Alexander Chang vs Keisuke SaitohPrediction, Head-to-Head Results, and Stats
Alexander Chang and Keisuke Saitoh have met 1 time since 2026; Alexander Chang leads 1–0. Across all meetings Chang has taken 2 sets to Saitoh's 0. Their most recent meeting: Alexander Chang won at M15 Bali (2026).
Spread & Straight-Sets Form
Completed best-of-3 matches · Last 12 months
| Indicator | Chang | Saitoh | ||
|---|---|---|---|---|
| Indicator | Alexander Chang | Keisuke Saitoh | ||
| Wins in straight sets | 80% | 4/5 | 68% | 27/40 |
| Wins a set when losing | 67% | 2/3 | 13% | 3/24 |
| Goes to a deciding set | 38% | 3/8 | 25% | 16/64 |
| Covers −1.5 sets as favorite | 33% | 1/3 | 54% | 15/28 |
| Covers +1.5 sets as underdog | 100% | 3/3 | 59% | 16/27 |
| Tiebreak sets won | 0% | 0/3 | 53% | 8/15 |
| Wins after taking set 1 | 80% | 4/5 | 97% | 34/35 |
| Wins 2-0 after taking set 1 | 80% | 4/5 | 77% | 27/35 |
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. Small sample — read with care. Head-to-head: 1 of 1 completed meetings ended in straight sets (Chang 1, Saitoh 0).
Previous meetings
1 career meeting, newest first
Jul 23, 2026
M15 Bali
H Hard · 2nd Round
Prop Research
Hit rates on common betting markets · Last 90 days
| Outcome | Chang | Saitoh | ||
|---|---|---|---|---|
| Outcome | Alexander Chang | Keisuke Saitoh | ||
| 1 or more | 100% | 6/6 | 88% | 7/8 |
| 3 or more | 100% | 6/6 | 38% | 3/8 |
| 5 or more | 67% | 4/6 | 13% | 1/8 |
| 10 or more | 17% | 1/6 | 0% | 0/8 |
| 15 or more | 0% | 0/6 | 0% | 0/8 |
| 20 or more | 0% | 0/6 | 0% | 0/8 |
Player ROI
Hypothetical if you put 1u on each player to win every one of their matches · Last 90 days
| Metric | Chang | Saitoh |
|---|---|---|
| W-L | 4–2 | 4–4 |
| Avg odds | 2.27 | 1.68 |
| ROI % | +53.3% | -24.9% |
| Units P/L | +3.20u | -1.99u |
Small sample: ROI stabilizes with more matches; fewer than 10 in the window is noisy.
Travel
Last 30 days
| Metric | Chang | Saitoh |
|---|---|---|
| Countries | — | 2 |
| Events | — | 3 |
| Matches | — | 3 |
| Distance | — | — |
| Route | — | INA → TPE |
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 2 shared opponents, both Chang and Saitoh posted a 50% win rate.
| Opponent | Chang | Saitoh |
|---|---|---|
| Sanhui Shin | W 64 62 | W 67 60 75 |
| Yusuke Takahashi | L 36 63 67 | L 67 06 |
Recent Form
Last five matches per player
Yusuke Takahashi
M15 Bali · 2nd Round
Jul 30
Shanker Heisnam
M15 Bali · 1st Round
Jul 29
Thanaphat Boosarawongse
M15 Bali · Semifinals
Jul 25
Sanhui Shin
M15 Bali · Quarterfinals
Jul 24
Keisuke Saitoh
M15 Bali · 2nd Round
Jul 23
Azuma Visaya
M15 Bali · 1st Round
Jul 22
Max Basing
M25 Bali · Quarterfinals
Sep 5
Grigoriy Lomakin
M25 Bali · Round of 16
Sep 4
Matthew Dellavedova
M25 Taipei · 1st Round
Aug 26
Tsung-Hao Huang
M25 Taipei · 1st Round
Aug 18
Sam Ryan Ziegann
M15 Bali · Semifinals
Aug 1
Sanhui Shin
M15 Bali · Quarterfinals
Jul 31
Rafalentino Ali Da Costa
M15 Bali · 2nd Round
Jul 30
Rafalentino Ali Da Costa
M15 Bali · 2nd Round
Jul 30
Daniel Bagnolini
M15 Bali · 1st Round
Jul 28
Alexander Chang
M15 Bali · 2nd Round
Jul 23
Win rate
Matches, sets and games won · Last 12 months · 8–64 matches
| Metric | Chang | Saitoh |
|---|---|---|
| Matches won | 63% | 63% |
| Sets won | 63% | 58% |
| Games won | 55% | 53% |
Record by tier
Head-to-head record by tournament tier
| Stage | Chang | Saitoh |
|---|---|---|
| ITF M15 | 1 | 0 |
By surface
Head-to-head record per surface
| Surface | Chang | Saitoh |
|---|---|---|
| Hard | 1 | 0 |
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