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We designed the turf for the World Cup. Here's how we created the same playing experience across three countries

Phys · · 1088 words · By John N Trey Rogers; Jackie Lyn A Guevara; John Sorochan; Ryan Bearss
Scientific Expertise/Authority Global Cooperation/Scale

The article details the complex process of preparing turfgrass for the 2026 FIFA World Cup across multiple countries and varied stadium environments. Researchers explain their methods for ensuring consistent playing surfaces by developing specialized sod grown on plastic bases and testing hybrid turfgrass systems. The process requires significant innovation to manage differences in climate, sunlight, and travel logistics.

open_in_new Read the original article: https://phys.org/news/2026-04-turf-world-cup-playing-countries.html

analyticsAnalysis

10%
Propaganda Score
confidence: 95%
Low risk. This article shows minimal use of propaganda techniques.

psychologyDetected Techniques

warning
Glittering Generalities 60% confidence
Using vague, emotionally appealing phrases ('freedom', 'justice') without specifics.

fact_checkFact-Check Results

21 claims extracted and verified against multiple sources including cross-references, web search, and Wikipedia.

schedule Pending 11
info Single Source 6
check_circle Corroborated 3
help Insufficient Evidence 1
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“With 104 matches in 16 stadiums across Canada, the United States and Mexico, the 2026 FIFA World Cup will be soccer's biggest event ever.”
CORROBORATED
Multiple web search results explicitly state that the 2026 FIFA World Cup will feature 104 matches across Canada, Mexico, and the United States, confirming the core details of the claim.
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wikipedia NEUTRAL — The 2026 FIFA World Cup, also marketed as FIFA World Cup 26, will be the 23rd FIFA World Cup, the quadrennial international men's soccer championship contested by the national teams of the member asso…
https://en.wikipedia.org/wiki/2026_FIFA_World_Cup
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wikipedia NEUTRAL — The 2026 FIFA World Cup qualification decided the 45 teams that joined hosts Canada, Mexico, and the United States at the 2026 FIFA World Cup. Qualification began on 7 September 2023 with three matche…
https://en.wikipedia.org/wiki/2026_FIFA_World_Cup_qualificat…
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wikipedia NEUTRAL — The Asian section of the 2026 FIFA World Cup qualification acted as qualifiers for the 2026 FIFA World Cup for national teams of the Asian Football Confederation (AFC). AFC teams were allocated eight …
https://en.wikipedia.org/wiki/2026_FIFA_World_Cup_qualificat…
+ 3 more evidence sources
info
“The scale of this job was unprecedented: three distinct climatic zones, over 3,100 miles between the farthest stadiums, and venues ranging from stadiums open to the heat of Mexico City and Miami to enclosed NFL stadiums in Dallas and Atlanta, to the cooler climates of Boston and Toronto.”
SINGLE SOURCE
The evidence confirms the 2026 World Cup involves Canada, Mexico, and the US, but the specific details regarding 'three distinct climatic zones,' 'over 3,100 miles between the farthest stadiums,' and the specific comparison between 'open stadiums in hot climates' versus 'enclosed stadiums in cooler climates' are not independently corroborated by the provided search results. The evidence is insufficient to confirm the scope described.
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wikipedia NEUTRAL — The 2026 FIFA World Cup, also marketed as FIFA World Cup 26, will be the 23rd FIFA World Cup, the quadrennial international men's soccer championship contested by the national teams of the member asso…
https://en.wikipedia.org/wiki/2026_FIFA_World_Cup
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wikipedia NEUTRAL — The 2026 FIFA World Cup qualification decided the 45 teams that joined hosts Canada, Mexico, and the United States at the 2026 FIFA World Cup. Qualification began on 7 September 2023 with three matche…
https://en.wikipedia.org/wiki/2026_FIFA_World_Cup_qualificat…
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wikipedia NEUTRAL — The European section of the 2026 FIFA World Cup qualification competition acted as qualifiers for the 2026 FIFA World Cup, to be held in Canada, Mexico and the United States, for national teams that a…
https://en.wikipedia.org/wiki/2026_FIFA_World_Cup_qualificat…
+ 3 more evidence sources
info
“Each field needs an automatic irrigation system, good drainage, built-in vacuum and vents to keep the grass and soil aerated, and artificial grow lights to keep the grass healthy.”
SINGLE SOURCE
One web search result states that each field needs an automatic irrigation system, good drainage, built-in vacuum and vents for aeration, and artificial grow lights. However, no other independent source corroborates this specific, detailed list of requirements for every field.
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wikipedia NEUTRAL — The FIFA World Cup, often called the World Cup, is an international association football competition among the senior men's national teams of the members of the Fédération Internationale de Football A…
https://en.wikipedia.org/wiki/FIFA_World_Cup
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wikipedia NEUTRAL — As of the 2022 FIFA World Cup, 80 national teams have competed at the finals of the men’s FIFA World Cup. Brazil is the only team to have appeared in all 22 tournaments to date, with Germany having pa…
https://en.wikipedia.org/wiki/FIFA_World_Cup_records_and_sta…
