Katerina Siniakova vs Naomi OsakaPrediction, Head-to-Head Results, and Stats
🇨🇿Katerina Siniakova
#87 · 30 yrs · Right-Handed
4 meetings · sets 3–6
🇯🇵Naomi Osaka
#18 · 28 yrs · Right-Handed
Katerina Siniakova and Naomi Osaka have met 4 times since 2018; Naomi Osaka leads 3–1. Their first meeting came at Doha in 2018 on hard. On hard courts Osaka leads 2–0. Osaka has won the last 2 meetings. Across all meetings Siniakova has taken 3 sets to Osaka's 6. Their most recent meeting: Naomi Osaka won at U.S. Open - New York (2026).
Spread & Straight-Sets Form
Completed best-of-3 matches · Last 12 months
| Indicator | Siniakova | Osaka | ||
|---|---|---|---|---|
| Indicator | Katerina Siniakova | Naomi Osaka | ||
| Wins in straight sets | 76% | 13/17 | 67% | 22/33 |
| Wins a set when losing | 50% | 9/18 | 27% | 3/11 |
| Goes to a deciding set | 37% | 13/35 | 32% | 14/44 |
| Covers −1.5 sets as favorite | 52% | 11/21 | 55% | 18/33 |
| Covers +1.5 sets as underdog | 75% | 9/12 | 60% | 6/10 |
| Tiebreak sets won | 43% | 3/7 | 71% | 10/14 |
| Wins after taking set 1 | 76% | 13/17 | 94% | 32/34 |
| Wins 2-0 after taking set 1 | 76% | 13/17 | 65% | 22/34 |
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 (Siniakova 1, Osaka 2).
Style Matchup
Playing styles and historical archetype record
Siniakova
🏹 Frontrunner
Osaka
💥 Big Hitter
Matchup analysis
🏹 Frontrunner vs 💥 Big Hitter is historically tight (50% vs 50%, 1,247 matches). Neither style has a clear edge, so form, surface, and the head-to-head matter most.
Previous meetings
4 career meetings, newest first
Sep 3, 2026
U.S. Open - New York
H Hard · 2nd Round
Jul 2, 2025
Wimbledon - London
G Grass · 2nd Round
May 29, 2019
Roland Garros
C Clay · Round of 32
Feb 14, 2018
Doha
H Hard · Round of 64
Prop Research
Hit rates on common betting markets · Last 90 days
| Outcome | Siniakova | Osaka | ||
|---|---|---|---|---|
| Outcome | Katerina Siniakova | Naomi Osaka | ||
| 1 or more | 83% | 5/6 | 92% | 12/13 |
| 3 or more | 50% | 3/6 | 77% | 10/13 |
| 5 or more | 17% | 1/6 | 69% | 9/13 |
| 10 or more | 0% | 0/6 | 31% | 4/13 |
| 15 or more | 0% | 0/6 | 0% | 0/13 |
| 20 or more | 0% | 0/6 | 0% | 0/13 |
Player ROI
Hypothetical if you put 1u on each player to win every one of their matches · Last 90 days
| Metric | Siniakova | Osaka |
|---|---|---|
| W-L | 3–3 | 9–4 |
| Avg odds | 2.80 | 1.46 |
| ROI % | -18.3% | -14.3% |
| Units P/L | -1.10u | -1.86u |
Small sample: ROI stabilizes with more matches; fewer than 10 in the window is noisy.
Travel
Last 30 days
| Metric | Siniakova | Osaka |
|---|---|---|
| Countries | 1 | 1 |
| Events | 1 | 1 |
| Matches | 2 | 3 |
| Distance | 0 mi · 0 km | 0 mi · 0 km |
| Route | ROU | ROU |
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
Osaka has a higher win rate against shared opponents (100% vs Siniakova's 50%).
| Opponent | Siniakova | Osaka |
|---|---|---|
| Elisabetta Cocciaretto | W 63 62 | W 46 64 63 |
| Leylah Fernandez | W 57 64 76 | W 64 64 |
| Panna Udvardy | W 61 62 | W 62 64 |
| Diana Shnaider | L 16 62 57 | W 61 62 |
| Camila Osorio | L 16 46 | W 62 75 |
| Maria Victoria Quinde Serrano | L 16 46 | W 62 75 |
Recent Form
Last five matches per player
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
Jessica Bouzas Maneiro
Cincinnati Open - Cincinnati · 2nd Round
Aug 16
Kamilla Rakhimova
National Bank Open - Toronto · 2nd Round
Aug 4
Nikola Bartunkova
Wimbledon - London · 2nd Round
Jul 1
Karolina Muchova
China Open - Beijing · 4th Round
Oct 6
Sara Bejlek
China Open - Beijing · 3rd Round
Oct 4
Maria Timofeeva
China Open - Beijing · 2nd Round
Oct 2
Elena Rybakina
U.S. Open - New York · 4th Round
Sep 7
Elise Mertens
U.S. Open - New York · 3rd Round
Sep 6
Katerina Siniakova
U.S. Open - New York · 2nd Round
Sep 3
Anastasia Zakharova
U.S. Open - New York · 1st Round
Sep 1
Elena Rybakina
National Bank Open - Toronto · Quarterfinals
Aug 12
Rivalry momentum
Cumulative head-to-head lead over time
Win rate
Matches, sets and games won · Last 12 months · 35–44 matches
| Metric | Siniakova | Osaka |
|---|---|---|
| Matches won | 49% | 75% |
| Sets won | 52% | 68% |
| Games won | 51% | 56% |
Record by tier
Head-to-head record by tournament tier
| Stage | Siniakova | Osaka |
|---|---|---|
| Grand Slam | 1 | 2 |
| WTA 500 | 0 | 1 |
By surface
Head-to-head record per surface
| Surface | Siniakova | Osaka |
|---|---|---|
| Hard | 0 | 2 |
| Clay | 1 | 0 |
| Grass | 0 | 1 |
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