Seiya Nakanishi vs Tai SachPrediction, Head-to-Head Results, and Stats
Seiya Nakanishi and Tai Sach have met 1 time since 2026; Tai Sach leads 1–0. Across all meetings Nakanishi has taken 0 sets to Sach's 2. Their most recent meeting: Tai Sach won at M15 Harmon (2026).
Spread & Straight-Sets Form
Completed best-of-3 matches · Last 12 months
| Indicator | Nakanishi | Sach | ||
|---|---|---|---|---|
| Indicator | Seiya Nakanishi | Tai Sach | ||
| Wins in straight sets | 50% | 3/6 | 70% | 28/40 |
| Wins a set when losing | 8% | 1/12 | 42% | 16/38 |
| Goes to a deciding set | 22% | 4/18 | 36% | 28/78 |
| Covers −1.5 sets as favorite | — | 60% | 21/35 | |
| Covers +1.5 sets as underdog | 29% | 2/7 | 59% | 22/37 |
| Tiebreak sets won | 50% | 1/2 | 53% | 10/19 |
| Wins after taking set 1 | 80% | 4/5 | 80% | 36/45 |
| Wins 2-0 after taking set 1 | 60% | 3/5 | 62% | 28/45 |
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 (Nakanishi 0, Sach 1).
Style Matchup
Playing styles and historical archetype record
Nakanishi
🏃 Pusher
Sach
🪃 Counterpuncher
Previous meetings
1 career meeting, newest first
Jun 3, 2026
M15 Harmon
H Hard · 1st Round
Prop Research
Hit rates on common betting markets · Last 90 days
| Outcome | Nakanishi | Sach | ||
|---|---|---|---|---|
| Outcome | Seiya Nakanishi | Tai Sach | ||
| 1 or more | 60% | 3/5 | 100% | 14/14 |
| 3 or more | 20% | 1/5 | 36% | 5/14 |
| 5 or more | 0% | 0/5 | 21% | 3/14 |
| 10 or more | 0% | 0/5 | 14% | 2/14 |
| 15 or more | 0% | 0/5 | 0% | 0/14 |
| 20 or more | 0% | 0/5 | 0% | 0/14 |
Player ROI
Hypothetical if you put 1u on each player to win every one of their matches · Last 90 days
| Metric | Nakanishi | Sach |
|---|---|---|
| W-L | 2–3 | 5–9 |
| Avg odds | 9.06 | 1.93 |
| ROI % | +63.6% | -54.7% |
| Units P/L | +3.18u | -7.66u |
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
Sach has a higher win rate against shared opponents (100% vs Nakanishi's 50%).
| Opponent | Nakanishi | Sach |
|---|---|---|
| Kazushi | W 60 76 | W 60 67 61 |
| Makoto Ochi | L 46 26 | W 63 62 |
Recent Form
Last five matches per player
Kuan-Yi Lee
M25 Sapporo · 2nd Round
Sep 10
Kazushi
M25 Sapporo · 1st Round
Sep 8
Makoto Ochi
M25 Sapporo · 3rd Round Qualifying
Sep 7
Taki Adachi
M25 Sapporo · 1st Round Qualifying
Sep 6
Naoya Honda
M25 Urayasu · 1st Round
Sep 2
Alejandro Hayen
M25 Urayasu · 3rd Round Qualifying
Aug 31
Iko Angelo
M25 Urayasu · 1st Round Qualifying
Aug 30
Kazuma Kawachi
M15 Tokyo · 1st Round Qualifying
Jul 6
Casey Hoole
M25 Darwin · 2nd Round
Oct 8
Darcy Nicholls
M25 Darwin · 1st Round
Oct 7
Jeremy Beale
M25 Darwin · 1st Round
Sep 30
Filip Peliwo
Phan Thiet 4 Challenger · 1st Round
Sep 15
Arthur Weber
Phan Thiet 3 Challenger · 2nd Round
Sep 10
Thanh Minh Truong
Phan Thiet 3 Challenger · 1st Round
Sep 8
Matthew Dellavedova
M25 Taipei · 2nd Round
Aug 27
Mukund Sasikumar
M25 Taipei · 1st Round
Aug 26
Win rate
Matches, sets and games won · Last 12 months · 18–78 matches
| Metric | Nakanishi | Sach |
|---|---|---|
| Matches won | 33% | 51% |
| Sets won | 33% | 52% |
| Games won | 43% | 50% |
Record by tier
Head-to-head record by tournament tier
| Stage | Nakanishi | Sach |
|---|---|---|
| ITF M15 | 0 | 1 |
By surface
Head-to-head record per surface
| Surface | Nakanishi | Sach |
|---|---|---|
| Hard | 0 | 1 |
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