Prediction: Kayla Day vs Kimberly Birrell
Team pages: Kayla Day · Kimberly Birrell
Prediction summary
Winner
Kayla Day
Kimberly Birrell
Estimated games
21.9
Recent form · 10 last
Kayla Day
7-3 (W-L)
Kimberly Birrell
6-4 (W-L)
Our model (Elo) vs Market
Rating Elo · Kayla Day 1532 · Kimberly Birrell 1545
| Kayla Day | Kimberly Birrell | |
|---|---|---|
| Our model | 48% | 52% |
| Market | 40% | 60% |
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: Kimberly Birrell makes many double faults (5.4/match).
Statistics
| Kayla Day | Kimberly Birrell | |
|---|---|---|
| Win % | 70% | 70% |
| Win % · Hard | 50% (4) | 70% (10) |
| Sets (G-P) | 1.6-0.6 | 1.6-0.9 |
| Games (G-P) | 12.4-8.5 | 13-11.1 |
| Aces | 4.7 | 1.3 |
| Double faults | 3.8 | 5.4 |
| 1st serve % | 71.1% | 61.8% |
| Break % | 41% | 54% |
Estimated total games (ours)
21.9
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. |
|---|---|---|---|---|
| 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 |
| 14/09 | Elvina Kalieva WTA Guadalajara · Hard |
2-0 | 13-10 | W |
Kimberly Birrell
Swipe the table sideways →
| Date | Opponent | Sets | Games | Res. |
|---|---|---|---|---|
| 13/10 | Katie Volynets WTA Wuhan · Hard |
1-2 | 16-19 | L |
| 03/10 | Marie Bouzkova WTA Beijing · Hard |
0-2 | 8-12 | L |
| 01/10 | Aoi Ito WTA Beijing · Hard |
2-0 | 12-2 | W |
| 27/09 | Maya Joint WTA Seoul · Hard |
2-0 | 12-6 | W |
| 26/09 | Anna Bondar WTA Seoul · Hard |
2-1 | 15-12 | W |
| 26/09 | Katie Volynets WTA Seoul · Hard |
2-1 | 15-13 | W |
| 24/09 | Yexin Ma WTA Seoul · Hard |
2-0 | 13-8 | W |
| 22/09 | Tamara Zidansek WTA Seoul · Hard |
2-0 | 13-10 | W |
| 03/09 | Ekaterina Alexandrova US Open Women · Hard |
1-2 | 10-14 | L |
| 31/08 | Petra Marcinko US Open Women · Hard |
2-1 | 16-15 | W |
Frequently asked questions
Who is the favourite in Kayla Day vs Kimberly Birrell?
Our model gives 56% to Kimberly Birrell, 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.

