WTA BirminghamFinished

Predictions graded

Kayla Day #145United States2Hanne Vandewinkel #99Belgium0

Sets 7-6 · 6-2Tue 2 Jun 2026, 13:23 Predictions gradedFirst RoundGrass

Predictions6–275%

Edges4–0100%

Player Profiles

Ranking advantageHanne Vandewinkel · 46 places

Kayla Day

United States

27-year-old American left-hander listed at 173 cm. Public profile sources show a career-high singles ranking of No. 84, but the exact searches did not surface a reliable preferred-surface or current comeback/injury-decline tag.

Current ranking: #145
Peak ranking: #84
Current age: 27
Preferred surface: —
Hand: Left handed
Height: 173 cm

Hanne Vandewinkel

Belgium

22-year-old Belgian right-hander listed at 178 cm. Her official WTA profile lists a career-high singles ranking of No. 92, and she arrived in Birmingham as the No. 6 seed with a 24-11 2026 record shown on that profile.

Current ranking: #99
Peak ranking: #92
Current age: 22
Preferred surface: —
Hand: Right handed
Height: 178 cm

Quick Take

Pre-match view

Context last updated 1 Jun 2026, 09:29 · Europe/Bucharest

Kayla Day is in superb form with nine wins in her last ten matches and has grass-court experience, while Hanne Vandewinkel is struggling and has never won on grass.

Back Day to win at 2.00 (10-point edge) and consider Day 2-0 at 3.20 (23.7-point edge) given both players' recent straight-set trends. The match is likely to be short, supporting under 21.5 total games.

Context

Day won 9 of her last 10 matches, with the only loss a tight three-setter to Dodin on May 18.
- Her last four wins came in straight sets, dropping no more than four games in any set.
- She beat opponents ranked between 190 and 267 during this run, showing consistency against similar-level players.
- Day's first-set win conversion rate is 85% over her career, and she won the opener in 8 of those 10 matches.
Vandewinkel lost 6 of her last 8 matches, including a 6-3 6-0 defeat to Madison Keys on May 26.
- In those six losses, she won only 3.8 games per match on average.
- She dropped the first set in five of those six losses, often falling behind early.
- Her only wins in this stretch came against players ranked 149, 195, and 201, not top-tier opposition.
Vandewinkel's career grass record is 0-1, with her only match a loss in 2025.
- Day has a 3-2 career grass record, including wins in 2023 and 2024.
- Day's serve and return stats (65% first-serve win rate, 45% return points won) are better suited to grass than Vandewinkel's (63% first-serve win rate, 48% return points won).
- Vandewinkel's 6.3% double-fault rate could be punished on grass, where free points are costly.

BetBugs edges

Compare BetBugs' chances with the market's.

Positive edges · 3

BetBugs probabilities

How likely BetBugs thought each outcome was.

Result1 of 1 landed

Signal quality Medium · Uncertainty band Lean · Market price 2.00
The read
Day's superior recent form and existing grass experience give her a clear edge over Vandewinkel, who is struggling and has no grass wins.
- Day has won 9 of her last 10 matches, with the only loss in a tight three-setter against Dodin (May 18).
- Vandewinkel has lost 6 of her last 8 matches, including a 6-3 6-0 defeat to Keys on clay (May 26).
- Day holds a 3-2 career grass record, while Vandewinkel has never won a grass-court match (0-1 in 2025).
- Day's recent form includes four straight wins on clay (May 27–31) with dominant scorelines, indicating strong current level.
BetBugs · Match WinnerwonKayla DayEstimated chance60%

Games2 of 3 landed

Signal quality Low · Uncertainty band Slight lean · Not priced
The read
Both players' recent matches have been relatively short, and grass-court dynamics favor a quicker match, supporting under 21.5 total games.
- Day's last four wins have all finished in straight sets with an average of 18.5 games per match.
- Vandewinkel's last three losses have averaged 15.3 games per match.
- Grass courts typically produce shorter points and fewer games.
- Neither player has a history of long three-set battles in recent matches.
BetBugs · Total GameswonUnder 21.5Estimated chance55%
Signal quality Low · Uncertainty band Slight lean · Not priced
The read
Recent first-set scores for both players suggest a relatively quick set, and grass conditions reinforce the under 9.5 games.
- Day's last four first sets have been 6-4, 6-3, 6-2, 6-2, averaging 8.5 games.
- Vandewinkel's last three first sets have been 6-3, 6-4, 6-4, averaging 9.3 games.
- Grass courts often lead to quicker holds and fewer deuce games.
- Both players have first-serve percentages around 60-66%, which can lead to efficient service games.
BetBugs · Set 1 Total GameslostUnder 9.5Estimated chance52%
Signal quality Low · Uncertainty band Near coin-flip · Not priced
The read
Recent second-set scores for both players trend under 9.5 games, and the match dynamics could lead to a quick finish.
- Day's last four second sets have been 6-4, 6-4, 6-2, 6-2, averaging 8.5 games.
- Vandewinkel's last three second sets have been 6-0, 6-2, 6-2, averaging 7.3 games.
- If Day wins the first set, Vandewinkel may fade, leading to a lopsided second set.
- Grass matches often see a drop in competitiveness after the first set.
BetBugs · Set 2 Total GameswonUnder 9.5Estimated chance50%

