Marta Kostyuk vs Sloane StephensPrediction, Head-to-Head Results, and Stats
🇺🇦Marta Kostyuk
#10 · 23 yrs · Right-Handed
4w2 meetings · sets 4–0
🇺🇸Sloane Stephens
#133 · 33 yrs · Right-Handed
4w4Marta Kostyuk and Sloane Stephens have met 2 times since 2026; Marta Kostyuk leads 2–0. Their first meeting came at Cincinnati Open - Cincinnati in 2026 on hard. On hard courts Kostyuk leads 2–0. Kostyuk has won the last 2 meetings. Across all meetings Kostyuk has taken 4 sets to Stephens's 0. Their most recent meeting: Marta Kostyuk won at U.S. Open - New York (2026).
Spread & Straight-Sets Form
Completed best-of-3 matches · Last 12 months
| Indicator | Kostyuk | Stephens | ||
|---|---|---|---|---|
| Indicator | Marta Kostyuk | Sloane Stephens | ||
| Wins in straight sets | 72% | 26/36 | 72% | 13/18 |
| Wins a set when losing | 40% | 4/10 | 25% | 5/20 |
| Goes to a deciding set | 30% | 14/46 | 26% | 10/38 |
| Covers −1.5 sets as favorite | 59% | 20/34 | 44% | 4/9 |
| Covers +1.5 sets as underdog | 67% | 8/12 | 52% | 14/27 |
| Tiebreak sets won | 40% | 4/10 | 57% | 4/7 |
| Wins after taking set 1 | 91% | 30/33 | 78% | 14/18 |
| Wins 2-0 after taking set 1 | 79% | 26/33 | 72% | 13/18 |
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: 2 of 2 completed meetings ended in straight sets (Kostyuk 2, Stephens 0).
Style Matchup
Playing styles and historical archetype record
Kostyuk
👑 The Complete Package
Stephens
⚙️ Grinder
Matchup analysis
The 👑 The Complete Package archetype wins about 68% vs ⚙️ Grinder across 1,247 matches in our dataset: a stylistic lean toward Marta Kostyuk.
The Complete Package players often use elite serve & return and high bp conversion to pressure the grinder's relentless consistency.
Previous meetings
2 career meetings, newest first
Sep 2, 2026
U.S. Open - New York
H Hard · 2nd Round
Aug 18, 2026
Cincinnati Open - Cincinnati
H Hard · 3rd Round
Prop Research
Hit rates on common betting markets · Last 90 days
| Outcome | Kostyuk | Stephens | ||
|---|---|---|---|---|
| Outcome | Marta Kostyuk | Sloane Stephens | ||
| 1 or more | 100% | 12/12 | 73% | 11/15 |
| 3 or more | 75% | 9/12 | 7% | 1/15 |
| 5 or more | 58% | 7/12 | 0% | 0/15 |
| 10 or more | 0% | 0/12 | 0% | 0/15 |
| 15 or more | 0% | 0/12 | 0% | 0/15 |
| 20 or more | 0% | 0/12 | 0% | 0/15 |
Player ROI
Hypothetical if you put 1u on each player to win every one of their matches · Last 90 days
| Metric | Kostyuk | Stephens |
|---|---|---|
| W-L | 8–4 | 9–7 |
| Avg odds | 1.49 | 2.98 |
| ROI % | -11.8% | +21.4% |
| Units P/L | -1.41u | +3.43u |
Travel
Last 30 days
| Metric | Kostyuk | Stephens |
|---|---|---|
| Countries | 1 | 1 |
| Events | 1 | 1 |
| Matches | 1 | 2 |
| Distance | 0 mi · 0 km | 0 mi · 0 km |
| Route | UKR | UKR |
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
Kostyuk has a higher win rate against shared opponents (100% vs Stephens's 60%).
| Opponent | Kostyuk | Stephens |
|---|---|---|
| Mirra Andreeva | W 46 60 62 | L 46 26 |
| Anastasia Potapova | W 62 16 61 | W 62 64 |
| Veronika Podrez | W 63 64 | L 64 36 26 |
| Diane Parry | W 61 64 | W 62 64 |
| Tatjana Maria | W 63 60 | W 16 76 64 |
Recent Form
Last five matches per player
Liudmila Samsonova
Guadalajara Open Akron - Guadalajara · Quarterfinals
Sep 17
Linda Noskova
U.S. Open - New York · 4th Round
Sep 6
Ekaterina Alexandrova
U.S. Open - New York · 3rd Round
Sep 4
Sloane Stephens
U.S. Open - New York · 2nd Round
Sep 2
Storm Hunter
U.S. Open - New York · 1st Round
Aug 30
Coco Gauff
Cincinnati Open - Cincinnati · Quarterfinals
Aug 22
Mirra Andreeva
Cincinnati Open - Cincinnati · 4th Round
Aug 19
Sloane Stephens
Cincinnati Open - Cincinnati · 3rd Round
Aug 18
Peyton Stearns
Guadalajara Open Akron - Guadalajara · Quarterfinals
Sep 18
Janice Tjen
Guadalajara Open Akron - Guadalajara · 2nd Round
Sep 16
Carole Monnet
Guadalajara Open Akron - Guadalajara · 1st Round
Sep 14
Marta Kostyuk
U.S. Open - New York · 2nd Round
Sep 2
Clara Tauson
U.S. Open - New York · 1st Round
Sep 1
Mananchaya Sawangkaew
Philly Open - Philadelphia · 1st Round
Aug 25
Marta Kostyuk
Cincinnati Open - Cincinnati · 3rd Round
Aug 18
Anastasia Potapova
Cincinnati Open - Cincinnati · 2nd Round
Aug 17
Rivalry momentum
Cumulative head-to-head lead over time
Win rate
Matches, sets and games won · Last 12 months · 38–46 matches
| Metric | Kostyuk | Stephens |
|---|---|---|
| Matches won | 78% | 47% |
| Sets won | 72% | 48% |
| Games won | 59% | 48% |
Record by tier
Head-to-head record by tournament tier
| Stage | Kostyuk | Stephens |
|---|---|---|
| Grand Slam | 1 | 0 |
| WTA 1000 | 1 | 0 |
By surface
Head-to-head record per surface
| Surface | Kostyuk | Stephens |
|---|---|---|
| Hard | 2 | 0 |
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