AUS HEAT RULES

Australian Open officials have amended the tournament's heat policy so that matches in progress when extreme conditions are declared won't have to be immediately finished.

Players in the Jan. 14-27 tournament at Melbourne Park will no longer have to complete matches that are already under way once the extreme heat rule is invoked, instead only having to complete the current set.

Previously, players who had just started a match had to complete it, even if it meant sweltering through a full three or five sets in extreme conditions.

In another change announced Saturday, the decision to suspend play will be solely at the discretion of the tournament referee. Previously, Open organizers used a specific cutoff point, based on calculations of a set of weather readings that included court temperature and humidity.

"Previously if we invoked the heat policy the matches continued until the conclusion of a match," Tiley said. "Some players were out here in very extreme conditions for another three to four hours.

"Now we're saying at the end of a set the matches will come in, so we're not going to create that situation where players have to battle it out with a lack of performance because of the heat for a long time."

As in the past, play will be able to continue on the two courts with retractable roofs, Rod Laver Arena and Vodafone Arena.

Tiley said the newly installed Plexicushion courts, which replaced the old Rebound Ace surface, would also help player comfort. He said the new courts had a thinner layer of rubberized cushioning, which meant they would retain less heat.