ATP Tour
Stian Klaassen
#1336
ATP World Ranking - 7 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
🏃 Pusher71%
🧱 The Wall54%
Weak against
🎯 Baseliner44%
🤖 Servebot44%
Player Overview
Age
23
Career
7
Wins
8
Losses
46.7%
Win %
0
Titles
Win / Loss by Year
Career record broken down by surface
| Year | Summary | Clay | Hard | Grass |
|---|---|---|---|---|
| 2026 | 6/7 | 1/2 | 5/5 | - |
| Career | 6/7 | 1/2 | 5/5 | - |
Serve & Return
Averages · Last 90 days (13 matches)
Serve
1st Serve In-
1st Serve Pts Won-
2nd Serve Pts Won-
Break Points Saved-
Aces / Match3.6
Double Faults / Match3.1
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 |
| Jul 11, 2026 | M15 Rancho Santa Fe | Semifinals | Spencer Johnson | Hard | 26 26 | L |
| Jul 10, 2026 | M15 Rancho Santa Fe | Quarterfinals | Jack Anthrop | Hard | 64 57 64 | W |
| Jul 9, 2026 | M15 Rancho Santa Fe | 2nd Round | Theodore Dean | Hard | 63 64 | W |
| Jul 8, 2026 | M15 Rancho Santa Fe | 1st Round | William Zhang | Hard | 60 60 | W |
Stian Klaassen FAQ
Stian Klaassen is ranked #1336 on the ATP tour with 7 ranking points.
Stian Klaassen is from Netherlands.
Stian Klaassen is 23 years old.
Stian Klaassen has a career win-loss record of 7-8 (47% win rate).
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 1-2 (33%).
Stian Klaassen has won 5 of the last 10 completed matches (50%).