Mary Stoiana vs Sayaka Ishii
Updated
Mary Stoiana beat Sayaka Ishii 6-4, 7-5, matching the Tennis Gauge model's pick. Mary Stoiana leads 1-0 in their head-to-head. Stoiana is 7-3 in their last 10, Ishii 7-3.
Pre-match prediction
The model makes Mary Stoiana a 95% favorite. At -909 the sportsbook implies 90% for Mary Stoiana, 5 points below the model's 95%.
Model minus book: +5 pts
Model minus book: -10 pts
Model estimates, not betting advice. How the numbers work · Expected value of Mary Stoiana at -909 · Model track record
Player comparison
| Mary Stoiana | Sayaka Ishii | |
|---|---|---|
| Tennis Gauge rating | 6874 | 6521 |
| Tour rank | WTA #133 | WTA #517 |
| Last 10 matches | 7-3 | 7-3 |
| Last 30 days | 2-1 | 6-1 |
| Current streak | 1 Loss | 1 Loss |
| Season record | 57-27 | 29-24 |
| UTR | 12.16 | 10.98 |
| Elo (52 weeks) | 1712 | – |
| Best surface | Grass | – |
| Worst surface | Clay | – |
Head to head
Mary Stoiana leads 1-0.
| Date | Winner | Score | Tournament |
|---|---|---|---|
| 18.10.2026 | Mary Stoiana | 6-4, 7-5 | Japan Osaka |
Recent form
Mary Stoiana, last 10
| Date | Opponent | Score | |
|---|---|---|---|
| 23.10.2026 | Katerina Siniakova | L | 6-1, 6-2 |
| 22.10.2026 | Moyuka Uchijima | W | 6-2, 2-6, 6-3 |
| 20.10.2026 | Oleksandra Oliynykova | W | 6-2, 6-3 |
| 18.10.2026 | Sayaka Ishii | W | 6-4, 7-5 |
| 17.10.2026 | Rinko Matsuda | W | 6-3, 7-6 |
| 01.10.2026 | Hanna Chang | W | 6-3, 6-4 |
| 01.10.2026 | Julieta Pareja | L | 7-5, 7-5 |
| 18.09.2026 | Paula Badosa | L | 6-4, 6-2 |
| 17.09.2026 | Dominika Salkova | W | 7-6, 6-1 |
| 16.09.2026 | Claire Liu | W | 6-3, 7-5 |
Sayaka Ishii, last 10
| Date | Opponent | Score | |
|---|---|---|---|
| 25.10.2026 | Yulia Putintseva | L | 4-6, 6-2, 6-3 |
| 24.10.2026 | Kyoka Okamura | W | 6-4, 6-3 |
| 18.10.2026 | Mary Stoiana | L | 6-4, 7-5 |
| 17.10.2026 | Elina Avanesyan | W | 6-3 |
| 26.09.2026 | Hiromi Abe | L | 6-3, 6-2 |
| 25.09.2026 | Rion Itaya | W | 6-2, 6-0 |
| 24.09.2026 | Natsumi Kawaguchi | W | 5-7, 7-6, 6-2 |
| 23.09.2026 | Nagi Hanatani | W | 7-6, 6-2 |
| 22.09.2026 | Rira Kosaka | W | 6-3, 6-1 |
| 21.09.2026 | Miku Suzuki | W | 6-0, 6-0 |
Common opponents, last 12 months
| Opponent | Mary Stoiana | Sayaka Ishii |
|---|---|---|
| Hanna Chang | 2-0 W 6-3, 6-4, W 3-6, 7-6, 6-2 |
0-1 L 7-5, 6-2 |
| Kayla Cross | 3-0 W 6-3, 6-4, W 5-2, W 7-6, 6-7, 6-2 |
0-1 L 6-2, 6-3 |
Earlier previews of this matchup
- 2026-10-17: WTA Osaka (IX) (Japan), model gave Mary Stoiana 95% at -909
Mary Stoiana vs Sayaka Ishii: quick answers
Who won Mary Stoiana vs Sayaka Ishii?
Mary Stoiana beat Sayaka Ishii 6-4, 7-5, matching the Tennis Gauge model's pick.
What is the head-to-head record between Mary Stoiana and Sayaka Ishii?
Mary Stoiana leads 1-0. Their most recent meeting was on October 18, 2026, won by Mary Stoiana 6-4, 7-5 at Japan Osaka.
Who is in better form, Mary Stoiana or Sayaka Ishii?
Mary Stoiana is 7-3 in their last 10 matches (current streak: 1 Loss). Sayaka Ishii is 7-3 (current streak: 1 Loss).
How does Tennis Gauge rate Mary Stoiana and Sayaka Ishii?
Mary Stoiana is rated 6874 (WTA #133) and Sayaka Ishii is rated 6521 (WTA #517). Ratings update after every match and weight recent results and opponent strength.
What are the odds for Mary Stoiana vs Sayaka Ishii?
Mary Stoiana is priced at -909 and Sayaka Ishii at +556, which implies a 90% and 15% chance to win. The model rates Mary Stoiana 5 points higher than the odds do (95% vs 90%), which Tennis Gauge counts as value.