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07.10.2025

ATP Considers Heat Rule After Shanghai Masters Retirements

The men’s tennis governing body may soon consider introducing a formal heat rule following multiple player retirements at the Shanghai Masters this week. The tournament saw top athletes struggling with high temperatures and oppressive humidity, leaving the competition wide open.

World number two Jannik Sinner was forced to end his title defense painfully, as severe cramps in his right thigh hindered his movement, leading to his retirement in the deciding set against Tallon Griekspoor in the third round on Sunday.

During his match with Yannick Hanfmann, Novak Djokovic experienced vomiting, while Holger Rune was overheard questioning an official if players were expected to “die on court” due to the intense heat and humidity during his game with Ugo Humbert.

“It’s the same for all players, but it’s brutal,” Djokovic commented after securing victory. “Facing over 80% humidity day after day is tough, especially for those playing under the sun during daytime matches.”

Other players like Casper Ruud, Tomas Machac, David Goffin, Terrence Atmane, Hamad Medjedovic, and Wu Yibing also withdrew mid-match due to illnesses or injuries in the early rounds.

The initial rounds experienced temperatures around 30 degrees Celsius (86 degrees Fahrenheit), with humidity levels sometimes exceeding 80%.

The call for a formal ATP heat rule was first raised in August in Cincinnati when Arthur Rinderknech collapsed on court in extreme conditions, leading to Felix Auger-Aliassime’s victory.

Per ATP regulations, decisions regarding play suspension due to severe weather, including extreme heat, are made by an onsite ATP supervisor in conjunction with medical teams and local authorities.

“In cases of extreme heat, the ATP Medical Services team takes several measures to safeguard player health during competition,” the governing body stated in an email to Reuters.

However, they are open to changes.

“This is under active review, with further measures, including a formal heat policy, being evaluated in consultation with players, tournaments, and medical experts,” it added.

“Player safety is a top priority for the ATP.”

Several professional sports like soccer, Formula One, and cycling have established formal policies for extreme weather conditions.

The ATP can look to other tennis organizations for a template, as the Grand Slams and the women’s WTA have implemented rules for extended breaks and match suspensions.