Prediction: Sayaka Ishii vs Rira Kosaka
Team pages: Sayaka Ishii · Rira Kosaka
Prediction summary
Winner
Sayaka Ishii
Rira Kosaka
Estimated games
22.1
Recent form · 10 last
Sayaka Ishii
4-6 (W-L)
Rira Kosaka
5-5 (W-L)
Our model (Elo) vs Market
Rating Elo · Sayaka Ishii 1513 · Rira Kosaka 1513
| Sayaka Ishii | Rira Kosaka | |
|---|---|---|
| Our model | 50% | 50% |
| Market | 88% | 12% |
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: Sayaka Ishii makes many double faults (6.1/match).
- Note: Rira Kosaka makes many double faults (5.4/match).
Statistics
| Sayaka Ishii | Rira Kosaka | |
|---|---|---|
| Win % | 50% | 60% |
| Win % · Hard | 50% (2) | 50% (6) |
| Sets (G-P) | 1.2-1.2 | 1.4-1.1 |
| Games (G-P) | 12.2-12.1 | 10.4-10.4 |
| Aces | 2.7 | 1.1 |
| Double faults | 6.1 | 5.4 |
| 1st serve % | 64.2% | 54.9% |
| Break % | 58.3% | 48.4% |
Estimated total games (ours)
22.1
Last 10 matches played
Last matches of each player (sets and games). W = win, L = loss. Common opponents to both are in blue.
Sayaka Ishii
Swipe the table sideways →
| Date | Opponent | Sets | Games | Res. |
|---|---|---|---|---|
| 18/09 | Hiromi Abe W35 Kyoto |
1-2 | 13-16 | L |
| 17/09 | Amelia Rajecki W35 Kyoto |
2-1 | 19-16 | W |
| 15/09 | Cheuk Ying Shek W35 Kyoto |
2-0 | 13-10 | W |
| 30/08 | Urszula Radwanska W50 Leiria |
0-2 | 9-13 | L |
| 27/08 | Alice Ferlito W15 Torello · ~Hard |
1-2 | 12-14 | L |
| 26/08 | Neus Torner Sensano W15 Torello · ~Hard |
2-0 | 13-7 | W |
| 21/08 | Juliana Giaccio W15 Logrono |
0-2 | 3-12 | L |
| 20/08 | Valentina Losciale W15 Logrono |
2-0 | 12-7 | W |
| 19/08 | Jordina Font W15 Logrono |
2-1 | 19-13 | W |
| 10/08 | Katarina Kujovic W35 Aldershot |
0-2 | 9-13 | L |
Rira Kosaka
Swipe the table sideways →
| Date | Opponent | Sets | Games | Res. |
|---|---|---|---|---|
| 21/09 | Natsuho Arakawa W50 Nanao |
2-1 | 15-11 | W |
| 10/09 | Kisa Yoshioka W15 Yeongwol |
1-2 | 12-17 | L |
| 09/09 | Hee Won Ju W15 Yeongwol |
2-0 | 13-7 | W |
| 07/09 | Eun Ji Lee W15 Yeongwol |
2-1 | 9-9 | W |
| 16/07 | Junhan Zhang W15 Luan · ~Hard |
0-2 | 5-12 | L |
| 14/07 | Liuyan An W15 Luan · ~Hard |
2-0 | 12-6 | W |
| 13/07 | Xin Tong Wang W15 Luan · ~Hard |
2-1 | 10-10 | W |
| 08/07 | Seo Yun Choi W15 Luan · ~Hard |
0-2 | 5-12 | L |
| 07/07 | Salakthip Ounmuang W15 Luan · ~Hard |
2-0 | 13-10 | W |
| 30/06 | Yui Ohwaki W15 Maanshan · ~Hard |
1-2 | 10-10 | L |
Frequently asked questions
Who is the favourite in Sayaka Ishii vs Rira Kosaka?
Our model gives 71% to Sayaka Ishii, 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.