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 | 86% | 6/7 | 50% | 9/18 |
| Wins a set when losing | 38% | 3/8 | 25% | 3/12 |
| Goes to a deciding set | 27% | 4/15 | 40% | 12/30 |
| Covers −1.5 sets as favorite | 63% | 5/8 | 36% | 4/11 |
| Covers +1.5 sets as underdog | 67% | 4/6 | 50% | 8/16 |
| Tiebreak sets won | 50% | 1/2 | 58% | 7/12 |
| Wins after taking set 1 | 78% | 7/9 | 100% | 12/12 |
| Wins 2-0 after taking set 1 | 67% | 6/9 | 75% | 9/12 |
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
The ⚙️ Grinder archetype wins about 54% vs 🧱 The Wall across 318 matches in our dataset: a stylistic lean toward Stian Klaassen.
Grinder players often use relentless consistency and deep court positioning to pressure the the wall's elite returner.
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 | 85% | 11/13 | 27% | 3/11 |
| 3 or more | 69% | 9/13 | 18% | 2/11 |
| 5 or more | 39% | 5/13 | 0% | 0/11 |
| 10 or more | 8% | 1/13 | 0% | 0/11 |
| 15 or more | 0% | 0/13 | 0% | 0/11 |
| 20 or more | 0% | 0/13 | 0% | 0/11 |
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 | 7–7 | 5–6 |
| Avg odds | 1.94 | 2.60 |
| ROI % | -19.0% | -5.3% |
| Units P/L | -2.66u | -0.58u |
Travel
Last 30 days
| Metric | Klaassen | Dean |
|---|---|---|
| Countries | 3 | 2 |
| Events | 4 | 2 |
| Matches | 6 | 4 |
| Distance | — | — |
| Route | BEL → FIN → BEL → NED | AUT → SLO |
Host country from the tournament each match was played in, over the last 30 days. Route is the order of countries visited; consecutive stops in the same country are shown once. Distance is the great-circle total between host cities, shown only when every stop in the window is geocoded. A rough fatigue signal, not a headline stat.
Common opponents
Results vs. opponents both players faced · Last 12 months
Across 1 shared opponent, both Klaassen and Dean posted a 0% win rate.
| Opponent | Klaassen | Dean |
|---|---|---|
| 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
Spencer Johnson
M15 Rancho Santa Fe · Semifinals
Jul 11
Jack Anthrop
M15 Rancho Santa Fe · Quarterfinals
Jul 10
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
Aidan Kim
M15 San Diego · Quarterfinals
Jul 3
Rafael De Alba
M15 San Diego · 2nd Round
Jul 2
Win rate
Matches, sets and games won · Last 12 months · 15–30 matches
| Metric | Klaassen | Dean |
|---|---|---|
| Matches won | 47% | 60% |
| Sets won | 50% | 54% |
| Games won | 50% | 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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