ATP Tour
Stian Klaassen
Back after 7w off#1311
ATP World Ranking - 8 pts
Player Archetype
⚙️ Grinder
Wears opponents down with relentless consistency and deep margins. Doesn't flash the most winners but rarely misses, extending rallies until the opponent cracks under pressure.
Relentless consistencyDeep court positioningHigh rally toleranceMental fortitude
Strong against
⚔️ The Gladiator51%
🛡️ The Spoiler51%
Weak against
🤖 Servebot44%
💥 Big Hitter45%
Player Overview
Age
23
Career-High Ranking
#1068 (2025-07-28)
Career
10
Wins
8
Losses
55.6%
Win %
0
Titles
Win / Loss by Year
Career record broken down by surface
| Year | Summary | Clay | Hard | Grass |
|---|---|---|---|---|
| 2026 | 10/8 | 5/3 | 5/5 | - |
| Career | 10/8 | 5/3 | 5/5 | - |
Serve & Return
Averages · Last 90 days (9 matches)
Serve
1st Serve In-
1st Serve Pts Won-
2nd Serve Pts Won-
Break Points Saved-
Aces / Match3.8
Double Faults / Match2.8
Avg 1st Serve-
Max Serve Speed-
Return
1st Return Pts Won-
2nd Return Pts Won-
Break Points Converted-
Rally
Winners / Match-
Unforced Errors / Match-
Net Pts Won %-
Total Pts Won %-
Recent Matches
Last 10 results
FormLWLLL
| Date | Tournament | Round | Opponent | Surface | Score | Result |
|---|---|---|---|---|---|---|
| Aug 27, 2026 | M25 Oldenzaal | 2nd Round | Emilien Demanet | Clay | 64 46 16 | L |
| Aug 26, 2026 | M25 Oldenzaal | 1st Round | Gray Voelzke | Clay | 64 62 | W |
| Aug 19, 2026 | M15 Lambermont | 1st Round | Noah Schlagenhauf | Clay | 36 16 | L |
| Aug 11, 2026 | M15 Turku | 1st Round | Arvid Nordquist | Hard | 67 46 | L |
| Aug 6, 2026 | M15 Eupen | 2nd Round | Benoit Torcq | Clay | 46 16 | L |
| Aug 5, 2026 | M15 Eupen | 1st Round | Marlon Vankan | Clay | 76 63 | W |
| Aug 4, 2026 | M15 Eupen | 3rd Round Qualifying | Bjorn Schoemacher | Clay | 60 61 | W |
| Aug 3, 2026 | M15 Eupen | 2nd Round Qualifying | Christopher Patzanovsky | Clay | 61 61 | W |
| Aug 2, 2026 | M15 Eupen | 1st Round Qualifying | Sammy Guinau | Clay | 64 64 | W |
| Jul 11, 2026 | M15 Rancho Santa Fe | Semifinals | Spencer Johnson | Hard | 26 26 | L |
Stian Klaassen FAQ
Stian Klaassen is ranked #1311 on the ATP tour with 8 ranking points. The career-high ranking is #1068, reached in 2025.
Stian Klaassen is from Netherlands.
Stian Klaassen is 23 years old.
Stian Klaassen has a career win-loss record of 10-8 (56% win rate).
Stian Klaassen: a career-high ranking of #1068 in 2025 and 10 career wins.
Stian Klaassen's strongest surface by win rate is hard, with a 5-5 record (50%). Full career splits: hard 5-5 (50%) and clay 5-3 (63%).
Stian Klaassen has won 5 of the last 10 completed matches (50%).