Sets3 of 3 landed

Signal quality Medium · Uncertainty band Strong lean · Market price 1.50
The read
Both players' recent matches have been decided in straight sets, making a two-set match highly likely.
- Day has won her last four matches in straight sets.
- Vandewinkel has lost her last three matches in straight sets.
- Day's career deciding-set win rate is 52%, but she hasn't needed a third set recently.
- Vandewinkel's recent form shows no three-set matches in her last five outings.
BetBugs · Total SetswonUnder 2.5Estimated chance65%
Signal quality Medium · Uncertainty band Lean · Market price 2.00
The read
Day's strong first-set record and Vandewinkel's tendency to start slowly make Day the likely set 1 winner.
- Day has won the first set in 8 of her last 10 matches.
- Vandewinkel has lost the first set in 5 of her last 6 losses.
- Day's first-set win conversion rate is 85% over her career.
- Vandewinkel's recent first-set performances include a 6-3 loss to Keys and a 6-4 loss to Udvardy.
BetBugs · Set 1 WinnerwonKayla DayEstimated chance58%
Signal quality Medium · Uncertainty band Slight lean · Market price 3.20
The read
Day's dominant straight-set wins and Vandewinkel's straight-set losses make a 2-0 victory for Day the most likely set-betting outcome.
- Day has won her last four matches 2-0.
- Vandewinkel has lost her last three matches 0-2.
- Day's first-set win conversion rate is 85%, and she often closes out matches in straight sets.
- Vandewinkel's recent form shows no three-set matches, win or lose.
BetBugs · Set BettingwonKayla Day 2-0Estimated chance55%

Match stats0 of 1 landed

Signal quality Low · Uncertainty band Lean · Not priced
The read
Recent match patterns for both players indicate a low likelihood of a tiebreak, with sets being decided by breaks rather than tiebreaks.
- Day's last four matches have not featured a tiebreak.
- Vandewinkel's last five matches have not featured a tiebreak.
- Day's career tiebreak win rate is 48%, and Vandewinkel's is 53%, but recent matches have been decisive in regular games.
- Grass courts can produce tiebreaks, but both players' recent form suggests straight-set wins without tiebreaks.
BetBugs · Tiebreak in MatchlostNoEstimated chance60%
Signal quality Low · Uncertainty band Slight lean · Not priced
The read
Grass-court conditions and both players' ace rates support a total aces over 5.5.
- Day averages 4% aces on serve, which over an average of 20 games could yield around 4-5 aces.
- Vandewinkel averages 2.6% aces, contributing another 2-3 aces.
- Grass courts typically increase ace counts due to faster surfaces.
- Combined, their ace rates suggest a total around 6-8 aces in a typical match.
BetBugs · Total AcesOver 5.5Estimated chance55%
Signal quality Low · Uncertainty band Slight lean · Not priced
The read
Both players have relatively high double-fault rates, and grass conditions could exacerbate this, leading to over 7.5 double faults.
- Day has a 6% double-fault rate, averaging about 3-4 double faults per match.
- Vandewinkel also has a 6.3% double-fault rate, averaging similar numbers.
- Grass courts can lead to more double faults due to lower bounce and faster conditions.
- Combined, their double-fault rates suggest a total around 8-10 in a typical match.
BetBugs · Total Double FaultsOver 7.5Estimated chance55%

Kayla Day

11W 4L

3-6 6-3 7-6(3)#267Jennifer Ruggeri

6-4 6-4#190Luisina Giovannini

6-2 6-2#192Angela Fita Boluda

6-3 7-6(5)#232Eva Vedder

6-4 6-2#255Ane Mintegi Del Olmo

6-4 2-6 7-6(13)#526Oceane Dodin

7-6(4) 6-4#192Angela Fita Boluda

4-6 6-2 6-2#165Elizabeth Mandlik

6-2 6-3#353Martha Matoula

6-4 6-1#256Martina Capurro Taborda

7-6(4) 6-7(4) 6-4#179Julia Riera

7-5 6-3#274Nuria Parrizas-Diaz

6-3 6-1#146Mary Stoiana

6-4 6-1#182Claire Liu

7-6(4) 6-2#382Katarina Jokic

Hanne Vandewinkel

7W 8L

6-3 6-0#19Madison Keys

6-4 6-2#59Panna Udvardy

6-3 6-2#45Dayana Yastremska

7-5 6-4#195Whitney Osuigwe

6-4 6-3#170Jil Teichmann

6-2 6-0#230Erika Andreeva

7-6(4) 6-4#93Daria Snigur

6-2 7-5#149Linda Fruhvirtova

7-6(3) 6-3#17Iva Jovic

6-4 ret.#28Marie Bouzkova

6-3 2-6 6-3#144Sofia Costoulas

6-3 6-3#177Tatiana Prozorova

6-2 6-4#201Vendula Valdmannova

6-2 6-4#164Greetje Minnen

6-3 4-6 6-1#205Francisca Jorge

Kayla Day

Hanne Vandewinkel

Quick Take

Context

BetBugs edges

Kayla Day

Kayla Day

Kayla Day 2-0

Under 2.5

Result1 of 1 landed

Games2 of 3 landed

Sets3 of 3 landed

Match stats0 of 1 landed

Kayla Day

Hanne Vandewinkel