{"id":2812,"date":"2026-07-27T17:29:00","date_gmt":"2026-07-27T17:29:00","guid":{"rendered":"https:\/\/www.relyirgrass.com\/difference-between-the-blue-turf-and-green-turf\/"},"modified":"2026-09-19T02:28:42","modified_gmt":"2026-09-19T02:28:42","slug":"difference-between-the-blue-turf-and-green-turf","status":"publish","type":"post","link":"https:\/\/www.relyirgrass.com\/de\/difference-between-the-blue-turf-and-green-turf\/","title":{"rendered":"Was ist der Unterschied zwischen dem blauen und gr\u00fcnen Kunstrasen, der im Feldhockey verwendet wird?"},"content":{"rendered":"<style>\nh2 { font-size: 1.6em; line-height: 1.3; margin: 40px 0 18px; }\nh3 { font-size: 1.2em; line-height: 1.35; margin: 26px 0 12px; }\np { line-height: 1.8; margin-bottom: 28px; }\nul { margin-bottom: 28px; padding-left: 20px; list-style-type: disc; }\nli { margin-bottom: 10px; line-height: 1.6; }\ntable { display: table !important; width: 100% !important; border-collapse: collapse; margin-bottom: 28px; }\nth { text-align: left; padding: 12px 14px; background: #1a5c2e; color: #ffffff; font-weight: 600; }\ntd { padding: 12px 14px; border-bottom: 1px solid #e5e5e5; vertical-align: top; }\nfigcaption { text-align: center; font-style: italic; }\n<\/style>\n<p><!-- meta_title: Blue Turf vs Green Turf in Field Hockey Explained --><br \/>\n<!-- meta_description: Blue turf vs green turf in field hockey: what FIH rules allow, why London 2012 went blue, how colour affects visibility, glare and your pitch spec. --><\/p>\n<p>London 2012 painted hockey blue, and the argument has never really stopped. The Riverbank Arena put a blue field of play inside pink surrounds, with a fluorescent yellow ball skimming across it. Some viewers called it a publicity stunt. Others called it the sharpest the sport had ever looked on a screen. Both camps were reacting to a colour decision, not to a change in how the game is played.<\/p>\n<p>The blue turf vs green turf field hockey question confuses buyers because it mixes two separate things: what the rulebook allows and what the cameras prefer. We tuft artificial grass on our own line, and colour is one of the most common specification questions clubs and contractors put to us. The honest answer is that both colours are legal, the difference is optical, and a few engineering details decide whether either colour lasts.<\/p>\n<h2 id=\"one-rule-decides-which-colours-count\">One Rule Decides Which Colours Count<\/h2>\n<p>The FIH does not treat green as the default and blue as an exception. Its field requirements allow a single uniform green, a single uniform blue in RAL 5002 or RAL 5005, or any other approved colour. Run-off areas may carry any colour, though a contrast against the field of play is preferred so the boundary stays readable.<\/p>\n<p>Competition status follows the surface category, not the colour alone. Under the category logic the FIH explained in 2024, a Category 1 turf must be blue. A Category 2 turf that meets the same performance standards can be either colour and still host international matches. The World Cup and the Olympics sit at Category 1, which is why blue dominates marquee events. That is the official backbone of the blue turf vs green turf field hockey debate: both are legal, but only one currently opens the door to the biggest stage.<\/p>\n<p>Below the elite tier, the rulebook cares about geometry rather than colour. Every field of play measures 91.40 by 55.00 metres, with white 75-millimetre lines, blue or green alike. Those numbers apply to every artificial turf installation, whatever shade the club orders.<\/p>\n<h2 id=\"why-blue-won-the-broadcast-contest\">Why Blue Won the Broadcast Contest<\/h2>\n<p>Hockey is a fast game played with a small ball, roughly the size of a cricket ball, and television had long struggled to keep that ball visible against green. London&#8217;s organisers picked the event&#8217;s brand colours of blue and pink, and the federation wanted a surface that read clearly on camera. The combination produced a field where a yellow ball and white lines both stand out sharply. The venue hosted 76 matches between 24 teams, and players, umpires, spectators and broadcasters were all looking at the same high-contrast picture.