Kimberly Birrell
all rivalries →| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Donna Vekic | 2 | 2 | 4 | Oct 31, 2025 | H2H |
| Petra Marcinko | 2 | 1 | 3 | Aug 30, 2026 | H2H |
| Ann Li | 0 | 3 | 3 | Jun 16, 2026 | H2H |
| Victoria Mboko | 0 | 3 | 3 | Mar 6, 2026 | H2H |
| Anastasia Potapova | 3 | 0 | 3 | Jan 13, 2026 | H2H |
H2H data updated: 2026-09-13 00:00 UTC
Kimberly Birrell vs Sara Saito H2H: 1-0
Kimberly Birrell holds a 1–0 lead over Sara Saito in their WTA head-to-head. Across 1 main-draw meeting, Kimberly Birrell leads 1–0 on hard courts. Most recently, Kimberly Birrell won the 2024 Japan Women's Open quarterfinal 7-5 6-4.
Want to explore more matchups? Advanced rivalry search lets you browse current and historical rivalries, unbeaten records, or every matchup for a player.
H2H
1
–
0
1 main-draw meetings
H2H Match Log
| Player | Score | Player | Match Data | Date | Round | Tournament | Category | Surface |
|---|---|---|---|---|---|---|---|---|
| Kimberly Birrell | 7-5 6-4 | Sara Saito | Match data | Oct 19, 2024* | QF | Japan Women's Open | WTA 250 | Hard |
Estimated match date where the exact historical date is unavailable. 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Kimberly Birrell | #71 | #60 | 999 | 1,834 | 48 | 62 | 43.6% | 0 | 0 | 0 | 0 | 0 | 0 |
| Sara Saito | #244 | #150 | 480 | 1,560 | 2 | 3 | 40.0% | 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 | Kimberly Birrell | Sara Saito | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 17 | — | — | — | — | — | — | — | 2024 | 2–3 | 40.0% | #150 | 1,504 | 0 | 0 |
| 18 | 2016 | 1–2 | 33.3% | #516 | 1,508 | 0 | 0 | — | — | — | — | — | — | — |
| 21 | 2019 | 3–2 | 60.0% | #250 | 1,516 | 0 | 0 | — | — | — | — | — | — | — |
| 23 | 2021 | 2–3 | 40.0% | #741 | 1,517 | 0 | 0 | — | — | — | — | — | — | — |
| 24 | 2022 | 1–1 | 50.0% | #174 | 1,486 | 0 | 0 | — | — | — | — | — | — | — |
| 25 | 2023 | 8–10 | 44.4% | #115 | 1,557 | 0 | 0 | — | — | — | — | — | — | — |
| 26 | 2024 | 7–8 | 46.7% | #113 | 1,688 | 0 | 0 | — | — | — | — | — | — | — |
| 27 | 2025 | 14–18 | 43.8% | #98 | 1,678 | 0 | 0 | — | — | — | — | — | — | — |
| 28 | 2026 | 12–18 | 40.0% | #71 | 1,695 | 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 | Kimberly Birrell | Sara Saito | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2023 | 1500 | 99.7 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 17 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2024 | 1505 | 105.1 | +0.42 | -2.68 | 0.899 | 48.2% | +4 | — | — | 40.0% | -0.80 | — | 1–0 | — | +0.03 |
| 18 | 2016 | 1509 | 103.2 | -0.55 | -0.09 | 0.637 | 40.5% | +9 | — | — | 33.3% | -1.67 | — | — | — | -0.35 | 2025 | 1463 | 100.3 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 19 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2026 | 1441 | 99.8 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 20 | 2018 | 1476 | 98.5 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 21 | 2019 | 1516 | 110.7 | -0.48 | -1.55 | 0.850 | 46.8% | +33 | — | — | 50.0% | -0.33 | 2–0 | 1–0 | — | -0.02 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 23 | 2021 | 1518 | 104.1 | -2.12 | -0.93 | 0.929 | 49.0% | +30 | — | — | 36.4% | -1.09 | 1–0 | 0–1 | — | +0.48 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 24 | 2022 | 1486 | 95.4 | -2.40 | +1.40 | 0.815 | 45.9% | — | — | — | 40.0% | -1.40 | 1–0 | — | — | +0.14 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 25 | 2023 | 1557 | 123.2 | -1.73 | +1.11 | 1.007 | 50.1% | +43 | -88 | — | 46.2% | -0.08 | 1–2 (33%) | 3–2 (60%) | 100.5 | +0.87 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 26 | 2024 | 1689 | 122.0 | +0.40 | -1.41 | 0.962 | 49.5% | +9 | — | -77 | 43.3% | -0.43 | 1–1 | 0–4 (0%) | — | +0.83 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 27 | 2025 | 1679 | 134.0 | -1.71 | -2.60 | 0.866 | 46.9% | +54 | -259 | -143 | 44.7% | -0.36 | 6–6 (50%) | 5–6 (45%) | 97.7 | -0.02 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 28 | 2026 | 1695 | 133.4 | -1.46 | -0.89 | 0.908 | 48.1% | +45 | -270 | -78 | 42.7% | -0.55 | 7–8 (47%) | 3–7 (30%) | 96.3 | -0.67 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | — | 1835 | 128.4 | -1.23 | -0.86 | 0.914 | 48.2% | +39 | -206 | -98 | 43.7% | -0.46 | 19–17 (53%) | 12–20 (38%) | 96.8 | +1.15 | — | 1560 | 102.8 | +0.42 | -2.68 | 0.899 | 48.2% | +4 | — | — | 40.0% | -0.80 | — | 1–0 | — | +0.60 |
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.
Sara Saito
all rivalries →| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Bernarda Pera | 0 | 1 | 1 | Oct 31, 2024 | H2H |
| Sayaka Ishii | 0 | 1 | 1 | Oct 24, 2024 | H2H |
| Kimberly Birrell | 0 | 1 | 1 | Oct 19, 2024 | H2H |
| Elina Avanesyan | 1 | 0 | 1 | Oct 18, 2024 | H2H |
| Jessica Bouzas Maneiro | 1 | 0 | 1 | Oct 17, 2024 | H2H |