Colin Sinclair vs Jumpei YamasakiPrediction, Head-to-Head Results, and Stats
Colin Sinclair and Jumpei Yamasaki have met 1 time since 2026; Jumpei Yamasaki leads 1–0. Across all meetings Sinclair has taken 0 sets to Yamasaki's 2. Their most recent meeting: Jumpei Yamasaki won at M15 Tokyo (2026).
Spread & Straight-Sets Form
Completed best-of-3 matches · Last 12 months
| Indicator | Sinclair | Yamasaki | ||
|---|---|---|---|---|
| Indicator | Colin Sinclair | Jumpei Yamasaki | ||
| Wins in straight sets | 60% | 27/45 | 63% | 10/16 |
| Wins a set when losing | 38% | 12/32 | 21% | 3/14 |
| Goes to a deciding set | 39% | 30/77 | 30% | 9/30 |
| Covers −1.5 sets as favorite | 45% | 22/49 | 45% | 5/11 |
| Covers +1.5 sets as underdog | 62% | 16/26 | 38% | 5/13 |
| Tiebreak sets won | 44% | 21/48 | 40% | 4/10 |
| Wins after taking set 1 | 83% | 35/42 | 93% | 13/14 |
| Wins 2-0 after taking set 1 | 64% | 27/42 | 71% | 10/14 |
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 (Sinclair 0, Yamasaki 1).
Style Matchup
Playing styles and historical archetype record
Sinclair
🤖 Servebot
Yamasaki
💥 Big Hitter
Matchup analysis
🤖 Servebot vs 💥 Big Hitter is historically tight (51% vs 49%, 4,932 matches). Neither style has a clear edge, so form, surface, and the head-to-head matter most.
Previous meetings
1 career meeting, newest first
Jun 10, 2026
M15 Tokyo
H Hard · 1st Round
Player ROI
Hypothetical if you put 1u on each player to win every one of their matches · Last 90 days
| Metric | Sinclair | Yamasaki |
|---|---|---|
| W-L | 11–10 | 0–2 |
| Avg odds | 1.94 | 5.40 |
| ROI % | -4.8% | -100.0% |
| Units P/L | -1.00u | -2.00u |
Small sample: ROI stabilizes with more matches; fewer than 10 in the window is noisy.
Travel
Last 30 days
| Metric | Sinclair | Yamasaki |
|---|---|---|
| Countries | 1 | — |
| Events | 1 | — |
| Matches | 1 | — |
| Distance | 0 mi · 0 km | — |
| Route | CHN | — |
Host country from each tournament in the last 30 days, including the current event even when a player arrived on a bye. 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
Yamasaki has a higher win rate against shared opponents (60% vs Sinclair's 20%).
| Opponent | Sinclair | Yamasaki |
|---|---|---|
| Hayden Jones | L 67 67 | W 61 76 |
| Takuya Kumasaka | L 26 67 | L 26 26 |
| Koki Matsuda | L 36 36 | L 26 67 |
| Naoki Nakagawa | L 67 64 46 | W 63 61 |
| Josh Gilbert | W 60 60 | W 60 60 |
Recent Form
Last five matches per player
Hayden Jones
M25 Darwin · 2nd Round
Oct 8
Lachlan Vickery
M25 Darwin · 1st Round
Oct 7
Casey Hoole
M25 Darwin · Quarterfinals
Oct 2
Chen Dong
M25 Darwin · 2nd Round
Oct 1
Stefan Vujic
M25 Darwin · 1st Round
Sep 30
Zijiang Yang
M25 Yinchuan · 1st Round
Sep 23
Rio Noguchi
Guangzhou Challenger · 2nd Round
Sep 16
Linang Xiao
Guangzhou Challenger · 1st Round
Sep 14
Martin Borisiouk
Wuning 3 Challenger · 1st Round Qualifying
Oct 4
Max Purcell
M15 Luan · 1st Round
Sep 29
Taisei Ichikawa
M15 Bali · 1st Round
Jul 21
Jangjun Kim
M15 Tokyo · Quarterfinals
Jun 12
Hayden Jones
M15 Tokyo · 2nd Round
Jun 11
Colin Sinclair
M15 Tokyo · 1st Round
Jun 10
Asahi Harazaki
M15 Tokyo · 3rd Round Qualifying
Jun 8
Natsuki Yamamoto
M15 Tokyo · 1st Round Qualifying
Jun 7
Win rate
Matches, sets and games won · Last 12 months · 30–77 matches
| Metric | Sinclair | Yamasaki |
|---|---|---|
| Matches won | 58% | 53% |
| Sets won | 55% | 51% |
| Games won | 52% | 52% |
Record by tier
Head-to-head record by tournament tier
| Stage | Sinclair | Yamasaki |
|---|---|---|
| ITF M15 | 0 | 1 |
By surface
Head-to-head record per surface
| Surface | Sinclair | Yamasaki |
|---|---|---|
| Hard | 0 | 1 |
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