It was a three-tournament week on the ATP Tour, with the world's best players competing across Marseille, Buenos Aires and Delray Beach. It was also a historic week, with Joao Fonseca claiming his first ATP Tour title at the IEB+ Argentina Open.
Miomir Kecmanovic returned to the Top 50 with his victory at the Delray Beach Open and Ugo Humbert continued his rise by lifting the trophy at the Open 13 Provence. ATPTour.com looks at the movers in the PIF ATP Rankings as of Monday, 17 February.
No. 68 Joao Fonseca, +31 (Career High)
One year ago, Fonseca was No. 655 in the PIF ATP Rankings. Now the Brazilian is up to a career-high World No. 68 after claiming his maiden tour-level crown in Buenos Aires. The 18-year-old became the youngest South American player in the ATP Tour era (since 1990) to win a title. He is the second-youngest South American to triumph in the Open Era, only behind Guillermo Perez-Roldan, who was victorious at a younger age on three occasions in 1987. Fonseca made two ATP Tour quarter-finals last year, but this was the first time he advanced further and the 2024 Next Gen ATP Finals presented by PIF sealed his breakthrough with an impressive showing in the final against Francisco Cerundolo, the home favourite.
No. 42 Miomir Kecmanovic, +14
Kecmanovic has been ranked between No. 50 and No. 58 since July of last year, but the Serbian made a splash at the Delray Beach Open. Despite facing two championship points in the deciding set of the final against Alejandro Davidovich Fokina, the former World No. 27 bounced back to claim his second ATP Tour trophy and with it surge to World No. 42.
No. 73 Hamad Medjedovic, +23 (Career High)
It has been a dream start to the season for Medjedovic, the 2023 Next Gen ATP Finals presented by PIF champion. The Serbian began his season having never cracked the world's Top 100. The 21-year-old won his first tournament of the season at an ATP Challenger Tour event in Oeiras, Portugal, and has not looked back. Medjedovic advanced to his second ATP Tour final with victories over the likes of Karen Khachanov and Daniil Medvedev in Marseille. Although he was unable to finish off the Open 13 Provence, it was another standout performance for the new World No. 73.
No. 6 Daniil Medvedev, +2
The former World No. 1 fell short of earning his first ATP Tour title since 2023 Rome last week in Marseille. However, the 29-year-old climbed two spots to World No. 6, passing Novak Djokovic and Alex de Minaur. Medvedev made his first semi-final of the year with victories against Pierre-Hugues Herbert and Jan-Lennard Struff, two players with dangerous games indoors.
No. 14 Ugo Humbert, +3
Could Humbert be the next player to break into the Top 10? The Frenchman, who successfully defended the Marseille title, is up three spots to No. 14, just one spot from his career high. The lefty is just 355 points behind World No. 10 Andrey Rublev.
Other Notable Top 100 Movers
No. 26 Francisco Cerundolo, +2
No. 33 Alex Michelsen, +4(Career High)
No. 34 Matteo Arnaldi, +4
No. 37 Pedro Martinez, +4(Career High)
No. 50 Alejandro Davidovich Fokina, +10
No. 74 Daniel Altmaier, +6
No. 84 Marton Fucsovics, +13
No. 98 Laslo Djere, +14
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