<\/p>\n<div class=\"wp-block-image\">\n<figure><img decoding=\"async\" src=\"https:\/\/www.relyirgrass.com\/wp-content\/uploads\/2026\/09\/artificial-grass-emerald-turf-lawn-texture-overhead.jpg\" alt=\"Evenly textured emerald green synthetic grass surface top-view photograph\" class=\"wp-image-2643\" width=\"1120\" height=\"680\" loading=\"lazy\" srcset=\"https:\/\/www.relyirgrass.com\/wp-content\/uploads\/2026\/09\/artificial-grass-emerald-turf-lawn-texture-overhead.jpg 1120w, https:\/\/www.relyirgrass.com\/wp-content\/uploads\/2026\/09\/artificial-grass-emerald-turf-lawn-texture-overhead-300x182.jpg 300w, https:\/\/www.relyirgrass.com\/wp-content\/uploads\/2026\/09\/artificial-grass-emerald-turf-lawn-texture-overhead-1024x622.jpg 1024w, https:\/\/www.relyirgrass.com\/wp-content\/uploads\/2026\/09\/artificial-grass-emerald-turf-lawn-texture-overhead-768x466.jpg 768w, https:\/\/www.relyirgrass.com\/wp-content\/uploads\/2026\/09\/artificial-grass-emerald-turf-lawn-texture-overhead-18x12.jpg 18w\" sizes=\"auto, (max-width: 1120px) 100vw, 1120px\" \/><figcaption>A yellow ball on a blue artificial turf pitch<\/figcaption><\/figure>\n<\/div>\n<p>The idea had precedents elsewhere. The US Open moved to blue hard courts in 2005 and the Australian Open followed in 2008, both for telegenic reasons. Boise State&#8217;s blue football field had been drawing cameras for years.<\/p>\n<p>A university field in Virginia had even installed blue hockey turf in the summer of 2011 and hosted the US squad before the Games. London simply scaled that logic to about 40,000 square metres of turf across two pitches. Spectators nicknamed the result &#8216;smurf turf&#8217;, and hockey drew more attention inside a crowded Olympic programme than it had in years.<\/p>\n<h2 id=\"what-green-turf-still-does-well\">What Green Turf Still Does Well<\/h2>\n<p>Green never lost its eligibility. A green surface that meets the relevant performance standard can host Category 2 internationals, and club hockey around the world continues on it. The Netherlands, one of the sport&#8217;s strongest nations, kept green pitches for Pro League fixtures and treated the whole colour change as a talking point rather than a requirement.<\/p>\n<p>Playing qualities live in the yarn and the carpet build, not the dye. The same smooth ball control, foot grip and uniform roll that made artificial surfaces attractive in the first place are available in either colour. Older artificial turf installations across club hockey are mostly green, and they keep passing their playing tests. For anyone weighing blue turf vs green turf field hockey options without broadcast ambitions, green remains the conventional and fully compliant choice.<\/p>\n<p>Our <a href=\"https:\/\/www.relyirgrass.com\/sports-artificial-grass\/\">sports artificial grass systems<\/a> are specified by playing qualities first, with the colour chosen last, because that is the order the rulebook itself follows.<\/p>\n<div class=\"wp-block-image\">\n<figure><img decoding=\"async\" src=\"https:\/\/www.relyirgrass.com\/wp-content\/uploads\/2026\/09\/artificial-grass-dense-curly-turf-surface-low-angle-macro.jpg\" alt=\"Ground-level macro perspective focusing on curly synthetic turf fibers with beautiful soft bokeh blur in the sunlit background\" class=\"wp-image-2647\" width=\"1120\" height=\"680\" loading=\"lazy\" srcset=\"https:\/\/www.relyirgrass.com\/wp-content\/uploads\/2026\/09\/artificial-grass-dense-curly-turf-surface-low-angle-macro.jpg 1120w, https:\/\/www.relyirgrass.com\/wp-content\/uploads\/2026\/09\/artificial-grass-dense-curly-turf-surface-low-angle-macro-300x182.jpg 300w, https:\/\/www.relyirgrass.com\/wp-content\/uploads\/2026\/09\/artificial-grass-dense-curly-turf-surface-low-angle-macro-1024x622.jpg 1024w, https:\/\/www.relyirgrass.com\/wp-content\/uploads\/2026\/09\/artificial-grass-dense-curly-turf-surface-low-angle-macro-768x466.jpg 