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: 2026-10-30 00:00 UTC
Kimberly Birrell vs Janice Tjen H2H: 0-1
Janice Tjen holds a 1–0 lead over Kimberly Birrell in their WTA head-to-head. Across 1 main-draw meeting, Janice Tjen leads 1–0 on hard courts. Most recently, Janice Tjen won the 2025 Chennai Open final 6-4 6-3.
Want to explore more matchups? Advanced rivalry search lets you browse current and historical rivalries, unbeaten records, or every matchup for a player.
H2H
0
–
1
1 main-draw meetings
H2H Match Log
| Player | Score | Player | Match Data | Date | Round | Tournament | Category | Surface |
|---|---|---|---|---|---|---|---|---|
| Janice Tjen | 6-4 6-3 | Kimberly Birrell | Match data | Nov 2, 2025 | F | Chennai Open | WTA 250 | Hard |
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 | #41 | #40 | 1,280 | 1,841 | 55 | 66 | 45.5% | 0 | 0 | 0 | 0 | 1 | 1 |
| Janice Tjen | #47 | #35 | 1,341 | 1,792 | 26 | 31 | 45.6% | 0 | 0 | 0 | 0 | 1 | 1 |
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 | Janice Tjen | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 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 | 1,518 | 0 | 0 | 2025 | 10–3 | 76.9% | #56 | 1,760 | 0 | 1 |
| 24 | 2022 | 1–1 | 50.0% | #174 | 1,486 | 0 | 0 | 2026 | 16–28 | 36.4% | #47 | 1,702 | 0 | 1 |
| 25 | 2023 | 8–10 | 44.4% | #115 | 1,557 | 0 | 0 | — | — | — | — | — | — | — |
| 26 | 2024 | 7–8 | 46.7% | #113 | 1,688 | 0 | 0 | — | — | — | — | — | — | — |
| 27 | 2025 | 15–19 | 44.1% | #98 | 1,695 | 0 | 0 | — | — | — | — | — | — | — |
| 28 | 2026 | 18–21 | 46.2% | #41 | 1,730 | 0 | 1 | — | — | — | — | — | — | — |
Surface Results by Age
Seasons are aligned by the age each player spent most of that calendar year. Results cover completed main-draw matches. Bold green marks the higher win percentage when both players have at least 5 matches on that surface at the aligned age.
| Age | Kimberly Birrell | Janice Tjen | ||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | Hard | Clay | Grass | Yr | Hard | Clay | Grass | |||||||||||||||||||
| W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | |||
| 18 | 2016 | 1 | 2 | 3 | 33.3% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 21 | 2019 | 3 | 2 | 5 | 60.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 23 | 2021 | 2 | 3 | 5 | 40.0% | — | — | — | — | — | — | — | — | 2025 | 10 | 3 | 13 | 76.9% | — | — | — | — | — | — | — | — |
| 24 | 2022 | 1 | 1 | 2 | 50.0% | — | — | — | — | — | — | — | — | 2026 | 13 | 19 | 32 | 40.6% | 2 | 5 | 7 | 28.6% | 1 | 4 | 5 | 20.0% |
| 25 | 2023 | 6 | 7 | 13 | 46.2% | 1 | 2 | 3 | 33.3% | 1 | 1 | 2 | 50.0% | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 26 | 2024 | 5 | 7 | 12 | 41.7% | — | — | — | — | 2 | 1 | 3 | 66.7% | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 27 | 2025 | 13 | 12 | 25 | 52.0% | 0 | 3 | 3 | 0.0% | 2 | 4 | 6 | 33.3% | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 28 | 2026 | 15 | 15 | 30 | 50.0% | 1 | 2 | 3 | 33.3% | 2 | 4 | 6 | 33.3% | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | — | 46 | 49 | 95 | 48.4% | 2 | 7 | 9 | 22.2% | 7 | 10 | 17 | 41.2% | — | 23 | 22 | 45 | 51.1% | 2 | 5 | 7 | 28.6% | 1 | 4 | 5 | 20.0% |
Performance Progression by Age
Seasons are aligned by the age each player spent most of that calendar year. Detailed serve and return statistics available for 102/122 of Kimberly Birrell's and 49/57 of Janice Tjen's main draw matches. Sample is shown as matches with detailed serve and return statistics / total main draw matches. Bold green marks the stronger value when both stat samples contain at least 5 matches; lower is better for DFs/M.
