ATP Tour
Netherlands
Stian Klaassen
- Season
- 15–11
- 57.7% win rate
- Career
- —
- Titles
- —
- Singles
- Prize money
- —
- Career
Recent form
1 loss in a row
- WBeat Marko Miladinovic
- WBeat William Zhang
- WBeat Theodore Dean
- WBeat Jack Anthrop
- LLost to Spencer Johnson
- WBeat Bjorn Schoemacher
- WBeat Marlon Vankan
- LLost to Benoit Torcq
- LLost to Arvid Nordquist
- LLost to Noah Schlagenhauf
- WBeat Gray Voelzke
- LLost to Emilien Demanet
Oldest to newest. Hover a result for the opponent.
By surface
Strongest on hard
- Hardmost played10–567%
- Clay4–544%
- Surface TBD1–150%
Elo rating
Full leaderboard1534#1012 on tour
Peak 1713 in 2026 · from 26 rated matches
- Hard
1580+46 vs overall
15 matches
Computed from every completed ATP singles match since 2008, not from ranking points: beating a strong player is worth more than beating a weak one. A surface figure is this player’s overall rating plus an adjustment learned only from their matches on that surface.
Match results
8 matches· 2025
- LEric Vanshelboim2025· M25 The Hague · R16Clay—
- WAmaury Raynel2025· M25 The Hague · R32Clay—
- LTrevor Svajda2025· ITF M15 San Diego, CA 3 Men · FHard—
- WSavriyan Danilov2025· ITF M15 San Diego, CA 3 Men · SFHard—
- WQuinn Vandecasteele2025· ITF M15 San Diego, CA 3 Men · QFHard—
- WHudson Rivera2025· ITF M15 San Diego, CA 3 Men · R16Hard—
- LAndrew Fenty2025· ITF M15 San Diego, CA 2 Men · R16Hard—
- WWilliam Kleege2025· ITF M15 San Diego, CA 2 Men · R32Hard—