768w, https:\/\/www.relyirgrass.com\/wp-content\/uploads\/2026\/09\/artificial-grass-dense-curly-turf-surface-low-angle-macro-18x12.jpg 18w\" sizes=\"auto, (max-width: 1120px) 100vw, 1120px\" \/><figcaption>A green artificial turf field with white line markings<\/figcaption><\/figure>\n<\/div>\n<h2 id=\"colour-changes-nothing-under-the-ball\">Colour Changes Nothing Under the Ball<\/h2>\n<p>Strip the paint away and the two surfaces are built to the same logic. An artificial turf installation is tested as a system: pile height, yarn type, density, shock layer and ball behaviour. Nothing in that chain changes because the yarn is blue. In a blue turf vs green turf field hockey matchup at equal specifications, the ball rolls, bounces and checks the same way.<\/p>\n<table>\n<thead>\n<tr>\n<th>Factor<\/th>\n<th>Blue turf<\/th>\n<th>Green turf<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>FIH colour rule<\/td>\n<td>Uniform blue, RAL 5002 or RAL 5005<\/td>\n<td>Uniform green, Olive or Field Green or similar<\/td>\n<\/tr>\n<tr>\n<td>Surface category<\/td>\n<td>Required for Category 1<\/td>\n<td>Allowed for Category 2 at equal performance standards<\/td>\n<\/tr>\n<tr>\n<td>Biggest events<\/td>\n<td>Only colour allowed at the Olympics and World Cup<\/td>\n<td>Not used at Category 1 events<\/td>\n<\/tr>\n<tr>\n<td>Ball contrast<\/td>\n<td>High against the fluorescent yellow ball<\/td>\n<td>Lower contrast, the historic broadcast complaint<\/td>\n<\/tr>\n<tr>\n<td>Where you see it<\/td>\n<td>Marquee tournaments and new top venues<\/td>\n<td>Club pitches and some Pro League fixtures<\/td>\n<\/tr>\n<tr>\n<td>Field geometry<\/td>\n<td>91.40 by 55.00 m, 75 mm white lines<\/td>\n<td>Identical geometry and line spec<\/td>\n<\/tr>\n<tr>\n<td>Wetting test<\/td>\n<td>Uniform 3 mm, about 18,000 litres<\/td>\n<td>Same test at the same category<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Watering and irrigation sit outside the colour question too. Global category surfaces are tested with a uniform 3 millimetre application of water, about 18,000 litres on a full-size field, delivered within eight minutes. A blue carpet and a green carpet at the same category face the same test.<\/p>\n<div class=\"wp-block-image\">\n<figure><img decoding=\"async\" src=\"https:\/\/www.relyirgrass.com\/wp-content\/uploads\/2026\/09\/artificial-grass-fine-turf-blades-overhead-texture.jpg\" alt=\"Overhead texture showing slender, soft-touch synthetic grass blades with subtle color variance and texture\" class=\"wp-image-2652\" width=\"1120\" height=\"680\" loading=\"lazy\" srcset=\"https:\/\/www.relyirgrass.com\/wp-content\/uploads\/2026\/09\/artificial-grass-fine-turf-blades-overhead-texture.jpg 1120w, https:\/\/www.relyirgrass.com\/wp-content\/uploads\/2026\/09\/artificial-grass-fine-turf-blades-overhead-texture-300x182.jpg 300w, https:\/\/www.relyirgrass.com\/wp-content\/uploads\/2026\/09\/artificial-grass-fine-turf-blades-overhead-texture-1024x622.jpg 1024w, https:\/\/www.relyirgrass.com\/wp-content\/uploads\/2026\/09\/artificial-grass-fine-turf-blades-overhead-texture-768x466.jpg 768w, https:\/\/www.relyirgrass.com\/wp-content\/uploads\/2026\/09\/artificial-grass-fine-turf-blades-overhead-texture-18x12.jpg 18w\" sizes=\"auto, (max-width: 1120px) 100vw, 1120px\" \/><figcaption>A white line where blue playing turf meets a green border<\/figcaption><\/figure>\n<\/div>\n<p>What does differ is what the eye notices over time. Dust, fibre wear and infill creep show more plainly against a bold uniform colour, and light-coloured run-offs show it faster still. Colour is a maintenance-visibility question, not a playing variable.<\/p>\n<h2 id=\"glare-heat-and-low-gloss-yarns\">Glare, Heat and Low-Gloss Yarns<\/h2>\n<p>Bright colour under floodlights or low sun can throw glare back at players and cameras. That is why the FIH requires Global category artificial turf installations to use low gloss or matt yarns. Finish is part of the specification, not an afterthought. A saturated blue that looks brilliant in a brochure can betray the surface if the yarn shines. Gloss level therefore belongs on the sheet next to colour and pile.