Tennis · M15 Wuning · 09/09, 04:00
Prediction: Hiromasa Koyama vs Yue Xia
Team pages: Hiromasa Koyama
Prediction summary
Winner
Hiromasa Koyama
Yue Xia
Estimated games
19.7
Recent form · 10 last
Hiromasa Koyama
5-5 (W-L)
Yue Xia
1-9 (W-L)
Our model (Elo) vs Market
Rating Elo · Hiromasa Koyama 1495 · Yue Xia 1384
| Hiromasa Koyama | Yue Xia | |
|---|---|---|
| Our model | 65% | 35% |
| Market | 86% | 14% |
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
- Our model (surface Elo, opponent-adjusted) favours Hiromasa Koyama (rating 1495 vs 1384).
- Hiromasa Koyama is in better form: 40% recent wins.
Statistics
| Hiromasa Koyama | Yue Xia | |
|---|---|---|
| Win % | 40% | 10% |
| Win % · Hard | 40% (10) | 10% (10) |
| Sets (G-P) | 1-1.4 | 0.3-1.8 |
| Games (G-P) | 9.9-11 | 6.1-12 |
| Aces | 0.8 | 0.7 |
| Double faults | 3.7 | 1.4 |
| 1st serve % | 61.1% | 53.7% |
| Break % | 51.4% | 31.5% |
Estimated total games (ours)
19.7
Last 10 matches played
Last matches of each player (sets and games). W = win, L = loss. Common opponents to both are in blue.
Hiromasa Koyama
Swipe the table sideways →
| Date | Opponent | Sets | Games | Res. |
|---|---|---|---|---|
| 03/09 | Qian Sun M15 Wuning · ~Hard |
0-2 | 8-12 | L |
| 02/09 | Lachlan Vickery M15 Wuning · ~Hard |
2-0 | 12-5 | W |
| 27/08 | Luca Castelnuovo M25 Taipei · ~Hard |
1-2 | 13-16 | L |
| 26/08 | Shinji Hazawa M25 Taipei · ~Hard |
2-1 | 18-10 | W |
| 20/08 | Matthew Dellavedova M25 Taipei · ~Hard |
0-2 | 3-12 | L |
| 18/08 | Yuki Mochizuki M25 Taipei · ~Hard |
2-0 | 12-8 | W |
| 17/08 | Manish Sureshkumar M25 Taipei · ~Hard |
2-1 | 8-9 | W |
| 08/07 | Matthew Dellavedova M15 Tokyo · ~Hard |
0-2 | 6-13 | L |
| 30/06 | Yusuke Takahashi M15 Tokyo · ~Hard |
0-2 | 8-13 | L |
| 15/06 | Jesse Delaney M15 Tokyo · ~Hard |
1-2 | 11-12 | L |
Yue Xia
Swipe the table sideways →
| Date | Opponent | Sets | Games | Res. |
|---|---|---|---|---|
| 08/09 | Ivan Dorokhov M15 Wuning · ~Hard |
0-2 | 9-13 | L |
| 01/09 | Alex Jones M15 Wuning · ~Hard |
0-2 | 9-13 | L |
| 25/08 | Yua Taka M15 Maanshan · ~Hard |
0-2 | 4-12 | L |
| 15/07 | Duckhee Lee M15 Wuning · ~Hard |
0-2 | 1-12 | L |
| 14/07 | Xinyuan Xie M15 Wuning · ~Hard |
2-0 | 12-7 | W |
| 01/07 | Hoyoung Roh M15 Wuning · ~Hard |
0-2 | 2-12 | L |
| 30/06 | Chun-Chien Hou M15 Wuning · ~Hard |
0-2 | 6-12 | L |
| 16/06 | Duckhee Lee M15 Maanshan · ~Hard |
0-2 | 3-11 | L |
| 09/06 | Stefan Storch M15 Maanshan · ~Hard |
0-2 | 6-12 | L |
| 03/06 | Fanming Meng M15 Luan · ~Hard |
1-2 | 9-16 | L |
Frequently asked questions
Who is the favourite in Hiromasa Koyama vs Yue Xia?
Our model gives 76% to Hiromasa Koyama, 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.

