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
15 matches· 2026
- LEmilien Demanet2026· ITF M25 Oldenzaal Men · R16Clay—
- WGray Voelzke2026· ITF M25 Oldenzaal Men · R32Clay—
- LNoah Schlagenhauf2026· M15 Lambermont · R32Clay—
- LArvid Nordquist2026· M15 Turku · R32Hard—
- LBenoit Torcq2026· ITF M15 Eupen Men · R16Clay—
- WMarlon Vankan2026· ITF M15 Eupen Men · R32Clay—
- WBjorn Schoemacher2026· ITF M15 Eupen Men · QSurface TBD—
- LSpencer Johnson2026· ITF M15 Rancho Santa Fe Men · SFHard—
- WJack Anthrop2026· ITF M15 Rancho Santa Fe Men · QFHard—
- WTheodore Dean2026· ITF M15 Rancho Santa Fe Men · R16Hard—
- WWilliam Zhang2026· ITF M15 Rancho Santa Fe Men · R32Hard—
- WMarko Miladinovic2026· ITF M15 San Diego, CA Men · R32Hard—
- LLuca Pow2026· M15 Claremont (Usa) · R32Surface TBD—
- LNoah Zamora2026· ITF M15 Irvine, CA Men · R16Hard—
- WEvan Bynoe2026· ITF M15 Irvine, CA Men · R32Hard—