Jan Kumstat vs Yuichiro InuiPrediction, Head-to-Head Results, and Stats
Jan Kumstat and Yuichiro Inui have met 1 time since 2026; Jan Kumstat leads 1–0. Across all meetings Kumstat has taken 2 sets to Inui's 0. Their most recent meeting: Jan Kumstat won at M25 Ollersbach (2026).
Spread & Straight-Sets Form
Completed best-of-3 matches · Last 12 months
| Indicator | Kumstat | Inui | ||
|---|---|---|---|---|
| Indicator | Jan Kumstat | Yuichiro Inui | ||
| Wins in straight sets | 74% | 31/42 | 50% | 1/2 |
| Wins a set when losing | 39% | 7/18 | 24% | 6/25 |
| Goes to a deciding set | 30% | 18/60 | 26% | 7/27 |
| Covers −1.5 sets as favorite | 65% | 24/37 | 17% | 1/6 |
| Covers +1.5 sets as underdog | 67% | 12/18 | 19% | 3/16 |
| Tiebreak sets won | 52% | 11/21 | 15% | 2/13 |
| Wins after taking set 1 | 88% | 35/40 | 20% | 1/5 |
| Wins 2-0 after taking set 1 | 78% | 31/40 | 20% | 1/5 |
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 (Kumstat 1, Inui 0).
Style Matchup
Playing styles and historical archetype record
Kumstat
👑 The Complete Package
Inui
🤖 Servebot
Matchup analysis
👑 The Complete Package vs 🤖 Servebot is historically tight (49% vs 51%, 616 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 22, 2026
M25 Ollersbach
C Clay · 1st Round
Prop Research
Hit rates on common betting markets · Last 90 days
| Outcome | Kumstat | Inui | ||
|---|---|---|---|---|
| Outcome | Jan Kumstat | Yuichiro Inui | ||
| 1 or more | 100% | 28/28 | 100% | 4/4 |
| 3 or more | 96% | 27/28 | 50% | 2/4 |
| 5 or more | 86% | 24/28 | 25% | 1/4 |
| 10 or more | 39% | 11/28 | 0% | 0/4 |
| 15 or more | 7% | 2/28 | 0% | 0/4 |
| 20 or more | 4% | 1/28 | 0% | 0/4 |
Player ROI
Hypothetical if you put 1u on each player to win every one of their matches · Last 90 days
| Metric | Kumstat | Inui |
|---|---|---|
| W-L | 22–7 | 0–5 |
| Avg odds | 1.68 | 6.81 |
| ROI % | +25.4% | -100.0% |
| Units P/L | +7.36u | -5.00u |
Small sample: ROI stabilizes with more matches; fewer than 10 in the window is noisy.
Travel
Last 30 days
| Metric | Kumstat | Inui |
|---|---|---|
| Countries | 2 | — |
| Events | 3 | — |
| Matches | 11 | — |
| Distance | 593 mi · 954 km | — |
| Route | CZE → GER → CZE | — |
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 Kumstat and Inui posted a 100% win rate.
| Opponent | Kumstat | Inui |
|---|---|---|
| Szymon Karpinski | W 67 76 75 | W 76 61 |
Recent Form
Last five matches per player
Chun-Hsin Tseng
Prague Challenger · Final
Aug 22
Filip Cristian Jianu
Prague Challenger · Semifinals
Aug 21
Maxim Mrva
Prague Challenger · Quarterfinals
Aug 20
Sumit Nagal
Prague Challenger · 2nd Round
Aug 19
Petr Brunclik
Prague Challenger · 1st Round
Aug 18
Marvin Moeller
Hamburg Challenger · Final
Aug 16
Matheus Pucinelli De Almeida
Hamburg Challenger · Semifinals
Aug 15
Max Houkes
Hamburg Challenger · 2nd Round
Aug 13
Jan Kumstat
M25 Ollersbach · 1st Round
Jul 22
Jelle Sels
M25 Nivelles · 1st Round
Jun 30
Jelle Sels
Futures 2026
Jun 30
David Tixhon
Futures 2026
Jun 29
Max Wiskandt
M25 Brussels · 1st Round
Jun 24
Yan Cheng Chen
M15 Luan · 1st Round
Jun 3
Ye Chen
Futures 2026
Jun 3
Fanming Meng
M15 Luan · 1st Round
May 27
Win rate
Matches, sets and games won · Last 12 months · 27–61 matches
| Metric | Kumstat | Inui |
|---|---|---|
| Matches won | 69% | 7% |
| Sets won | 65% | 16% |
| Games won | 54% | 41% |
Record by tier
Head-to-head record by tournament tier
| Stage | Kumstat | Inui |
|---|---|---|
| ITF M25 | 1 | 0 |
By surface
Head-to-head record per surface
| Surface | Kumstat | Inui |
|---|---|---|
| Clay | 1 | 0 |
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