Tennis · WTA Cincinnati · 15/08, 17:00
Prediction: Shuai Zhang vs Kayla Day
Team pages: Shuai Zhang · Kayla Day
Prediction summary
Winner
Shuai Zhang
Kayla Day
Estimated games
22.8
Recent form · 10 last
Shuai Zhang
4-6 (W-L)
Kayla Day
7-3 (W-L)
Our model (Elo) vs Market
Rating Elo · Shuai Zhang 1487 · Kayla Day 1553
| Shuai Zhang | Kayla Day | |
|---|---|---|
| Our model | 41% | 59% |
| Market | 45% | 55% |
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 Kayla Day (rating 1487 vs 1553).
- Kayla Day is in better form: 70% recent wins.
- Note: Kayla Day makes many double faults (4.2/match).
Statistics
| Shuai Zhang | Kayla Day | |
|---|---|---|
| Win % | 40% | 70% |
| Win % · Grass | 43% (7) | 75% (4) |
| Sets (G-P) | 0.9-1.2 | 1.6-0.8 |
| Games (G-P) | 9.1-10.2 | 12.8-10.7 |
| Aces | 1.6 | 5.4 |
| Double faults | 2.4 | 4.2 |
| 1st serve % | 65% | 70.3% |
| Break % | 36.2% | 43.3% |
Estimated total games (ours)
22.8
Last 10 matches played
Last matches of each player (sets and games). W = win, L = loss. Common opponents to both are in blue.
Shuai Zhang
Swipe the table sideways →
| Date | Opponent | Sets | Games | Res. |
|---|---|---|---|---|
| 07/08 | Aryna Sabalenka WTA Toronto · Hard |
0-2 | 7-12 | L |
| 03/08 | Yulia Putintseva WTA Toronto · Hard |
2-0 | 12-5 | W |
| 25/07 | Gabriela Knutson WTA Washington · Hard |
1-2 | 11-13 | L |
| 01/07 | Karolina Muchova Wimbledon Women · Grass |
0-2 | 5-12 | L |
| 29/06 | Bianca Andreescu Wimbledon Women · Grass |
2-0 | 14-12 | W |
| 20/06 | Elena-Gabriela Ruse WTA Bad Homburg · Grass |
0-2 | 9-13 | L |
| 16/06 | Karolina Muchova WTA Berlin · Grass |
0-2 | 4-12 | L |
| 15/06 | Magdalena Frech WTA Berlin · Grass |
2-0 | 12-6 | W |
| 13/06 | Milena Steinkamp WTA Berlin · Grass |
2-0 | 12-5 | W |
| 09/06 | Alexandra Eala WTA Queens · Grass |
0-2 | 5-12 | L |
Kayla Day
Swipe the table sideways →
| Date | Opponent | Sets | Games | Res. |
|---|---|---|---|---|
| 13/08 | Yue Yuan WTA Cincinnati · Hard |
2-1 | 15-14 | W |
| 11/08 | Taylah Preston WTA Cincinnati · Hard |
2-0 | 12-5 | W |
| 05/08 | Coco Gauff WTA Toronto · Hard |
0-2 | 7-13 | L |
| 03/08 | Diane Parry WTA Toronto · Hard |
2-1 | 16-14 | W |
| 01/08 | Hanyu Guo WTA Toronto · Hard |
2-0 | 13-7 | W |
| 28/07 | Mai Hontama WTA Vancouver · Hard |
1-2 | 14-18 | L |
| 30/06 | Madison Keys Wimbledon Women · Grass |
1-2 | 14-18 | L |
| 25/06 | Katarzyna Kawa Wimbledon Women · Grass |
2-0 | 13-7 | W |
| 24/06 | Erika Andreeva Wimbledon Women · Grass |
2-0 | 12-4 | W |
| 23/06 | Cadence Brace Wimbledon Women · Grass |
2-0 | 12-7 | W |
Frequently asked questions
Who is the favourite in Shuai Zhang vs Kayla Day?
Our model gives 57% to Kayla Day, using surface Elo on grass.
What is the prediction based on?
On an Elo model by surface (grass) adjusted for opponent quality, compared with the market odds.