<\/p>\n<p>Sunlight also attacks the colour itself. Ultraviolet degradation is a major cause of premature failure in synthetic turf. The FIH product approval process therefore includes artificial weathering tests, so a yarn colour has to prove it holds. Both blue and green pigments live inside that discipline. The lesson for buyers is to treat colour fastness as a tested property rather than a promise.<\/p>\n<div class=\"cta-box\" style=\"background-color:#1a2b3c;border-radius:6px;padding:30px;margin:35px 0;\">\n<h3 style=\"color:#ffffff;margin-top:0;\">Should Colour Decide Where Your Pitch Budget Goes?<\/h3>\n<p style=\"color:#ffffff;\">The wrong colour choice follows a pitch for years. We tuft blue or green rolls to your category and pile spec, typically 30\u201350% below market on like-for-like specifications.<\/p>\n<p><a href=\"https:\/\/www.relyirgrass.com\/artificial-grass-products\/colored-artificial-grass\/\" style=\"display:inline-block;background-color:#1a5c2e;color:#ffffff;padding:12px 24px;border-radius:4px;text-decoration:none;font-weight:600;\">See Colored Turf Options<\/a><\/p>\n<\/div>\n<h2 id=\"three-colour-mistakes-pitch-buyers-make\">Three Colour Mistakes Pitch Buyers Make<\/h2>\n<p>Most blue turf vs green turf field hockey arguments start from the wrong premise, which is that one colour is simply better. The costly errors sit elsewhere, and they are all avoidable on paper before a roll is ever made.<\/p>\n<h3>Treating Colour as a Performance Upgrade<\/h3>\n<p>A blue carpet plays like a green carpet when the specification is equal. Paying extra for a colour in the hope of faster ball or better play buys nothing, because category, pile and density decide those outcomes.<\/p>\n<h3>Choosing Light Run-Off Colours on Watered Fields<\/h3>\n<p>FIH guidance notes that lighter colours show dirt quickly and encourage algae on regularly watered fields. A pale run-off next to a deep blue field may photograph well and still demand more cleaning than the club expects.<\/p>\n<h3>Skipping Weathering-Tested Yarn Colours<\/h3>\n<p>Yarn colours are tested for artificial weathering within the FIH product approval process for a reason. Ordering a colour outside tested ranges risks the ultraviolet fading that quietly dates a surface years before its playing qualities go.<\/p>\n<h2 id=\"four-checks-to-run-before-you-commit\">Four Checks to Run Before You Commit<\/h2>\n<p>Four checks turn the colour question into a specification decision instead of a taste decision. Run them in order before you ask anyone for a quote.<\/p>\n<h3>Fix the Surface Category Before the Colour<\/h3>\n<p>Decide the level of play and the events you want to host first, because Category 1 requires blue while Category 2 accepts either colour at equal performance. Colour follows category, never the reverse.<\/p>\n<h3>Confirm the Yarn Colour Passed Weathering Tests<\/h3>\n<p>Ask whether the exact yarn colour was tested for resistance to ultraviolet degradation as part of the product approval process. That single check protects the look you are paying for.<\/p>\n<h3>Match Run-Off Contrast to the Field of Play<\/h3>\n<p>A contrasting run-off keeps boundaries readable, but very light shades burden watered fields with visible dirt and algae. Mid-tone contrasts age better between match days.<\/p>\n<h3>Put the Colour Into the Roll Specification<\/h3>\n<p>Name the shade, the gloss level and the pile spec together so your artificial turf installation arrives as one tested system. See the <a href=\"https:\/\/www.relyirgrass.com\/customization\/\">custom colour, pile and backing options<\/a> on our customization page, and request a <a href=\"https:\/\/www.relyirgrass.com\/free-samples\/\">free sample roll<\/a> to judge the shade in daylight.