The US Open will offer a record $108 million in total prize money at this year's final Grand Slam of the tennis season, marking the largest purse in the history of the sport. The announcement was made on Thursday and comes amid growing calls from players for a larger share of Grand Slam tournament revenues. Singles Champions to Earn $5.5 Million The men's and women's singles champions at the August 23 to September 13 tournament in New York will each receive $5.5 million.