| Age | Kimberly Birrell | Janice Tjen | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | Sample | Aces/M | DFs/M | 1st Sv% | 1st Pts% | 2nd Pts% | BP Saved% | BP Conv% | Svc Pts% | Ret Pts% | Yr | Sample | Aces/M | DFs/M | 1st Sv% | 1st Pts% | 2nd Pts% | BP Saved% | BP Conv% | Svc Pts% | Ret Pts% | |
| 18 | 2016 | 3/3 | 2.0 | 2.0 | 62.8% | 47.3% | 53.1% | 47.6% | 50.0% | 50.4% | 31.6% | — | —/— | — | — | — | — | — | — | — | — | — |
| 21 | 2019 | 5/5 | 2.6 | 4.8 | 62.8% | 63.4% | 36.3% | 60.9% | 38.9% | 53.5% | 39.6% | — | —/— | — | — | — | — | — | — | — | — | — |
| 23 | 2021 | 5/5 | 2.6 | 3.6 | 64.2% | 63.4% | 42.2% | 53.1% | 44.5% | 55.8% | 41.1% | 2025 | 8/13 | 4.3 | 4.5 | 57.4% | 73.2% | 47.7% | 65.9% | 37.1% | 62.4% | 43.1% |
| 24 | 2022 | 2/2 | 1.5 | 8.0 | 56.7% | 55.4% | 42.7% | 42.3% | 23.2% | 49.9% | 40.8% | 2026 | 41/44 | 4.1 | 3.2 | 59.4% | 67.8% | 43.5% | 49.8% | 34.6% | 57.6% | 38.5% |
| 25 | 2023 | 18/18 | 1.6 | 4.4 | 60.7% | 62.1% | 44.2% | 52.1% | 49.4% | 55.1% | 45.2% | — | —/— | — | — | — | — | — | — | — | — | — |
| 26 | 2024 | 15/15 | 2.2 | 3.5 | 64.0% | 63.3% | 47.4% | 52.6% | 48.1% | 57.6% | 40.8% | — | —/— | — | — | — | — | — | — | — | — | — |
| 27 | 2025 | 17/34 | 2.1 | 6.4 | 59.2% | 64.9% | 40.0% | 53.6% | 42.7% | 54.7% | 39.2% | — | —/— | — | — | — | — | — | — | — | — | — |
| 28 | 2026 | 37/40 | 1.8 | 5.6 | 63.8% | 61.9% | 42.5% | 48.5% | 55.4% | 54.8% | 43.2% | — | —/— | — | — | — | — | — | — | — | — | — |
| Career | — | 102/122 | 1.9 | 5.0 | 62.3% | 62.2% | 43.1% | 51.3% | 49.2% | 55.0% | 41.9% | — | 49/57 | 4.1 | 3.4 | 59.1% | 68.7% | 44.2% | 52.6% | 35.0% | 58.4% | 39.2% |
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 | Janice Tjen | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | |
| 18 | 2016 | 1509 | 103.2 | -0.55 | -0.09 | 0.637 | 40.5% | +9 | — | — | 33.3% | -1.67 | — | — | — | -0.35 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 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 | 2025 | 1760 | 132.2 | +2.30 | -0.55 | 1.147 | 52.4% | +37 | — | — | 70.0% | +1.13 | 3–1 (75%) | 4–1 (80%) | 105.2 | +1.23 |
| 24 | 2022 | 1486 | 95.4 | -2.40 | +1.40 | 0.815 | 45.9% | — | — | — | 40.0% | -1.40 | 1–0 | — | — | +0.14 | 2026 | 1703 | 138.9 | +0.80 | -3.68 | 0.908 | 48.0% | +32 | -187 | -111 | 40.0% | -0.75 | 4–8 (33%) | 10–8 (56%) | 99.0 | -0.48 |
| 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 | 1696 | 132.6 | -1.79 | -2.59 | 0.866 | 46.9% | +37 | -276 | -80 | 45.0% | -0.34 | 6–6 (50%) | 5–6 (45%) | 97.7 | -0.34 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 28 | 2026 | 1730 | 135.9 | -1.28 | +0.24 | 0.957 | 49.1% | +30 | -307 | -77 | 46.9% | -0.28 | 9–9 (50%) | 5–8 (38%) | 98.1 | -0.41 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | — | 1842 | 129.1 | -1.20 | -0.45 | 0.931 | 48.5% | +30 | -224 | -78 | 45.2% | -0.37 | 21–18 (54%) | 14–21 (40%) | 98.1 | +0.99 | — | 1792 | 136.7 | +1.04 | -3.17 | 0.943 | 48.7% | +33 | -187 | -111 | 46.9% | -0.32 | 7–9 (44%) | 14–9 (61%) | 103.1 | +1.32 |
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.
Janice Tjen
all rivalries →| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Liudmila Samsonova | 0 | 3 | 3 | Aug 3, 2026 | H2H |
| Leylah Fernandez | 3 | 0 | 3 | Jun 29, 2026 | H2H |
| Mirra Andreeva | 0 | 2 | 2 | Sep 1, 2026 | H2H |
| Dayana Yastremska | 2 | 0 | 2 | Aug 24, 2026 | H2H |
| Camila Osorio | 0 | 2 | 2 | May 20, 2026 | H2H |