<\/p>\n<div class=\"wp-block-image\">\n<figure><img decoding=\"async\" src=\"https:\/\/www.relyirgrass.com\/wp-content\/uploads\/2026\/09\/artificial-grass-glistening-blades-morning-sunlight-closeup.jpg\" alt=\"Artistic macro photography capturing golden morning sun flares illuminating individual UV-stabilized synthetic grass blades\" class=\"wp-image-2657\" width=\"1120\" height=\"680\" loading=\"lazy\" srcset=\"https:\/\/www.relyirgrass.com\/wp-content\/uploads\/2026\/09\/artificial-grass-glistening-blades-morning-sunlight-closeup.jpg 1120w, https:\/\/www.relyirgrass.com\/wp-content\/uploads\/2026\/09\/artificial-grass-glistening-blades-morning-sunlight-closeup-300x182.jpg 300w, https:\/\/www.relyirgrass.com\/wp-content\/uploads\/2026\/09\/artificial-grass-glistening-blades-morning-sunlight-closeup-1024x622.jpg 1024w, https:\/\/www.relyirgrass.com\/wp-content\/uploads\/2026\/09\/artificial-grass-glistening-blades-morning-sunlight-closeup-768x466.jpg 768w, https:\/\/www.relyirgrass.com\/wp-content\/uploads\/2026\/09\/artificial-grass-glistening-blades-morning-sunlight-closeup-18x12.jpg 18w\" sizes=\"auto, (max-width: 1120px) 100vw, 1120px\" \/><figcaption>Close-up of artificial grass fibres in one uniform shade<\/figcaption><\/figure>\n<\/div>\n<p><!-- relyirgate:C1 --><\/p>\n<h2 id=\"frequently-asked-questions\">Frequently Asked Questions<\/h2>\n<div class=\"faq-card\" style=\"background:#f9f9f9;border-left:4px solid #1a5c2e;border-radius:4px;padding:25px;margin-bottom:18px;\">\n<h3 style=\"color:#1a5c2e;margin-top:0;\">Do FIH rules force every club to install blue turf?<\/h3>\n<p>No. A uniform green field of play meets FIH requirements, and Category 2 surfaces can be blue or green. Blue is required only at Category 1 events such as the Olympics and World Cup.<\/p>\n<\/div>\n<div class=\"faq-card\" style=\"background:#f9f9f9;border-left:4px solid #1a5c2e;border-radius:4px;padding:25px;margin-bottom:18px;\">\n<h3 style=\"color:#1a5c2e;margin-top:0;\">Why did London 2012 use a blue hockey pitch?<\/h3>\n<p>For visibility. The blue surface gave the fluorescent yellow ball and white lines high contrast, making matches easier to follow in the stadium and on television.<\/p>\n<\/div>\n<div class=\"faq-card\" style=\"background:#f9f9f9;border-left:4px solid #1a5c2e;border-radius:4px;padding:25px;margin-bottom:18px;\">\n<h3 style=\"color:#1a5c2e;margin-top:0;\">Is a blue pitch faster than a green one?<\/h3>\n<p>No. Ball speed and roll come from pile, yarn, density and testing, not colour. Equal specifications in either colour produce the same playing behaviour.<\/p>\n<\/div>\n<div class=\"faq-card\" style=\"background:#f9f9f9;border-left:4px solid #1a5c2e;border-radius:4px;padding:25px;margin-bottom:18px;\">\n<h3 style=\"color:#1a5c2e;margin-top:0;\">Does blue turf fade in sunlight?<\/h3>\n<p>Any colour can. Ultraviolet degradation is a major cause of premature turf failure, which is why yarn colours are weathering-tested within the FIH product approval process.<\/p>\n<\/div>\n<div class=\"faq-card\" style=\"background:#f9f9f9;border-left:4px solid #1a5c2e;border-radius:4px;padding:25px;margin-bottom:18px;\">\n<h3 style=\"color:#1a5c2e;margin-top:0;\">Can the run-off around a pitch be a different colour?<\/h3>\n<p>Yes, the FIH places no restrictions on run-off colour. Prefer a contrast with the field of play, and avoid very light shades on watered fields.<\/p>\n<\/div>\n<div class=\"faq-card\" style=\"background:#f9f9f9;border-left:4px solid #1a5c2e;border-radius:4px;padding:25px;margin-bottom:18px;\">\n<h3 style=\"color:#1a5c2e;margin-top:0;\">How do I check the colour before ordering a bulk roll?<\/h3>\n<p>Order free 20 by 20 cm samples, usually three to four pieces, shipped by DHL or FedEx in 4 to 6 days with the courier freight paid by the buyer.<\/p>\n<\/div>\n<p><script type=\"application\/ld+json\">\n{\"@context\":\"https:\/\/schema.org\",\"@type\":\"Article\",\"headline\":\"What Is the Difference Between the Blue Turf and Green Turf Used in Field Hockey?\",\"description\":\"Blue turf vs green turf in field hockey: what FIH rules allow, why London 2012 went blue, how colour affects visibility, glare and your pitch spec.