Prediction: Seo Yun Choi vs Ikumi Yamazaki
Our model (Elo on hard, opponent-adjusted) gives 55% to Ikumi Yamazaki; the market gives 69% to Ikumi Yamazaki (odds 1.36).
Recent form leaves Seo Yun Choi with 6 wins and 4 losses over 10 games; Ikumi Yamazaki has piled up 6-4 in the same span.
| Seo Yun Choi | Ikumi Yamazaki | |
|---|---|---|
| Our model | 45% | 55% |
| Market | 31% | 69% |
The bar above blends our model with the market: where our probability diverges most from the odds is where the model sees the widest gap.
Match keys
- Note: Ikumi Yamazaki makes many double faults (4.4/match).
Statistics
| Seo Yun Choi | Ikumi Yamazaki | |
|---|---|---|
| Win % | 50% | 70% |
| Win % · Hard | 40% (5) | 70% (10) |
| Sets (G-P) | 1.1-1.1 | 1.5-0.9 |
| Games (G-P) | 10.3-9.1 | 11.7-9.8 |
| Aces | 0.9 | 1.3 |
| Double faults | 1.5 | 4.4 |
| 1st serve % | 57.3% | 63.2% |
| Break % | 55.6% | 49.5% |
Last 10 matches played
Last matches of each player (sets and games). W = win, L = loss. Common opponents to both are in blue.
Seo Yun Choi
Swipe the table sideways →
| Date | Opponent | Sets | Games | Res. |
|---|---|---|---|---|
| 08/07 | Rira Kosaka W15 Luan · ~Hard |
2-0 | 12-5 | W |
| 07/07 | Jasmine Li W15 Luan · ~Hard |
2-0 | 12-3 | W |
| 25/06 | Miho Kuramochi W15 Sapporo |
0-2 | 7-13 | L |
| 24/06 | Aoi Watanabe W15 Sapporo |
2-1 | 14-7 | W |
| 18/06 | Ayumi Miyamoto W15 Sapporo |
0-2 | 9-13 | L |
| 17/06 | Riyo Yoshida W15 Sapporo |
2-0 | 12-5 | W |
| 16/06 | Yui Ohwaki W15 Sapporo |
2-0 | 12-4 | W |
| 20/05 | BoYoung Jeong W35 Changwon · ~Hard |
0-2 | 5-12 | L |
| 12/05 | Amy Zhu W35 Andong · ~Hard |
0-2 | 6-12 | L |
| 06/05 | Hanna Chang W35 Changwon · ~Hard |
1-2 | 14-17 | L |
Ikumi Yamazaki
Swipe the table sideways →
| Date | Opponent | Sets | Games | Res. |
|---|---|---|---|---|
| 08/07 | Xiaowei Li W15 Luan · ~Hard |
2-0 | 12-1 | W |
| 02/07 | Anna Snigireva W15 Maanshan · ~Hard |
0-2 | 8-13 | L |
| 30/06 | Ke Ren W15 Maanshan · ~Hard |
2-0 | 12-7 | W |
| 24/06 | Aishi Das W35 Taipei · ~Hard |
0-2 | 6-12 | L |
| 17/06 | Hiromi Abe W35 Taipei · ~Hard |
1-2 | 11-14 | L |
| 14/06 | Hikaru Sato W15 Tokyo · ~Hard |
2-1 | 14-14 | W |
| 13/06 | Mayuka Aikawa W15 Tokyo · ~Hard |
2-0 | 12-5 | W |
| 12/06 | Natsuki Yoshimoto W15 Tokyo · ~Hard |
2-1 | 15-13 | W |
| 11/06 | Nao Nishino W15 Tokyo · ~Hard |
2-1 | 14-12 | W |
| 10/06 | Monique Barry W15 Tokyo · ~Hard |
2-0 | 13-7 | W |
Frequently asked questions
Who is the favourite in Seo Yun Choi vs Ikumi Yamazaki?
Our model gives 63% to Ikumi Yamazaki, using surface Elo on hard.
What is the prediction based on?
On an Elo model by surface (hard) adjusted for opponent quality, compared with the market odds.

