Despite sitting out since winning the Australian Open due to a three-month period of ineligibility for an anti-doping rule violation, Jannik Sinner remains the clear No. 1 in the PIF ATP Rankings at the end of the post-Australia hard-court season.
Alexander Zverev missed a chance to make up ground in the chase for No. 1 with early losses at the ATP 1000 events in Indian Wells and Miami. Sinner now holds a lead of 2,685 ranking points over Zverev – the equivalent of a Grand Slam title plus a runner-up finish at an ATP 1000 event – and now appears likely to maintain the No. 1 ranking through his return to the tour.
Sinner’s new total of 43 weeks at No. 1 is the 13th-best total of all time.
Even beyond the No. 1 spot, it’s a good time to have a first name starting with “J” in men’s tennis. Young stars Jack Draper, Jakub Mensik, and João Fonseca made significant moves up the rankings weeks after Australia. As for the upcoming clay-court season, a top 10 player could be in for a “Ruud” awakening without strong spring results.
Who moved up the ATP rankings since the Australian Open?
Jack Draper rose nine spots after Australia to a career-best ranking of No. 7, mostly based on his breakthrough win at Indian Wells. Jakub Mensik was 48th after the Australian Open, but he is 24th after winning the ATP 1000 event in Miami.
Brazilian star-in-the-making João Fonseca made the most significant jump of any player in the top 100. He rose 40 places after Australia to No. 59 entering the clay-court season.
Who moved down?
Grigor Dimitrov showed signs of returning to form with a semifinal appearance in Miami, but lost enough ranking points throughout February and March to fall from No. 11 after Australia to No. 18 at the end of March.
Who's about to rise?
Current No. 15 Arthur Fils could be a top-eight seed in time for his home Grand Slam, the French Open, with a series of good spring events. Current No. 16 Lorenzo Musetti has surprisingly few ranking points to defend during the clay court season. If Musetti can achieve a breakthrough at a big event, he will break into the top 10.
Who could fall?
Current No. 6 Casper Ruud defends a considerable percentage of his ranking points during the clay court season and hasn’t beaten anyone in the top 50 in a tournament in 2025. If Ruud experiences a dip in his usual clay-court form, he could slide out of the top 10 – or worse.
27 years ago this happened
This week in 1998, fresh off sweeping the titles at Indian Wells and Miami, Marcelo Rios from Chile became the first player from South America to rise to No. 1 in the ATP rankings. Rios is now the answer to another trivia question: He’s the only player to reach No. 1 in the world and never win a major title.