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 | 74% | 34/46 | 74% | 32/43 |
| Wins a set when losing | 40% | 8/20 | 65% | 13/20 |
| Goes to a deciding set | 30% | 20/66 | 38% | 24/63 |
| Covers −1.5 sets as favorite | 57% | 28/49 | 61% | 25/41 |
| Covers +1.5 sets as underdog | 54% | 7/13 | 72% | 13/18 |
| Tiebreak sets won | 65% | 11/17 | 75% | 12/16 |
| Wins after taking set 1 | 89% | 41/46 | 86% | 37/43 |
| Wins 2-0 after taking set 1 | 74% | 34/46 | 74% | 32/43 |
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
👑 The Complete Package
Stoiana
👑 The Complete Package
Matchup analysis
Both Kayla Day and Mary Stoiana are 👑 The Complete Package types. Mirror matchups usually come down to execution, fitness, and surface fit, across 3,166 matches in our dataset the historical split is about even.
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% | 8/8 | 93% | 14/15 |
| 3 or more | 75% | 6/8 | 33% | 5/15 |
| 5 or more | 50% | 4/8 | 0% | 0/15 |
| 10 or more | 0% | 0/8 | 0% | 0/15 |
| 15 or more | 0% | 0/8 | 0% | 0/15 |
| 20 or more | 0% | 0/8 | 0% | 0/15 |
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 | 5–6 | 9–7 |
| Avg odds | 2.98 | 2.01 |
| ROI % | -25.0% | +2.6% |
| Units P/L | -2.75u | +0.42u |
Travel
Last 30 days
| Metric | Day | Stoiana |
|---|---|---|
| Countries | 2 | 1 |
| Events | 2 | 1 |
| Matches | 3 | 1 |
| Distance | 411 mi · 662 km | 0 mi · 0 km |
| Route | CAN → POL | POL |
Host country from the tournament each match was played in, over the last 30 days. 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
Stoiana has a higher win rate against shared opponents (70% vs Day's 60%).
| Opponent | Day | Stoiana |
|---|---|---|
| Mai Hontama | L 76 36 46 | W 26 63 64 |
| Mananchaya Sawangkaew | L 46 16 | L 63 26 57 |
| Katrina Scott | W 64 62 | W 62 62 |
| Kayla Cross | W 64 64 | W 63 64 |
| Angela Fita Boluda | W 62 62 | L 36 26 |
| Eva Vedder | W 63 76 | W 63 76 |
| Elizabeth Mandlik | W 46 62 62 | L 16 62 46 |
| Madison Brengle | L 16 76 26 | W 62 62 |
| Louisa Chirico | W 63 61 | W 76 63 |
| Ekaterina Khayrutdinova | L 46 46 | W 61 61 |
Recent Form
Last five matches per player
Shuai Zhang
Cincinnati Open - Cincinnati · 1st Round
Aug 15
Coco Gauff
National Bank Open - Toronto · 2nd Round
Aug 5
Diane Parry
National Bank Open - Toronto · 1st Round
Aug 3
Mai Hontama
Odlum Brown VanOpen - Vancouver · 1st Round
Jul 28
Madison Keys
Wimbledon - London · 1st Round
Jun 30
Katarzyna Kawa
Wimbledon
Jun 25
Erika Andreeva
Wimbledon
Jun 24
Cadence Brace
Wimbledon
Jun 23
Tereza Valentova
Cincinnati Open - Cincinnati · 1st Round
Aug 15
Peyton Stearns
The Memphis Classic - Memphis · 1st Round
Jul 29
Yeon Woo Ku
W100 Evansville · Quarterfinals
Jul 24
Julieta Pareja
W100 Evansville · 2nd Round
Jul 23
Anna Sinclair Rogers
W100 Evansville · 1st Round
Jul 22
Mananchaya Sawangkaew
Hall of Fame Open - Newport · Quarterfinals
Jul 10
Iryna Shymanovich
Hall of Fame Open - Newport · 2nd Round
Jul 9
Katrina Scott
Hall of Fame Open - Newport · 1st Round
Jul 8
Rivalry momentum
Cumulative head-to-head lead over time
Win rate
Matches, sets and games won · Last 12 months · 64–66 matches
| Metric | Day | Stoiana |
|---|---|---|
| Matches won | 70% | 67% |
| Sets won | 66% | 66% |
| Games won | 56% | 56% |
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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