Prediction: Kayla Day vs Shuai Zhang
Team pages: Kayla Day · Shuai Zhang
Prediction summary
Winner
Kayla Day
Shuai Zhang
Estimated games
19.9Bet365 line 22.5
Recent form · 10 last
Kayla Day
7-3 (W-L)
Shuai Zhang
2-8 (W-L)
Head-to-head
Kayla Day
0–1
Shuai Zhang
(1 last)
- 15 Aug1-2 10-14L
Our model (Elo) vs Market
Rating Elo · Kayla Day 1534 · Shuai Zhang 1441
| Kayla Day | Shuai Zhang | |
|---|---|---|
| Our model | 63% | 37% |
| Market | 51% | 49% |
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 1534 vs 1441).
- Kayla Day is in better form: 70% recent wins.
- Head-to-head: Kayla Day 0–1 Shuai Zhang (1).
Statistics
| Kayla Day | Shuai Zhang | |
|---|---|---|
| Win % | 70% | 30% |
| Win % · Hard | 50% (4) | 25% (8) |
| Sets (G-P) | 1.6-0.6 | 0.7-1.5 |
| Games (G-P) | 12.3-8 | 8-10.4 |
| Aces | 4.9 | 1.1 |
| Double faults | 3.1 | 1.6 |
| 1st serve % | 71.4% | 60.6% |
| Break % | 44.7% | 35.8% |
Estimated total games (ours)
19.9 · Bet365 line 22.5 · -2.6
Over 22.5: 32% · 1.83
Under 22.5: 68% · 1.83
H2H · Kayla Day 0 – 1 Shuai Zhang (1)
Head-to-head (H2H) · Kayla Day 0–1 Shuai Zhang
Swipe the table sideways →
| Date | Sets | Games | Res. |
|---|---|---|---|
| 15/08/26 WTA Cincinnati | 1-2 | 10-14 | L |
Last 10 matches played
Last matches of each player (sets and games). W = win, L = loss. Common opponents to both are in blue.
Kayla Day
Swipe the table sideways →
| Date | Opponent | Sets | Games | Res. |
|---|---|---|---|---|
| 20/10 | Sofia Kenin WTA Osaka · Hard |
2-0 | 12-5 | W |
| 18/10 | Maya Joint WTA Osaka · Hard |
1-2 | 12-15 | L |
| 17/10 | Ena Koike WTA Osaka · Hard |
2-0 | 13-8 | W |
| 30/09 | Amelie Van Impe W100 Templeton |
0-2 | 6-12 | L |
| 27/09 | Janae Preston W50 Berkeley |
2-0 | 13-9 | W |
| 26/09 | Ella Mcdonald W50 Berkeley |
2-0 | 13-9 | W |
| 25/09 | Anna Rogers W50 Berkeley |
2-0 | 12-1 | W |
| 25/09 | Evialina Laskevich W50 Berkeley |
2-0 | 12-4 | W |
| 23/09 | Arina Bulatova W50 Berkeley |
2-0 | 12-1 | W |
| 17/09 | Ludmilla Samsonova WTA Guadalajara · Hard |
1-2 | 18-16 | L |
Shuai Zhang
Swipe the table sideways →
| Date | Opponent | Sets | Games | Res. |
|---|---|---|---|---|
| 20/10 | Tereza Valentova WTA Osaka · Hard |
1-2 | 12-13 | L |
| 13/10 | Ashlyn Krueger WTA Wuhan · Hard |
0-2 | 3-12 | L |
| 02/10 | Xiyu Wang Asian Games |
0-2 | 3-12 | L |
| 01/10 | Yulia Putintseva Asian Games |
2-0 | 12-6 | W |
| 24/09 | Elisabetta Cocciaretto Billie Jean King Cup · Hard |
2-0 | 12-2 | W |
| 30/08 | Leylah Annie Fernandez US Open Women · Hard |
0-2 | 5-12 | L |
| 25/08 | Maria Timofeeva WTA Monterrey · Hard |
0-2 | 4-12 | L |
| 16/08 | Ann Li WTA Cincinnati · Hard |
0-2 | 8-13 | L |
| 15/08 | Kayla Day WTA Cincinnati · Hard |
2-1 | 14-10 | W |
| 07/08 | Aryna Sabalenka WTA Toronto · Hard |
0-2 | 7-12 | L |
Frequently asked questions
Who is the favourite in Kayla Day vs Shuai Zhang?
Our model gives 57% to Kayla Day, 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.

