WTA IlkleyFinished

Predictions graded

Kayla Day #145United States0Mary Stoiana #146United States2

Sets 5-7 · 4-6Tue 9 Jun 2026, 11:30 Predictions gradedFirst RoundGrass

Predictions3–633%

Edges2–529%

Player Profiles

Ranking advantageKayla Day · 1 places

Kayla Day

United States

Reached a career-high No. 84 on April 1, 2024. WTA lists clay as her favourite surface, and her ranking had recovered to No. 145 by May 2026 entering Ilkley.

Current ranking: #145
Peak ranking: #84 · 2024
Current age: 26
Preferred surface: Clay
Hand: Left handed
Height: 173 cm

Mary Stoiana

United States

Former Texas A&M player and two-time SEC Player of the Year. WTA lists her at a career-high No. 146 entering Ilkley in June 2026.

Current ranking: #146
Peak ranking: #146
Current age: 23
Preferred surface: —
Hand: Right handed
Height: —

Quick Take

Pre-match view

Context last updated 8 Jun 2026, 07:27 · Europe/Bucharest

Kayla Day's 3-0 H2H record, superior grass-court experience, and strong recent form make her a high-confidence pick to beat Mary Stoiana.

Back Day on the moneyline and -3.5 game handicap, with value also on under 21.5 total games given the head-to-head trend of low-scoring matches.

Context

Day won 6-3 6-1 on hard in April 2026, 6-3 0-6 7-6(4) on hard in February 2026, and 6-4 6-3 on clay in July 2025.
- Day has won the first set in all three matches.
- Two of the three matches ended in straight sets with Day losing only 4 and 7 games respectively.
Day is 10-5 in her last 15 matches with wins over top-100 opponents like Hanne Vandewinkel (No. 99).
- Stoiana is 8-7 in her last 15 matches and has lost to players ranked No. 192 and No. 165 in that span.
- Day's ranking has risen from No. 194 to No. 145 since February 2026, while Stoiana is at a career-high No. 146 but has been less consistent.
Day averages 4.0 aces per match compared to Stoiana's 1.9.
- Day wins 65.2% of first-serve points versus Stoiana's 61.5%.
- Day's return points won percentage is 45%, and she converts break points at 46.6%, while Stoiana's return points won is 47% with a 49.6% conversion rate.

BetBugs edges

Compare BetBugs' chances with the market's.

Positive edges · 5

BetBugs probabilities

How likely BetBugs thought each outcome was.

Result0 of 1 landed

Signal quality High · Uncertainty band Strong lean · Market price 1.80
The read
Kayla Day's dominant H2H record (3-0) and superior grass-court experience give her a clear edge in this matchup.
- H2H: Day leads 3-0, including a dominant 6-3 6-1 win on hard in April 2026 and a 6-4 6-3 win on clay in July 2025.
- Surface: Day has a 4-2 grass record in 2024-2026, while Stoiana is 2-1 on grass in 2026 with limited prior grass experience.
- Recent form: Day is 10-5 in last 15 matches with wins over top-100 opponents; Stoiana is 8-7 with losses to players ranked outside top 100.
BetBugs · Match WinnerlostKayla DayEstimated chance72%

Games1 of 4 landed

Signal quality Medium · Uncertainty band Strong lean · Market price 1.50
The read
Competitive first sets in H2H and recent form suggest over 8.5 games in set 1.
- Day's recent first sets average 9.2 games; Stoiana's average 9.5.
- In H2H, first sets have had 9, 9, and 10 games.
- Both players have first-serve percentages around 60-62%, leading to competitive games.
BetBugs · Set 1 Total GameswonOver 8.5Estimated chance65%
Signal quality Medium · Uncertainty band Lean · Market price 1.90
The read
The H2H trend of low game totals and the fast grass surface suggest a match under 21.5 games.
- H2H: Two of three matches finished with 16 or fewer games; the average total games in their meetings is 18.3.
- Day's recent matches average 19.2 total games; Stoiana's average 21.1.
- Grass courts tend to produce shorter points and fewer games.
BetBugs · Total GameslostUnder 21.5Estimated chance60%
Signal quality Medium · Uncertainty band Lean · Market price 2.30
The read
Day's consistent ability to win by comfortable margins against Stoiana and similar opponents supports a -3.5 handicap.
- Day's average game margin in wins over Stoiana is +5.3 games.
- Day's recent wins have an average margin of +4.2 games.
- Stoiana's losses have an average margin of -4.1 games.
BetBugs · Game HandicaplostKayla Day -3.5Estimated chance58%
Signal quality Low · Uncertainty band Slight lean · Not priced
The read
If Day leads, she tends to close quickly, making under 9.5 games in set 2 a plausible outcome.
- Day has closed out matches efficiently, with second sets averaging 8.1 games in her wins.
- Stoiana's second sets in losses average 7.8 games.
- In H2H, second sets have had 9, 9, and 7 games.
BetBugs · Set 2 Total GameslostUnder 9.5Estimated chance55%

