Katerina Siniakova vs Mary StoianaPrediction, Head-to-Head Results, and Stats
Upcoming match
- Tournament
- Japan Open - Osaka
- Level
- WTA 250
- Round
- Quarterfinals
- Surface
- Hard
- Date & time
- October 23 · 1:30 AM ET
Book odds
Set spread
Game spread
Record at prices like this
At 1.40 or shorter, Katerina Siniakova has won 57 of 76 (75%). That is level with the 75% the price implied.
Book prices with the bookmaker margin removed, across every priced match we hold for each player. Green beats the price by 3 points or more, red falls that far short, grey is within 3 points. Samples under ten are not shown.
Katerina Siniakova and Mary Stoiana meet next at the Japan Open - Osaka on October 23 on hard.
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Spread & Straight-Sets Form
Completed best-of-3 matches · Last 12 months
| Indicator | Siniakova | Stoiana | ||
|---|---|---|---|---|
| Indicator | Katerina Siniakova | Mary Stoiana | ||
| Wins in straight sets | 78% | 14/18 | 67% | 39/58 |
| Wins a set when losing | 53% | 10/19 | 57% | 16/28 |
| Goes to a deciding set | 38% | 14/37 | 41% | 35/86 |
| Covers −1.5 sets as favorite | 55% | 12/22 | 53% | 30/57 |
| Covers +1.5 sets as underdog | 77% | 10/13 | 68% | 17/25 |
| Tiebreak sets won | 43% | 3/7 | 71% | 17/24 |
| Wins after taking set 1 | 78% | 14/18 | 84% | 49/58 |
| Wins 2-0 after taking set 1 | 78% | 14/18 | 67% | 39/58 |
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.
Style Matchup
Playing styles and historical archetype record
Siniakova
🏹 Frontrunner
Stoiana
👑 The Complete Package
Matchup analysis
🏹 Frontrunner vs 👑 The Complete Package is historically tight (51% vs 49%, 1,038 matches). Neither style has a clear edge, so form, surface, and the head-to-head matter most.
Previous meetings
First career meeting
Siniakova and Stoiana have never faced each other on tour.
Prop Research
Hit rates on common betting markets · Last 90 days
| Outcome | Siniakova | Stoiana | ||
|---|---|---|---|---|
| Outcome | Katerina Siniakova | Mary Stoiana | ||
| 1 or more | 88% | 7/8 | 69% | 11/16 |
| 3 or more | 50% | 4/8 | 13% | 2/16 |
| 5 or more | 13% | 1/8 | 6% | 1/16 |
| 10 or more | 0% | 0/8 | 0% | 0/16 |
| 15 or more | 0% | 0/8 | 0% | 0/16 |
| 20 or more | 0% | 0/8 | 0% | 0/16 |
Player ROI
Hypothetical if you put 1u on each player to win every one of their matches · Last 90 days
| Metric | Siniakova | Stoiana |
|---|---|---|
| W-L | 5–4 | 13–7 |
| Avg odds | 2.44 | 1.84 |
| ROI % | -9.8% | -7.6% |
| Units P/L | -0.88u | -1.51u |
Small sample: ROI stabilizes with more matches; fewer than 10 in the window is noisy.
Travel
Last 30 days
| Metric | Siniakova | Stoiana |
|---|---|---|
| Countries | 3 | 2 |
| Events | 3 | 2 |
| Matches | 5 | 6 |
| Distance | 1,917 mi · 3,085 km | — |
| Route | ROU → CZE → SUI | TUR → SUI |
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
Siniakova has a higher win rate against shared opponents (75% vs Stoiana's 25%).
| Opponent | Siniakova | Stoiana |
|---|---|---|
| Peyton Stearns | W | L 76 06 46 |
| Paula Badosa | L 36 57 | L 46 26 |
| Yue Yuan | W 64 62 | W 63 46 64 |
| Rebeka Masarova | W 62 64 | L 46 63 06 |
Recent Form
Last five matches per player
Magda Linette
Japan Open - Osaka · 2nd Round
Oct 22
Peyton Stearns
Japan Open - Osaka · 1st Round
Oct 20
Liudmila Samsonova
Wuhan Open - Wuhan · 1st Round
Oct 13
Elina Svitolina
China Open - Beijing · 2nd Round
Oct 3
Magda Linette
China Open - Beijing · 1st Round
Oct 1
Naomi Osaka
U.S. Open - New York · 2nd Round
Sep 3
Elisabetta Cocciaretto
U.S. Open - New York · 1st Round
Sep 1
Madison Keys
Cincinnati Open - Cincinnati · 3rd Round
Aug 18
Moyuka Uchijima
Japan Open - Osaka · 2nd Round
Oct 22
Oleksandra Oliynykova
Japan Open - Osaka · 1st Round
Oct 20
Sayaka Ishii
Japan Open - Osaka · 3rd Round Qualifying
Oct 18
Rinko Matsuda
Japan Open - Osaka · 1st Round Qualifying
Oct 17
Julieta Pareja
W100 Templeton · 2nd Round
Oct 1
Hanna Chang
W100 Templeton · 1st Round
Oct 1
Paula Badosa
SP Open - Sao Paulo · Quarterfinals
Sep 18
Dominika Salkova
SP Open - Sao Paulo · 2nd Round
Sep 17
Win rate
Matches, sets and games won · Last 12 months · 37–86 matches
| Metric | Siniakova | Stoiana |
|---|---|---|
| Matches won | 49% | 67% |
| Sets won | 52% | 64% |
| Games won | 51% | 55% |