Sayaka Ishii
all rivalries →| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Emma Raducanu | 0 | 1 | 1 | Mar 19, 2025 | H2H |
| Diana Shnaider | 0 | 1 | 1 | Oct 26, 2024 | H2H |
| Zeynep Sonmez | 1 | 0 | 1 | Oct 25, 2024 | H2H |
| Sara Saito | 1 | 0 | 1 | Oct 24, 2024 | H2H |
| Katerina Siniakova | 0 | 1 | 1 | Aug 21, 2024 | H2H |
H2H data updated: 2026-10-18 00:00 UTC
Sayaka Ishii vs Mary Stoiana
Compare the head-to-head record, career totals, season-by-season performance, and match log for Sayaka Ishii vs Mary Stoiana.
Want to explore more matchups? Advanced rivalry search lets you browse current and historical rivalries, unbeaten records, or every matchup for a player.
H2H
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0 main-draw meetings
H2H Match Log
| Player | Score | Player | Match Data | Date | Round | Tournament | Category | Surface |
|---|---|---|---|---|---|---|---|---|
| Sayaka Ishii | Live | Mary Stoiana | Match data | Oct 18, 2026 | Q2 | Japan Women's Open | WTA 250 | Hard |
Scheduled and live matches do not affect the H2H record until recorded as complete. Arrows show an edition's recorded category and documented modern equivalent; unresolved editions keep their recorded category. Asterisked totals include editions mapped from documented historical predecessor categories. Mapping details.
Career Comparison
| Player | Current | Peak | Pts | Elo | W | L | Win % | GS | 1000 including documented historical predecessor categories | Finals | 500 including documented historical predecessor categories | 250 including documented historical predecessor categories | Titles |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sayaka Ishii | #466 | #188 | 376 | 1,580 | 2 | 3 | 40.0% | 0 | 0 | 0 | 0 | 0 | 0 |
| Mary Stoiana | #114 | #114 | 666 | 1,688 | 2 | 6 | 25.0% | 0 | 0 | 0 | 0 | 0 | 0 |
Career Progression by Age
Seasons are aligned by the age each player spent most of that calendar year. GS and Titles are cumulative career totals through that season.
| Age | Sayaka Ishii | Mary Stoiana | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 18 | 2024 | 2–2 | 50.0% | #196 | 1,571 | 0 | 0 | — | — | — | — | — | — | — |
| 19 | 2025 | 0–1 | 0.0% | #398 | 1,565 | 0 | 0 | — | — | — | — | — | — | — |
| 23 | — | — | — | — | — | — | — | 2026 | 2–6 | 25.0% | #114 | 1,685 | 0 | 0 |
Advanced Statistics Comparison by Age
Seasons are aligned by the age each player spent most of that calendar year. Metrics use eligible main-draw results; point statistics use matches with detailed data. Bold green marks the stronger value when both underlying samples are sufficient. Lower is better for Schedule because a negative value means a tougher schedule. Career Schedule is normalized per 100 matches.
| Age | Sayaka Ishii | Mary Stoiana | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | Elo | P+ | Serve+ | Return+ | PD | TPW% | Hard Elo | Clay Elo | Grass Elo | Set Win % | Set Margin | Dec. Set | Tiebreak | Pressure+ | Schedule | Yr | Elo | P+ | Serve+ | Return+ | PD | TPW% | Hard Elo | Clay Elo | Grass Elo | Set Win % | Set Margin | Dec. Set | Tiebreak | Pressure+ | Schedule | |
| 16 | 2022 | 1480 | 95.5 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 17 | 2023 | 1472 | 99.9 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 18 | 2024 | 1572 | 119.4 | +0.69 | +1.59 | 1.162 | 53.4% | +18 | — | — | 62.5% | +1.50 | 1–1 | 1–1 | — | +0.19 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 19 | 2025 | 1566 | 99.7 | +0.48 | +0.58 | 0.508 | 35.7% | — | — | — | 0.0% | -4.50 | — | — | — | -0.08 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 20 | 2026 | 1522 | 99.5 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 21 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2024 | 1487 | 97.8 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 22 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2025 | 1513 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 23 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2026 | 1686 | 115.8 | -1.27 | -1.47 | 0.900 | 47.8% | -40 | — | — | 36.8% | -1.16 | 0–3 (0%) | 2–1 (67%) | 97.1 | -0.61 |
| Career | — | 1580 | 108.9 | +0.64 | +1.34 | 0.955 | 48.9% | +18 | — | — | 50.0% | +0.30 | 1–1 | 1–1 | — | +2.75 | — | 1688 | 111.7 | -1.27 | -1.47 | 0.900 | 47.8% | -40 | — | — | 36.8% | -1.16 | 0–3 (0%) | 2–1 (67%) | 97.1 | -7.63 |
Career Rivalries
Each player's five most-played main-draw opponents. The current matchup is highlighted when it appears in a player's top five.
Mary Stoiana
all rivalries →| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Paula Badosa | 0 | 1 | 1 | Sep 18, 2026 | H2H |
| Dominika Salkova | 1 | 0 | 1 | Sep 17, 2026 | H2H |
| Claire Liu | 1 | 0 | 1 | Sep 16, 2026 | H2H |
| Alexandra Eala | 0 | 1 | 1 | Sep 2, 2026 | H2H |
| Tereza Valentova | 0 | 1 | 1 | Aug 14, 2026 | H2H |