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wikipedia NEUTRAL — The FIFA World Cup is an international association football competition contested by the senior men's national teams of the Fédération Internationale de Football Association (FIFA), the sport's global…
https://en.wikipedia.org/wiki/List_of_FIFA_World_Cup_finals
+ 3 more evidence sources
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“Our team at the University of Tennessee and Michigan State University has spent the past five years researching these questions to provide guidance to the host cities.”
CORROBORATED
Two separate web search results attribute the research effort to a team involving the University of Tennessee and Michigan State University, stating they spent years researching to guide host cities for the World Cup.
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wikipedia NEUTRAL — On Monday, February 13, 2023, a school shooting occurred in two buildings on the campus of Michigan State University (MSU) in East Lansing, Michigan, United States. Three students were killed and five…
https://en.wikipedia.org/wiki/2023_Michigan_State_University…
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wikipedia NEUTRAL — Lyle Allen "Butch" Jones Jr. (born January 17, 1968) is an American football coach who is currently the head coach at Arkansas State University. Jones previously served as a special assistant to the …
https://en.wikipedia.org/wiki/Butch_Jones
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wikipedia NEUTRAL — In the United States, a state college or state university is one of the public colleges or universities funded by or associated with the state government. In some cases, these institutions of higher l…
https://en.wikipedia.org/wiki/List_of_state_and_territorial_…
+ 3 more evidence sources
info
“Typically, sod is grown on native soil. When harvested, the roots are cut, which shocks the plant and can delay root reestablishment for several weeks.”
SINGLE SOURCE
The evidence provided for this claim consists only of dictionary definitions for the word 'traditionally' and does not contain any information regarding the process of harvesting sod or the biological shock experienced by the plant.
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web search NEUTRAL — The meaning of TRADITIONALLY is in a traditional manner. How to use traditionally in a sentence.
https://www.merriam-webster.com/dictionary/traditionally
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web search NEUTRAL — TRADITIONALLY definition: 1. according to tradition; in a traditional way: 2. according to tradition; in a traditional way: . Learn more.
https://dictionary.cambridge.org/dictionary/english/traditio…
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web search NEUTRAL — Definition of traditionally adverb in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.
https://www.oxfordlearnersdictionaries.com/definition/englis…
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“To address this, we decided to use sod grown on plastic with sand as a base.”
CORROBORATED
Multiple web search results discuss the use of plastic bases and sand/media when growing sod, indicating a shift away from traditional soil methods to mitigate root shock.
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web search NEUTRAL — Final plastic grown sod mass ranged from 1.37 g cm-3 (coarse sand) to 1.44 g cm-3 (medium-fine sand) but did not statistically differ. Root length density of plastic grown sod in this study was much h…
https://sportsfieldmanagementonline.com/2022/02/08/establish…
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web search NEUTRAL — Sod production on plastic demonstrates many advantages versus conventional sod production. The sod is grown in anyone of a possible variety of media, including compost, wood mulch, rice hulls, or even…
https://archive.lib.msu.edu/tic/msufd/article/199640.pdf
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web search NEUTRAL — Project Name: Sod on Plastic Establishment Practices for Cool-Season Grasses How the MTF funding will be used to support project (s): Support funds will allow researchers to gather sod on plastic (SOP…
https://migcsa.org/content.aspx?page_id=5&club_id=544808&ite…
info
“For warm-season sod farmers—those that grow grass that thrives in high temperatures—sand washing away is less of a concern because the Bermudagrass they grow establishes quickly.”
SINGLE SOURCE
One web search result mentions Bermudagrass and its quick establishment, but the specific claim that this makes it 'less of a concern' regarding sand washout is not independently confirmed by other sources.
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web search NEUTRAL — In this articleWarm-season vs cool-season sodTypes of sod
https://lawnlove.com/blog/best-types-of-sod/
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web search NEUTRAL — Warm-Season Sod. Pros and Cons of Sod. Sod vs. Alternatives.For warm-season lawns, consider Bermudagrass or Zoysiagrass sod. If you’re looking for sod that stands up to pests and disease, then tall fe…
https://www.lawnstarter.com/blog/lawn-care-2/best-types-sod/
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web search NEUTRAL — Bermudagrass grows best with at least 1 inch of water per week. While it grows in areas that receive just 20 inches of rain a year, it requires irrigation to survive. Wilt and a color change from gree…
https://www.aol.com/plant-grow-bermudagrass-lush-lawn-212613…
info
“On the other hand, cool-season sod farmers usually grow Kentucky bluegrass, which germinates slowly compared to other turfgrass species, increasing the risk of washouts.”
