Kayla Day vs Mary StoianaPrediction, Head-to-Head Results, and Stats
Kayla Day and Mary Stoiana have met 4 times since 2025; Kayla Day leads 3–1. Their first meeting came at W75 Lexington in 2025 on hard. On hard courts Day leads 2–0. 1 of their meetings has been a final, with Day leading those 1–0. Across all meetings Day has taken 6 sets to Stoiana's 3. Their most recent meeting: Mary Stoiana won at Lexus Ilkley Open - Ilkley (2026).
Spread & Straight-Sets Form
Completed best-of-3 matches · Last 12 months
| Indicator | Day | Stoiana | ||
|---|---|---|---|---|
| Indicator | Kayla Day | Mary Stoiana | ||
| Wins in straight sets | 78% | 39/50 | 67% | 37/55 |
| Wins a set when losing | 35% | 8/23 | 59% | 17/29 |
| Goes to a deciding set | 26% | 19/73 | 42% | 35/84 |
| Covers −1.5 sets as favorite | 59% | 34/58 | 51% | 28/55 |
| Covers +1.5 sets as underdog | 62% | 8/13 | 68% | 17/25 |
| Tiebreak sets won | 52% | 11/21 | 71% | 17/24 |
| Wins after taking set 1 | 92% | 44/48 | 84% | 46/55 |
| Wins 2-0 after taking set 1 | 81% | 39/48 | 67% | 37/55 |
Colored rows are higher-is-better: green above 50%, red below. Favorite/underdog set by book odds; cover rows count only matches with odds on record. Head-to-head: 3 of 4 completed meetings ended in straight sets (Day 2, Stoiana 1).
Style Matchup
Playing styles and historical archetype record
Day
💥 Big Hitter
Stoiana
👑 The Complete Package
Matchup analysis
💥 Big Hitter vs 👑 The Complete Package is historically tight (48% vs 52%, 4,271 matches). Neither style has a clear edge, so form, surface, and the head-to-head matter most.
Previous meetings
4 career meetings, newest first
Jun 9, 2026
Lexus Ilkley Open - Ilkley
G Grass · 1st Round
Apr 12, 2026
W35 Boca Raton
C Clay · Final
Feb 6, 2026
W50 Orlando 1
H Hard · Quarterfinals
Jul 30, 2025
W75 Lexington
H Hard · Round of 32
Prop Research
Hit rates on common betting markets · Last 90 days
| Outcome | Day | Stoiana | ||
|---|---|---|---|---|
| Outcome | Kayla Day | Mary Stoiana | ||
| 1 or more | 100% | 13/13 | 75% | 12/16 |
| 3 or more | 92% | 12/13 | 25% | 4/16 |
| 5 or more | 69% | 9/13 | 6% | 1/16 |
| 10 or more | 0% | 0/13 | 0% | 0/16 |
| 15 or more | 0% | 0/13 | 0% | 0/16 |
| 20 or more | 0% | 0/13 | 0% | 0/16 |
Player ROI
Hypothetical if you put 1u on each player to win every one of their matches · Last 90 days
| Metric | Day | Stoiana |
|---|---|---|
| W-L | 11–7 | 10–8 |
| Avg odds | 1.92 | 1.92 |
| ROI % | -12.2% | -18.4% |
| Units P/L | -2.20u | -3.32u |
Travel
Last 30 days
| Metric | Day | Stoiana |
|---|---|---|
| Countries | 3 | 2 |
| Events | 3 | 2 |
| Matches | 8 | 5 |
| Distance | — | — |
| Route | UKR → USA → TUR | BRA → TUR |
Host country from each tournament in the last 30 days, including the current event even when a player arrived on a bye. Route is the order of countries visited; consecutive stops in the same country are shown once. Distance is the great-circle total between host cities, shown only when every stop in the window is geocoded. A rough fatigue signal, not a headline stat.
Common opponents
Results vs. opponents both players faced · Last 12 months
Across 10 shared opponents, both Day and Stoiana posted a 60% win rate.
| Opponent | Day | Stoiana |
|---|---|---|
| Julieta Pareja | L 36 16 | L 57 57 |
| Amelie Van Impe | L 26 46 | W 64 60 |
| Anna Sinclair Rogers | W 61 60 | W 61 61 |
| Paula Badosa | L 46 36 | L 46 26 |
| Claire Liu | W 64 61 | W 63 75 |
| Julia Riera | W 76 67 64 | L 64 67 36 |
| Yue Yuan | W 26 75 63 | W 63 46 64 |
| Katie Swan | W 67 62 62 | W 67 63 63 |
| Hanyu Guo | W 75 62 | L 67 76 57 |
| Mai Hontama | L 76 36 46 | W 26 63 64 |
Recent Form
Last five matches per player
Amelie Van Impe
W100 Templeton · 1st Round
Sep 30
Janae Preston
W50 Berkeley · Final
Sep 27
Ella Mcdonald
W50 Berkeley · Semifinals
Sep 26
Anna Sinclair Rogers
W50 Berkeley · Quarterfinals
Sep 25
Evialina Laskevich
W50 Berkeley · 2nd Round
Sep 24
Arina Bulatova
W50 Berkeley · 1st Round
Sep 23
Liudmila Samsonova
Guadalajara Open Akron - Guadalajara · 2nd Round
Sep 17
Elvina Kalieva
Guadalajara Open Akron - Guadalajara · 1st Round
Sep 14
Hanna Chang
W100 Templeton · 1st Round
Oct 1
Julieta Pareja
W100 Templeton · 2nd Round
Oct 1
Paula Badosa
SP Open - Sao Paulo · Quarterfinals
Sep 18
Dominika Salkova
SP Open - Sao Paulo · 2nd Round
Sep 17
Claire Liu
SP Open - Sao Paulo · 1st Round
Sep 16
Julia Riera
Kia Open - Barranquilla · 2nd Round
Sep 10
Jazmin Ortenzi
Kia Open - Barranquilla · 1st Round
Sep 9
Alexandra Eala
U.S. Open - New York · 1st Round
Sep 2
Rivalry momentum
Cumulative head-to-head lead over time
Win rate
Matches, sets and games won · Last 12 months · 73–84 matches
| Metric | Day | Stoiana |
|---|---|---|
| Matches won | 68% | 65% |
| Sets won | 65% | 63% |
| Games won | 56% | 54% |
Record by tier
Head-to-head record by tournament tier
| Stage | Day | Stoiana |
|---|---|---|
| Finals | 1 | 0 |
| WTA 125 | 0 | 1 |
| ITF W35 | 1 | 0 |
| ITF W50 | 1 | 0 |
| ITF W75 | 1 | 0 |
By surface
Head-to-head record per surface
| Surface | Day | Stoiana |
|---|---|---|
| Hard | 2 | 0 |
| Clay | 1 | 0 |
| Grass | 0 | 1 |
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