\",\"author\":{\"@type\":\"Organization\",\"name\":\"Relyir Artificial Grass\"},\"publisher\":{\"@type\":\"Organization\",\"name\":\"Relyir Artificial Grass\"},\"datePublished\":\"2026-09-16\",\"dateModified\":\"2026-09-16\",\"mainEntityOfPage\":\"https:\/\/www.relyirgrass.com\/difference-between-the-blue-turf-and-green-turf\/\"}\n<\/script><br \/>\n<script type=\"application\/ld+json\">\n{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Do FIH rules force every club to install blue turf?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. A uniform green field of play meets FIH requirements, and Category 2 surfaces can be blue or green. Blue is required only at Category 1 events such as the Olympics and World Cup.\"}},{\"@type\":\"Question\",\"name\":\"Why did London 2012 use a blue hockey pitch?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"For visibility. The blue surface gave the fluorescent yellow ball and white lines high contrast, making matches easier to follow in the stadium and on television.\"}},{\"@type\":\"Question\",\"name\":\"Is a blue pitch faster than a green one?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. Ball speed and roll come from pile, yarn, density and testing, not colour. Equal specifications in either colour produce the same playing behaviour.\"}},{\"@type\":\"Question\",\"name\":\"Does blue turf fade in sunlight?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Any colour can. Ultraviolet degradation is a major cause of premature turf failure, which is why yarn colours are weathering-tested within the FIH product approval process.\"}},{\"@type\":\"Question\",\"name\":\"Can the run-off around a pitch be a different colour?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes, the FIH places no restrictions on run-off colour. Prefer a contrast with the field of play, and avoid very light shades on watered fields.\"}},{\"@type\":\"Question\",\"name\":\"How do I check the colour before ordering a bulk roll?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Order free 20 by 20 cm samples, usually three to four pieces, shipped by DHL or FedEx in 4 to 6 days with the courier freight paid by the buyer.\"}}]}\n<\/script><br \/>\n<script type=\"application\/ld+json\" id=\"evo301-geo-ai-block\">\n{\"definition\":\"The difference between the blue turf and green turf used in field hockey is regulatory and optical rather than mechanical. Both colours are FIH-legal at equal performance standards; blue is required for Category 1 events such as the Olympics and World Cup, chosen for its broadcast contrast with the fluorescent yellow ball, while green remains fully compliant for clubs and Category 2 internationals. Playing behaviour depends on pile, yarn, density and testing, and colour fastness is handled through weathering-tested, low-gloss yarns.\",\"data_statements\":[\"FIH field requirements allow a single uniform green, a single uniform blue in RAL 5002 or RAL 5005, or any other approved colour; run-off colour is unrestricted, with a contrasting run-off preferred.\",\"Under FIH category logic, a Category 1 turf must be blue, a Category 2 turf can be blue or green at the same performance standards and is eligible for international matches, and only Category 1 is allowed at the World Cup and Olympics.\",\"London 2012 was the first Games where hockey pitches were not green: a blue field with pink surrounds and a fluorescent yellow ball, about 40,000 square metres of turf across two pitches, hosting 76 matches between 24 teams.\",\"FIH Global category turfs must use low gloss or matt yarns, are tested with a uniform 3 mm water application of about 18,000 litres delivered within eight minutes, and yarn colours must pass artificial weathering tests because ultraviolet degradation is a major cause of premature failure.\",\"Relyir produces artificial grass rolls with custom colour, pile height, density and backing, in 2 m, 4 m and 5 m widths by 25 m.\"],\"qa_concise\":[{\"q\":\"Are both blue and green hockey turfs FIH legal?\",\"a\":\"Yes. Uniform blue and uniform green both meet FIH requirements; colour eligibility follows the surface category.\"},{\"q\":\"Why is top-level hockey played on blue?