Stian Klaassen vs Theodore DeanPrediction, Head-to-Head Results, and Stats
Stian Klaassen and Theodore Dean have met 1 time since 2026; Stian Klaassen leads 1–0. Across all meetings Klaassen has taken 2 sets to Dean's 0. Their most recent meeting: Stian Klaassen won at M15 Rancho Santa Fe (2026).
Spread & Straight-Sets Form
Completed best-of-3 matches · Last 12 months
| Indicator | Klaassen | Dean | ||
|---|---|---|---|---|
| Indicator | Stian Klaassen | Theodore Dean | ||
| Wins in straight sets | 89% | 8/9 | 52% | 11/21 |
| Wins a set when losing | 38% | 3/8 | 33% | 5/15 |
| Goes to a deciding set | 24% | 4/17 | 42% | 15/36 |
| Covers −1.5 sets as favorite | 63% | 5/8 | 40% | 6/15 |
| Covers +1.5 sets as underdog | 71% | 5/7 | 47% | 8/17 |
| Tiebreak sets won | 50% | 1/2 | 62% | 8/13 |
| Wins after taking set 1 | 82% | 9/11 | 100% | 14/14 |
| Wins 2-0 after taking set 1 | 73% | 8/11 | 79% | 11/14 |
Colored rows are higher-is-better: green above 50%, red below. Favorite/underdog set by book odds; cover rows count only matches with odds on record. Head-to-head: 1 of 1 completed meetings ended in straight sets (Klaassen 1, Dean 0).
Style Matchup
Playing styles and historical archetype record
Klaassen
⚙️ Grinder
Dean
🧱 The Wall
Matchup analysis
⚙️ Grinder vs 🧱 The Wall is historically tight (50% vs 50%, 98 matches). Neither style has a clear edge, so form, surface, and the head-to-head matter most.
Previous meetings
1 career meeting, newest first
Jul 9, 2026
M15 Rancho Santa Fe
H Hard · 2nd Round
Prop Research
Hit rates on common betting markets · Last 90 days
| Outcome | Klaassen | Dean | ||
|---|---|---|---|---|
| Outcome | Stian Klaassen | Theodore Dean | ||
| 1 or more | 83% | 5/6 | 50% | 3/6 |
| 3 or more | 67% | 4/6 | 33% | 2/6 |
| 5 or more | 50% | 3/6 | 0% | 0/6 |
| 10 or more | 0% | 0/6 | 0% | 0/6 |
| 15 or more | 0% | 0/6 | 0% | 0/6 |
| 20 or more | 0% | 0/6 | 0% | 0/6 |
Player ROI
Hypothetical if you put 1u on each player to win every one of their matches · Last 90 days
| Metric | Klaassen | Dean |
|---|---|---|
| W-L | 3–4 | 2–4 |
| Avg odds | 1.71 | 2.49 |
| ROI % | -37.7% | -51.5% |
| Units P/L | -2.64u | -3.09u |
Small sample: ROI stabilizes with more matches; fewer than 10 in the window is noisy.
Common opponents
Results vs. opponents both players faced · Last 12 months
Across 2 shared opponents, both Klaassen and Dean posted a 50% win rate.
| Opponent | Klaassen | Dean |
|---|---|---|
| Bjorn Schoemacher | W 60 61 | W 61 63 |
| Spencer Johnson | L 26 26 | L 16 67 |
Recent Form
Last five matches per player
Emilien Demanet
M25 Oldenzaal · 2nd Round
Aug 27
Gray Voelzke
M25 Oldenzaal · 1st Round
Aug 26
Noah Schlagenhauf
M15 Lambermont · 1st Round
Aug 19
Arvid Nordquist
M15 Turku · 1st Round
Aug 11
Benoit Torcq
M15 Eupen · 2nd Round
Aug 6
Marlon Vankan
M15 Eupen · 1st Round
Aug 5
Bjorn Schoemacher
M15 Eupen · 3rd Round Qualifying
Aug 4
Christopher Patzanovsky
M15 Eupen · 2nd Round Qualifying
Aug 3
Pablo Aunion
M25 Gijon · 1st Round
Sep 8
Martin Van Der Meerschen
M15 Madrid · 1st Round
Sep 2
Samuele Pieri
M25 Maribor · 1st Round
Aug 25
Marcel Zielinski
M15 Mistelbach · Quarterfinals
Aug 21
Luc Wieland
M15 Mistelbach · 2nd Round
Aug 20
Aadarsh Tripathi
M15 Mistelbach · 1st Round
Aug 19
Stian Klaassen
M15 Rancho Santa Fe · 2nd Round
Jul 9
Bryce Nakashima
M15 Rancho Santa Fe · 1st Round
Jul 8
Win rate
Matches, sets and games won · Last 12 months · 17–36 matches
| Metric | Klaassen | Dean |
|---|---|---|
| Matches won | 53% | 58% |
| Sets won | 55% | 54% |
| Games won | 52% | 51% |
Record by tier
Head-to-head record by tournament tier
| Stage | Klaassen | Dean |
|---|---|---|
| ITF M15 | 1 | 0 |
By surface
Head-to-head record per surface
| Surface | Klaassen | Dean |
|---|---|---|
| Hard | 1 | 0 |
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