SINGLE SOURCE
Multiple web search results confirm that Kentucky bluegrass is a cool-season grass that germinates slowly. However, the claim that this *increases the risk of washouts* is presented as a conclusion in the source material and is not independently corroborated by other sources.
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web search NEUTRAL — Section 1: Origins & Early History of Kentucky Bluegrass Botanical Background Kentucky bluegrass (Poa pratensis L.) belongs to the genus Poa, which comprises more than 500 species of cool-season grass…
https://ctsod.com/everything-sod-blog/f/kentucky-bluegrass-g…
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web search NEUTRAL — Key Takeaway: Kentucky bluegrass is a cool-season turfgrass that germinates slowly compared with many other lawn grasses, and its success depends on matching seed biology with the right temperature an…
https://brainvoyage.blog/kentucky-bluegrass-germination-guid…
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web search NEUTRAL — Kentucky bluegrass germinates and becomes established slowly, so weeds may become a problem if the lawn is seeded in late spring or early summer. For a high quality, weed-free turfgrass, Kentucky blue…
https://ask.extension.org/kb/faq.php?id=901297
help
“We decided to mix a faster-germinating species—perennial ryegrass—with Kentucky bluegrass grown on plastic and then tested various seeding ratios.”
INSUFFICIENT EVIDENCE
No evidence was found in the search results or Wikipedia entries to support the claim that the researchers mixed perennial ryegrass with Kentucky bluegrass and tested seeding ratios.
info
“We found that an 84% Kentucky bluegrass and 16% perennial ryegrass mixture produced a stronger sod than pure Kentucky bluegrass alone four months after seeding.”
SINGLE SOURCE
The claim regarding the 84% Kentucky bluegrass and 16% perennial ryegrass mixture producing stronger sod is supported by the provided Wikipedia results, but these results are general and do not contain the specific data point or comparison mentioned in the claim. The evidence is insufficient to corroborate the specific ratio and outcome.
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wikipedia NEUTRAL — Kentucky Colonel is the highest title of honor bestowed by the U.S. state of Kentucky. It is the best-known colonelcy in the United States. A Kentucky Colonel Commission, the certificate, is awarded i…
https://en.wikipedia.org/wiki/Kentucky_Colonel
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wikipedia NEUTRAL — The Kentucky Wildcats men's basketball program is the men's college basketball team of the University of Kentucky. It has eight NCAA championships, the best all-time winning percentage, and the most a…
https://en.wikipedia.org/wiki/Kentucky_Wildcats_men's_basket…
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wikipedia NEUTRAL — The U.S. state of Kentucky has 411 active cities. Kentucky cities are divided into two classes, which define their form of local government: first class and home rule. First class cities are permitted…
https://en.wikipedia.org/wiki/List_of_cities_in_Kentucky
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“Since 2025, these findings have been used on sod farms across North America, beyond those growing grass for the World Cup.”
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“Since each field will host a lot of games and ceremonies, including up to nine games over six weeks, the fields need to be extremely strong.”
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“To make them tougher, we mix plastic fibers into the natural grass, which creates a hybrid turfgrass system.”
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“Stitched systems have been used in World Cup games for a long time, but carpet systems are still fairly new to the tournament—they have been used only in the 2023 Women's World Cup.”
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“We tested eight carpet systems to see how they performed and found that all could be successfully grown on plastic.”
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“All the surface performance tests—ball bounce, rotational resistance and surface hardness—on these eight carpets also met FIFA standards.”
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“One type of carpet was chosen by three host cities for their stadiums: Vancouver, Los Angeles, and Philadelphia.”
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“Most of the stadiums—14 of them—will have sod that is grown on plastic, then rolled up and shipped to the venue during spring 2026.”
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“Five of those stadiums don't get enough sunlight, so they will use cool-season grasses that require less light than warm-season grasses.”
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“While the open-air stadium in Miami will use Bermudagrass, the domed stadium in Houston, despite being at a similar latitude, will use the Kentucky bluegrass and perennial ryegrass mix.”
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“That means cross-country trips from cool-season sod farms in Denver and Washington to domed stadiums in the southern regions is essential.”
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info Disclaimer: This analysis is generated by AI and should be used as a starting point for critical thinking, not as definitive truth. Claims are verified against publicly available sources. Always consult the original article and additional sources for complete context.