Sets1 of 3 landed

Signal quality High · Uncertainty band Strong lean · Market price 1.80
The read
Day's exceptional first-set record and H2H dominance make her a strong favorite to win set 1.
- Day has won the first set in 12 of her last 15 matches (80%).
- Stoiana has lost the first set in 5 of her last 10 matches.
- Day won the first set in all three H2H meetings.
BetBugs · Set 1 WinnerlostKayla DayEstimated chance70%
Signal quality Medium · Uncertainty band Lean · Market price 1.50
The read
The trend of straight-set results for both players and in H2H supports under 2.5 sets.
- Day has won in straight sets in 10 of her last 15 wins.
- Stoiana has lost in straight sets in 5 of her last 8 losses.
- H2H: 2 of 3 matches ended in straight sets.
BetBugs · Total SetswonUnder 2.5Estimated chance60%
Signal quality Medium · Uncertainty band Slight lean · Market price 2.60
The read
Day's strong start tendency and history of straight-set wins over Stoiana support a 2-0 outcome.
- H2H: Day won in straight sets in two of three meetings, including a 6-3 6-1 victory in their most recent match.
- Day's first-set win conversion rate is 85%, indicating she often starts strong.
- Stoiana has lost in straight sets in 3 of her last 7 matches.
BetBugs · Set BettinglostKayla Day 2-0Estimated chance55%

Match stats1 of 1 landed

Signal quality Medium · Uncertainty band Strong lean · Not priced
The read
The low frequency of tiebreaks in both players' recent matches and H2H suggests no tiebreak.
- Day's matches have featured a tiebreak in only 3 of her last 15 matches.
- Stoiana's matches have had a tiebreak in 4 of her last 15.
- H2H: Only 1 of 6 sets played went to a tiebreak.
BetBugs · Tiebreak in MatchwonNoEstimated chance65%
Signal quality Low · Uncertainty band Slight lean · Not priced
The read
Day's high double fault rate and H2H history push the total over 7.5 double faults.
- Day averages 6.0 double faults per match; Stoiana averages 3.9.
- Combined double fault rate is 9.9 per match.
- H2H: In their three matches, double faults totaled 4, 7, and 11.
BetBugs · Total Double FaultsOver 7.5Estimated chance55%
Signal quality Low · Uncertainty band Slight lean · Not priced
The read
The combined ace rates and grass surface slightly favor over 5.5 total aces.
- Day averages 4.0 aces per match; Stoiana averages 1.9.
- Combined ace rate suggests around 5.9 aces per match.
- Grass courts typically increase ace counts.
BetBugs · Total AcesOver 5.5Estimated chance52%

Head-to-Head

3-0 (3 meetings)

W6-3 6-1Kayla Day#145vMary Stoiana#146Apr 12, 2026

W6-3 0-6 7-6(4)Kayla Day#145vMary Stoiana#146Feb 6, 2026

W6-4 6-3Kayla Day#145vMary Stoiana#146Jul 30, 2025

Kayla Day dominates (3 meetings)3 total meetings

Kayla Day

10W 5L

6-4 6-1#173Mananchaya Sawangkaew

7-6(2) 6-2#99Hanne Vandewinkel

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

Mary Stoiana

9W 6L

6-4 3-6 6-0#132Rebeka Masarova

7-5 2-6 7-6(5)#216Celine Naef

4-6 7-6(8) 6-2#109Lulu Sun

6-7(4) 6-3 6-1#120Ashlyn Krueger

6-4 6-4#251Matilde Jorge

3-6 6-4 6-4#246Selena Janicijevic

7-5 6-7(8) 6-2#79Alycia Parks

6-3 6-2#192Angela Fita Boluda

6-4 1-6 6-4#209Maria Lourdes Carle

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

6-1 6-1#659Olga Govortsova

6-1 2-6 6-4#165Elizabeth Mandlik

6-1 6-4#632Thea Frodin

6-3 6-4#275Anastasia Tikhonova

6-3 6-1#145Kayla Day

Kayla Day

Mary Stoiana

Quick Take

Context

BetBugs edges

Kayla Day

Kayla Day

Under 21.5

Kayla Day -3.5

Kayla Day 2-0

Over 8.5

Under 2.5

Result0 of 1 landed

Games1 of 4 landed

Sets1 of 3 landed

Match stats1 of 1 landed

Head-to-Head

Kayla Day

Mary Stoiana