Otto Virtanen

Virtanen came out of Hyvinkää and turned pro in 2018, the same year he peaked at No. 6 in the junior rankings and won the Orange Bowl. The climb after that was Challenger-length — five titles from five finals, the first at Bergamo in 2022 as a qualifier, with Jan-Lennard Struff beaten in the final. His first tour-level wins came in Finland's Davis Cup colors rather than on the circuit.

At 1.93 m, the game is built around the delivery, and the rates back it: 11.2 percent aces and 72.8 percent of first-serve points won in 2026, with 83.5 percent of service games held. The two-handed backhand is dependable rather than a weapon and the return is thin at 28.7 percent of points won, so his matches tend to be decided in the margins — tiebreaks, one break a set.

The defining week was Malaga in November 2023, when he beat Gabriel Diallo in singles and partnered Harri Heliövaara in the doubles to knock out defending champion Canada, taking Finland to its first Davis Cup semifinal. The majors followed: a first Grand Slam main-draw win in a 6-3, 6-2, 6-2 result over Max Purcell at Wimbledon in 2024, then five sets with Tommy Paul, and a career-high ATP No. 91 that November. Two years on he went five sets past fifth-ranked Ben Shelton, the best win of his career by opponent rank.

As of September 2026 he sits ATP No. 109 with 574 points, Finland's top-ranked man and still without a tour-level title, the season reading 1-6 — though that includes two tiebreak sets held over Andrey Rublev at the US Open before the deciding tiebreak went the other way.