Prediction: Natsumi Kawaguchi vs Sayaka Ishii
Team pages: Natsumi Kawaguchi · Sayaka Ishii
Prediction summary
Winner
Natsumi Kawaguchi
Sayaka Ishii
Estimated games
21.3
Recent form · 10 last
Natsumi Kawaguchi
4-6 (W-L)
Sayaka Ishii
6-4 (W-L)
Head-to-head
Natsumi Kawaguchi
2–1
Sayaka Ishii
(3 last)
- 20 May2-0 13-9W
- 27 Apr0-2 10-13L
- 04 Oct2-1 14-15W
Our model (Elo) vs Market
Rating Elo · Natsumi Kawaguchi 1499 · Sayaka Ishii 1524
| Natsumi Kawaguchi | Sayaka Ishii | |
|---|---|---|
| Our model | 46% | 54% |
| Market | 49% | 51% |
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
- Head-to-head: Natsumi Kawaguchi 2–1 Sayaka Ishii (3).
- Note: Sayaka Ishii makes many double faults (5.4/match).
Statistics
| Natsumi Kawaguchi | Sayaka Ishii | |
|---|---|---|
| Win % | 40% | 60% |
| Win % · Hard | 33% (3) | 50% (2) |
| Sets (G-P) | 1-1.2 | 1.4-0.9 |
| Games (G-P) | 10.1-9.7 | 11.9-10.7 |
| Aces | 2.7 | 2.6 |
| Double faults | 2.5 | 5.4 |
| 1st serve % | 62.5% | 66.7% |
| Break % | 61.3% | 63.5% |
Estimated total games (ours)
21.3
H2H · Natsumi Kawaguchi 2 – 1 Sayaka Ishii (3)
Head-to-head (H2H) · Natsumi Kawaguchi 2–1 Sayaka Ishii
Swipe the table sideways →
| Date | Sets | Games | Res. |
|---|---|---|---|
| 20/05/26 W100 Takasaki | 2-0 | 13-9 | W |
| 27/04/26 W100 Gifu | 0-2 | 10-13 | L |
| 04/10/22 ITF W25 Makinohara | 2-1 | 14-15 | W |
Last 10 matches played
Last matches of each player (sets and games). W = win, L = loss. Common opponents to both are in blue.
Natsumi Kawaguchi
Swipe the table sideways →
| Date | Opponent | Sets | Games | Res. |
|---|---|---|---|---|
| 22/09 | Kayo Nishimura W50 Nanao |
2-0 | 12-5 | W |
| 18/09 | Rinko Matsuda W35 Kyoto |
0-2 | 6-12 | L |
| 17/09 | Haruna Arakawa W35 Kyoto |
2-0 | 12-3 | W |
| 15/09 | Kayo Nishimura W35 Kyoto |
2-0 | 12-7 | W |
| 06/09 | Yujia Huang W50 Guiyang |
0-2 | 9-13 | L |
| 30/08 | Funa Kozaki W75 Tianjin |
0-2 | 6-12 | L |
| 25/08 | Priska Madelyn Nugroho W15 Tianjin |
1-2 | 15-13 | L |
| 25/06 | Ya-Yi Yang W35 Taipei · ~Hard |
0-2 | 3-12 | L |
| 23/06 | Yu-Chen Lin W35 Taipei · ~Hard |
2-0 | 12-3 | W |
| 16/06 | Yuno Kitahara W35 Taipei · ~Hard |
1-2 | 14-17 | L |
Sayaka Ishii
Swipe the table sideways →
| Date | Opponent | Sets | Games | Res. |
|---|---|---|---|---|
| 23/09 | Nagi Hanatani W50 Nanao |
2-0 | 13-8 | W |
| 22/09 | Rira Kosaka W50 Nanao |
2-0 | 12-4 | W |
| 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 |
Frequently asked questions
Who is the favourite in Natsumi Kawaguchi vs Sayaka Ishii?
Our model gives 52% 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.

