Lois Boisson
all rivalries →| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Emma Navarro | 0 | 2 | 2 | Aug 30, 2026 | H2H |
| Diane Parry | 0 | 1 | 1 | Aug 17, 2026 | H2H |
| Belinda Bencic | 1 | 0 | 1 | Aug 16, 2026 | H2H |
| Ashlyn Krueger | 1 | 0 | 1 | Aug 13, 2026 | H2H |
| Antonia Ruzic | 0 | 1 | 1 | Aug 2, 2026 | H2H |
H2H data updated: 2026-09-13 00:00 UTC
Lois Boisson vs Yeonwoo Ku H2H: 1-0
Lois Boisson holds a 1–0 lead over Yeonwoo Ku in their WTA head-to-head. Across 1 main-draw meeting, Lois Boisson leads 1–0 on hard courts. Most recently, Lois Boisson won the 2025 Korea Open first round 6-2 6-1.
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 |
|---|---|---|---|---|---|---|---|---|
| Lois Boisson | 6-2 6-1 | Yeonwoo Ku | Match data | Sep 15, 2025 | R32 | Korea Open | WTA 500 | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Lois Boisson | #237 | #34 | 1,354 | 1,768 | 17 | 15 | 53.1% | 0 | 0 | 0 | 0 | 1 | 1 |
| Yeonwoo Ku | #179 | #171 | 452 | 1,529 | 0 | 2 | 0.0% | 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 | Lois Boisson | Yeonwoo Ku | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 20 | — | — | — | — | — | — | — | 2023 | 0–1 | 0.0% | — | 1,516 | 0 | 0 |
| 22 | 2025 | 14–6 | 70.0% | #36 | 1,756 | 0 | 1 | 2025 | 0–1 | 0.0% | #192 | 1,487 | 0 | 0 |
| 23 | 2026 | 3–9 | 25.0% | #237 | 1,690 | 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 | Lois Boisson | Yeonwoo Ku | ||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 % | |||
| 20 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2023 | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — |
| 22 | 2025 | 3 | 4 | 7 | 42.9% | 11 | 2 | 13 | 84.6% | — | — | — | — | 2025 | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — |
| 23 | 2026 | 2 | 3 | 5 | 40.0% | 1 | 4 | 5 | 20.0% | 0 | 2 | 2 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | — | 5 | 7 | 12 | 41.7% | 12 | 6 | 18 | 66.7% | 0 | 2 | 2 | 0.0% | — | 0 | 2 | 2 | 0.0% | — | — | — | — | — | — | — | — |
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 25/33 of Lois Boisson's and 2/2 of Yeonwoo Ku'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 | Lois Boisson | Yeonwoo Ku | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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% | |
| 20 | — | —/— | — | — | — | — | — | — | — | — | — | 2023 | 1/1 | 0.0 | 5.0 | 68.4% | 59.0% | 55.6% | 66.7% | — | 57.9% | 30.2% |
| 22 | 2025 | 13/20 | 3.4 | 3.3 | 66.2% | 66.7% | 48.1% | 46.7% | 37.3% | 60.1% | 42.4% | 2025 | 1/1 | 0.0 | 4.0 | 66.7% | 43.2% | 36.4% | 53.9% | 66.7% | 40.9% | 33.3% |
| 23 | 2026 | 12/13 | 4.8 | 4.2 | 60.8% | 68.6% | 42.6% | 54.5% | 34.8% | 58.5% | 38.1% | — | —/— | — | — | — | — | — | — | — | — | — |
| Career | — | 25/33 | 4.0 | 3.7 | 63.6% | 67.6% | 45.5% | 50.4% | 36.1% | 59.4% | 40.3% | — | 2/2 | 0.0 | 4.5 | 67.5% | 51.1% | 46.0% | 60.3% | 33.3% | 49.4% | 31.8% |
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 | Lois Boisson | Yeonwoo Ku | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 2021 | 1484 | 99.8 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 19 | 2022 | 1472 | 95.6 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2022 | 1496 | 99.4 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 20 | 2023 | 1481 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2023 | 1516 | 101.8 | -1.57 | -2.27 | 0.717 | 44.5% | — | — | — | 0.0% | -3.00 | — | — | — | +0.01 |
| 21 | 2024 | 1596 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2024 | 1514 | 98.1 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 22 | 2025 | 1756 | 138.1 | +1.92 | -0.40 | 1.064 | 51.2% | -202 | +94 | — | 65.3% | +1.04 | 5–4 (56%) | 3–3 (50%) | 103.3 | -0.12 | 2025 | 1488 | 94.0 | -1.85 | +0.96 | 0.564 | 38.1% | — | — | — | 0.0% | -4.50 | — | — | — | +0.03 |
| 23 | 2026 | 1690 | 121.0 | +0.37 | -1.75 | 0.918 | 48.3% | -114 | +39 | — | 35.7% | -0.90 | 0–5 (0%) | 2–1 (67%) | 95.0 | -1.20 | 2026 | 1511 | 103.8 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | — | 1769 | 129.1 | +1.18 | -1.05 | 0.993 | 49.8% | -165 | +79 | — | 54.5% | +0.33 | 5–9 (36%) | 5–4 (56%) | 99.1 | -4.13 | — | 1529 | 99.8 | -1.71 | -0.66 | 0.628 | 41.3% | — | — | — | 0.0% | -3.75 | — | — | — | +2.00 |
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.
Yeonwoo Ku
all rivalries →| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Lois Boisson | 0 | 1 | 1 | Sep 15, 2025 | H2H |
| Claire Liu | 0 | 1 | 1 | Oct 12, 2023 | H2H |