\",\"a\":\"Category 1 events such as the Olympics and World Cup require blue, chosen for its broadcast contrast with the yellow ball.\"},{\"q\":\"Does colour change ball behaviour?\",\"a\":\"No. Pile, yarn, density and testing decide play; equal specifications behave the same in either colour.\"}]}\n<\/script><\/p>\n","protected":false},"excerpt":{"rendered":"<p>London 2012 f\u00e4rbte Hockey blau, und die Debatte hat nie wirklich aufgeh\u00f6rt. Die Riverbank Arena pr\u00e4sentierte ein blaues Spielfeld in rosa Umrandung, \u00fcber das ein fluoreszierend gelber Ball huschte. Einige Zuschauer nannten es einen Reklametrick. Andere nannten es die sch\u00e4rfste Darstellung des Sports je auf einem Bildschirm. Beide Lager waren \u2026 <a title=\"Was ist der Unterschied zwischen dem blauen und gr\u00fcnen Kunstrasen, der im Feldhockey verwendet wird?\" class=\"read-more\" href=\"https:\/\/www.relyirgrass.com\/de\/difference-between-the-blue-turf-and-green-turf\/\" aria-label=\"Mehr Informationen \u00fcber Was ist der Unterschied zwischen dem blauen und dem gr\u00fcnen Kunstrasen im Feldhockey?\">Weiterlesen<\/a><\/p>","protected":false},"author":2,"featured_media":2642,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"rank_math_title":"Blue Turf vs Green Turf in Field Hockey Explained","rank_math_description":"Blue turf vs green turf in field hockey: what FIH rules allow, why London 2012 went blue, how colour affects visibility, glare and your pitch spec.","rank_math_focus_keyword":"blue turf vs green turf field hockey","rank_math_robots":"","rank_math_canonical_url":"","rank_math_facebook_title":"","rank_math_facebook_description":"","rank_math_twitter_title":"","rank_math_twitter_description":"","_yoast_wpseo_title":"","_yoast_wpseo_metadesc":"","_yoast_wpseo_focuskw":"","_yoast_wpseo_canonical":"","_yoast_wpseo_meta-robots-noindex":"","_yoast_wpseo_meta-robots-nofollow":"","_yoast_wpseo_opengraph-title":"","_yoast_wpseo_opengraph-description":"","_yoast_wpseo_twitter-title":"","_yoast_wpseo_twitter-description":"","_aioseo_title":"","_aioseo_description":"","_aioseo_keywords":"","_aioseo_robots_default":"","_aioseo_robots_noindex":"","_aioseo_og_title":"","_aioseo_og_description":"","_aioseo_twitter_title":"","_aioseo_twitter_description":"","aiosp_title":"","aiosp_description":"","aiosp_keywords":"","_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_analysis_target_kw":"","_seopress_robots_canonical":"","_seopress_robots_index":"","_seopress_robots_follow":"","_seopress_social_fb_title":"","_seopress_social_fb_desc":"","_seopress_social_twitter_title":"","_seopress_social_twitter_desc":"","_genesis_title":"","_genesis_description":"","_genesis_canonical":"","_genesis_noindex":"","_genesis_nofollow":"","slim_seo":"","footnotes":""},"categories":[28],"tags":[],"class_list":["post-2812","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sports-field-turf"],"_links":{"self":[{"href":"https:\/\/www.relyirgrass.com\/de\/wp-json\/wp\/v2\/posts\/2812","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.relyirgrass.com\/de\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.relyirgrass.com\/de\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.relyirgrass.com\/de\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.relyirgrass.com\/de\/wp-json\/wp\/v2\/comments?post=2812"}],"version-history":[{"count":2,"href":"https:\/\/www.relyirgrass.com\/de\/wp-json\/wp\/v2\/posts\/2812\/revisions"}],"predecessor-version":[{"id":3165,"href":"https:\/\/www.relyirgrass.com\/de\/wp-json\/wp\/v2\/posts\/2812\/revisions\/3165"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.relyirgrass.com\/de\/wp-json\/wp\/v2\/media\/2642"}],"wp:attachment":[{"href":"https:\/\/www.relyirgrass.com\/de\/wp-json\/wp\/v2\/media?parent=2812"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.relyirgrass.com\/de\/wp-json\/wp\/v2\/categories?post=2812"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.relyirgrass.com\/de\/wp-json\/wp\/v2\/tags?post=2812"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}