Tennis · W50 Yokohama · 12/11, 03:30
Prediction: Rina Saigo vs Chia Yi Tsao
Team pages: Rina Saigo · Chia Yi Tsao
Prediction summary
Winner
Rina Saigo
Chia Yi Tsao
Estimated games
19.4
Recent form · 10 last
Rina Saigo
3-7 (W-L)
Chia Yi Tsao
6-4 (W-L)
Head-to-head
Rina Saigo
1–0
Chia Yi Tsao
(1 last)
- 20 Nov2-0 12-7W
Our model (Elo) vs Market
Rating Elo · Rina Saigo 1428 · Chia Yi Tsao 1529
| Rina Saigo | Chia Yi Tsao | |
|---|---|---|
| Our model | 36% | 64% |
| Market | 65% | 35% |
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 Chia Yi Tsao (rating 1428 vs 1529).
- Chia Yi Tsao is in better form: 50% recent wins.
- Head-to-head: Rina Saigo 1–0 Chia Yi Tsao (1).
Statistics
| Rina Saigo | Chia Yi Tsao | |
|---|---|---|
| Win % | 20% | 50% |
| Win % · Hard | 0% (5) | – |
| Sets (G-P) | 0.6-1.6 | 1.2-0.9 |
| Games (G-P) | 7.7-11.4 | 9.4-9 |
| Aces | 0.2 | 1.7 |
| Double faults | 1.9 | 1.8 |
| 1st serve % | 54.5% | 62.1% |
| Break % | 48.5% | 41.9% |
Estimated total games (ours)
19.4
H2H · Rina Saigo 1 – 0 Chia Yi Tsao (1)
Head-to-head (H2H) · Rina Saigo 1–0 Chia Yi Tsao
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| Date | Sets | Games | Res. |
|---|---|---|---|
| 20/11/23 W100 Takasaki | 2-0 | 12-7 | W |
Last 10 matches played
Last matches of each player (sets and games). W = win, L = loss. Common opponents to both are in blue.
Rina Saigo
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| Date | Opponent | Sets | Games | Res. |
|---|---|---|---|---|
| 11/11 | JiaYi Wang W50 Yokohama |
2-0 | 11-4 | W |
| 05/11 | Katie Swan W100 Incheon |
0-2 | 5-12 | L |
| 04/11 | Miho Kuramochi W100 Incheon |
2-0 | 12-4 | W |
| 24/10 | Alevtina Ibragimova WTA Guangzhou · Hard |
1-2 | 12-15 | L |
| 17/10 | Harriet Dart WTA Osaka · Hard |
0-2 | 4-12 | L |
| 04/10 | Yidi Yang WTA Suzhou · Hard |
0-2 | 6-12 | L |
| 29/09 | Alexandra Shubladze WTA Jingshan · Hard |
0-2 | 8-13 | L |
| 19/09 | Alevtina Ibragimova WTA Seoul · Hard |
0-2 | 5-12 | L |
| 15/09 | Ruien Zhang W35 Shenyang |
1-2 | 10-18 | L |
| 09/09 | Yuhan Wang W50 Guiyang |
0-2 | 4-12 | L |
Chia Yi Tsao
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| Date | Opponent | Sets | Games | Res. |
|---|---|---|---|---|
| 11/11 | Priska Madelyn Nugroho W50 Yokohama |
2-0 | 8-6 | W |
| 10/11 | Ekaterina Ovcharenko W50 Yokohama |
2-0 | 12-7 | W |
| 09/11 | Kayo Nishimura W50 Yokohama |
1-1 | 7-8 | L |
| 07/11 | Ayano Shimizu W35 Hamamatsu |
0-2 | 4-12 | L |
| 06/11 | Koharu Ito W35 Hamamatsu |
2-0 | 12-2 | W |
| 05/11 | Kisa Yoshioka W35 Hamamatsu |
2-0 | 12-7 | W |
| 03/11 | Riko Kikawada W35 Hamamatsu |
2-0 | 12-5 | W |
| 28/10 | Vaidehee Chaudhari W35 Sydney |
0-2 | 9-13 | L |
| 21/10 | Monique Barry W35 Sydney |
1-2 | 12-18 | L |
| 23/09 | Eri Shimizu W50 Nanao |
0-2 | 6-12 | L |
Frequently asked questions
Who is the favourite in Rina Saigo vs Chia Yi Tsao?
Our model gives 52% to Rina Saigo, 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.

