Martin Kaymer golfer in the world, making him only the second German (after Bernhard Langer) to be the top-ranked golfer in the world. At the time he was the second youngest to reach world number one behind Tiger Woods, soon surpassed by Rory McIlroy in March 2012, who gained the top ranking at age 22. In April, he relinquished his number one ranking after eight weeks to Westwood, who won the Indonesian Masters. After reaching the number one ranking, Kaymer decided to undergo a swing change to be able to move the ball both ways. Frustrated with his disappointing results at the
2013 French Open million euros by 2016. In comparison, US Open prize money will reach $33.6 million this year and rise to $50 million by 2017, while Wimbledon prize money was more than 16 million pounds ($24.61 million) in 2012. In the 2013 season, the French Open's prize money is the lowest out of four grand slam tournaments, compared to $30m at the Australian Open, $34m at Wimbledon, and $32m at the US Open. Men's Singles The following are the seeded players and notable players who withdrew from the event. Rankings are as of 20 May 2013 and the Points are as of