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Indian Express
3 days ago
- Climate
- Indian Express
What is the heat rule in Wimbledon and why is it in place?
Record-breaking temperatures are set to hit the 2025 Wimbledon grand slam tournament. The opening-day record of the past, 29.3C, was set in 2001, but that's expected to be broken now. The organisers have a heat rule in place for all singles matches. Wimbledon uses the Wet Bulb Globe Temperature (WBGT) scale to ascertain if the heat rule should be enforced. The WBGT's heat index is a measure that combines air temperature, humidity and surface temperature. It is measured by a heat stress monitor. If the WBGT is at 30.1C or higher, players will be permitted 10-minute breaks during a match. Only one player needs to request the permitted 10-minute break for it to be enforced. This rule won't be under use if the games are being played under roofs. WBGT readings at Wimbledon are measured 30 minutes prior to the start of play, at 2 pm BST and at 5 pm BST. For best-of-five-set matches in the men's singles, the 10-minute break will be enforced the end of the third set. In best-of-three-set matches, the heat break will be taken at the end of the second set. During breaks, players are allowed to leave the court but are not permitted to receive coaching or medical treatment. If a game has been carried over to next day because it couldn't be finished the previous evening, then the heat rule won't be applicable if they have already played a set in a best-of-three-set match. And it won't be applicable in a best-of-five-set-match if two sets were already completed the previous day. 'Adverse weather is a key consideration in our planning for The Championships, and we are prepared for the predicted hot weather, with comprehensive plans in place for guests, players, staff and the BBGs,' the All England Club said in a statement. Championships referee Denise Parnell explained: 'The heat rule will apply to all singles events at the Qualifying and Main Draw for The Championships 2025. These are the Gentlemen's Singles, Ladies' Singles, Boys' Singles, Girls' Singles, Gentlemen's Wheelchair Singles, Ladies' Wheelchair Singles, and Quad Wheelchair Singles. The UK Met Office says the hottest day recorded during the Wimbledon fortnight came on July 1 in 2015, when temperatures soared to 35.7°C at nearby Kew Gardens


BBC News
3 days ago
- Climate
- BBC News
What are the heat rules at Wimbledon?
Wimbledon is set to experience record-breaking temperatures on Monday - the start of the 2025 opening-day record of 29.3C - set in 2001 - is expected to be help keep players safe, Wimbledon has a heat rule for all singles matches when deemed uses the Wet Bulb Globe Temperature (WBGT) scale to determine whether the heat rule should be WBGT's heat index is a measure which pulls together air temperature, humidity and surface temperature and is measured by a heat stress monitorIf the WBGT is at 30.1C or higher, players will be permitted 10-minute breaks during a those played under roofs, the heat rule is not utilised. How does the heat rule work? The heat rule applies to all matches in singles competitions, even if they have already started when the WBGT surpasses 30.1C. Only one player needs to request the permitted 10-minute break for it to be best-of-five-set matches - in the men's singles - the 10-minute break will be taken at the end of the third set. In best-of-three-set matches, this is taken at the end of the second breaks, players are allowed to leave the court but are not permitted to receive coaching or medical readings at Wimbledon are measured 30 minutes prior to the start of play, at 14:00 BST and at 17:00 a match is carried over to the following day with the heat rule in place, it will not apply to a best-of-three-set match that has completed one set. It will also not be applied to any best-of-five-set matches that have completed two there be a match in progress during which the heat rule is lifted, it will remain in place until completion of that match. 'A feels-like temperature close to 37C ' - analysis The temperature at Wimbledon on Monday is expected to reach 33C, and possibly will make it easily the hottest opening day to the Championships - exceeding the previous record of 29.3C set in hot weather will stick around on Tuesday, with temperatures once again getting into the low 33C or 34C is the maximum air temperature, if you add in the humidity, the players and spectators will experience a heat index - or 'feels-like temperature' - closer to may even feel hotter on court, where there is more restricted we're not expecting to reach the highest recorded temperature during the Wimbledon fortnight of 35.7C, which was on 1 July weather will move in for the rest of the week with some rain expected on Wednesday and maybe the article is the latest from BBC Sport's Ask Me Anything team. What is Ask Me Anything? Ask Me Anything is a service dedicated to answering your want to reward your time by telling you things you do not know and reminding you of things you team will find out everything you need to know and be able to call upon a network of contacts including our experts and will be answering your questions from the heart of the BBC Sport newsroom, and going behind the scenes at some of the world's biggest sporting coverage will span the BBC Sport website, app, social media and YouTube accounts, plus BBC TV and radio. More questions answered... Will there be line judges at Wimbledon 2025?Could I qualify for Wimbledon?How are Wimbledon wildcards decided?Why do athletes take pickle juice?


BBC News
29-01-2025
- Climate
- BBC News
'Heat danger' warning about 2026 World Cup venues
The temperatures at 14 of the 16 stadiums being used for the 2026 World Cup could exceed potentially dangerous levels during the tournament, researchers have times for the tournament, which is being held in the United States, Canada and Mexico in June and July, have not been world governing body Fifa is being urged to avoid afternoon games at six of the locations with the highest heat risk and no indoor air led by Queen's University Belfast used 20 years of meteorological data to show how hot the host stadiums get during an average summer, using a 'wet bulb globe temperature' (WBGT) - which is a measure of heat stress combining heat and City and Vancouver are the only host cities where the temperature has not passed the potentially dangerous WBGT threshold of 28C. In four cities, the WBGT could reach the more dangerous threshold of an average year, more than 80% of June and July days exceed 28C in Dallas, Houston and those cities, the WBGT exceeds 26C by 10am on more than 50% of June and July days, and it remains above that threshold until 8pm more than 50% of the time."Early morning or late evening would be best at most locations," climate scientist Dr Donal Mullan, who led the research, told BBC Sport."But if I were to deliver a message to Fifa, I would say to avoid the afternoons, from midday to 6pm. That would massively reduce the risk of extreme heat."BBC Sport has contacted Fifa for comment on the report. The global average temperature has risen markedly since 1980, with 2024 the first year to be more than 1.5C above the pre-industrial previous World Cup - held in Qatar in 2022 - was moved from June and July, when temperatures regularly exceed 40C and can reach 50C in Doha, to November and December in order to protect players and report says the 2026 tournament risks seeing games played at "the level beyond which some football governing bodies recommend match delay or postponement".The heat policy of Football Australia, for example, states a match may be delayed or postponed when the WBGT reaches Fifa's guidelines say mandatory cooling breaks are provided in each half as a mitigation strategy, with a delay or postponement at the discretion of match players' union Fifpro, external believes Fifa's guidelines "do not do enough to protect the health and performance of players".It recommends cooling breaks when the WBGT is between 28C and 32C, and for games to be rescheduled above result of playing in such conditions range from small performance-impacting issues such as sleep disruption and late changes to event timings, to severe health impacts such as heat-related stress and is not just players who can be affected. During last year's Copa America, Guatemalan assistant referee Humberto Panjoj had to be withdrawn, external from a game in Kansas City after collapsing on the field when the WBGT was calculated to be Mullan says Miami and Monterrey "could pose the greatest risk" as they do not have air-conditioned report suggests afternoon games be avoided in Kansas City, Boston, New York and Philadelphia the hottest two host cities - Dallas and Houston - do have air conditioning, there is still a risk to spectators if games are played in the afternoon, Dr Mullan said."They will go back out into the soaring heat so there's a risk for spectators as well as the players and match officials," he research findings have been published in The International Journal of Biometeorology., external