H2H data updated: 2026-09-13 00:00 UTC

Dayana Yastremska vs Lois Boisson H2H: 0-1

Lois Boisson holds a 1–0 lead over Dayana Yastremska in their WTA head-to-head. Across 1 main-draw meeting, Lois Boisson leads 1–0 on clay. Most recently, Lois Boisson won the 2025 Hamburg Open semifinal 6-1 7-6(5).

Ukraine Age 26 Right-Handed 175 cm / 5'9"
H2H
0 1
1 main-draw meetings
France Age 23 Right-Handed 175 cm / 5'9"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Lois Boisson #63 6-1 7-6(5) Dayana Yastremska #39 Match data Jul 19, 2025 SF Hamburg Open WTA 250 Clay

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
Dayana Yastremska #113 #21 2,070 1,884 135 150 47.4% 0 0 0 0 3 3
Lois Boisson #237 #34 1,354 1,768 17 15 53.1% 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 Dayana Yastremska Lois Boisson
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
16 2016 0–2 0.0% #338 1,463 0 0
17 2017 2–2 50.0% #184 1,461 0 0
18 2018 9–7 56.2% #58 1,730 0 1
19 2019 31–21 59.6% #22 1,822 0 3
20 2020 14–12 53.8% #29 1,792 0 3
21 2021 7–12 36.8% #99 1,692 0 3
22 2022 12–17 41.4% #101 1,614 0 3 2025 14–6 70.0% #36 1,756 0 1
23 2023 5–16 23.8% #102 1,669 0 3 2026 3–9 25.0% #237 1,690 0 1
24 2024 16–20 44.4% #33 1,648 0 3
25 2025 28–21 57.1% #27 1,816 0 3
26 2026 11–20 35.5% #113 1,705 0 3

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 Dayana Yastremska Lois Boisson
Yr HardClayGrass Yr HardClayGrass
W L M Win % W L M Win % W L M Win % W L M Win % W L M Win % W L M Win %
16 2016 0 1 1 0.0% 0 1 1 0.0%
17 2017 2 1 3 66.7% 0 1 1 0.0%
18 2018 9 6 15 60.0% 0 1 1 0.0%
19 2019 23 14 37 62.2% 5 4 9 55.6% 3 3 6 50.0%
20 2020 10 9 19 52.6% 4 3 7 57.1%
21 2021 5 11 16 31.3% 2 1 3 66.7%
22 2022 7 10 17 41.2% 3 3 6 50.0% 2 4 6 33.3% 2025 3 4 7 42.9% 11 2 13 84.6%
23 2023 4 10 14 28.6% 1 6 7 14.3% 2026 2 3 5 40.0% 1 4 5 20.0% 0 2 2 0.0%
24 2024 8 13 21 38.1% 5 5 10 50.0% 3 2 5 60.0%
25 2025 12 13 25 48.0% 10 6 16 62.5% 6 2 8 75.0%
26 2026 6 12 18 33.3% 2 5 7 28.6% 3 3 6 50.0%
Career 84 99 183 45.9% 34 36 70 48.6% 17 15 32 53.1% 5 7 12 41.7% 12 6 18 66.7% 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 265/286 of Dayana Yastremska's and 25/33 of Lois Boisson'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 Dayana Yastremska Lois Boisson
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%
16 2016 2/2 2.5 6.0 56.2% 65.3% 38.9% 52.3% 24.3% 53.0% 40.3% —/—
17 2017 4/4 1.5 3.5 66.0% 50.4% 54.9% 55.8% 51.8% 52.1% 49.7% —/—
18 2018 16/16 4.1 5.7 60.7% 65.8% 49.1% 41.8% 42.8% 59.2% 46.9% —/—
19 2019 51/52 3.8 5.1 60.2% 65.2% 48.7% 60.0% 48.4% 58.4% 44.8% —/—
20 2020 26/26 4.5 5.7 58.9% 67.5% 46.3% 45.5% 47.4% 58.7% 42.0% —/—
21 2021 18/19 4.1 5.6 57.9% 66.1% 45.9% 51.1% 42.2% 57.7% 43.3% —/—
22 2022 29/29 3.4 5.2 57.8% 63.8% 44.4% 54.0% 49.6% 55.7% 38.7% 2025 13/20 3.4 3.3 66.2% 66.7% 48.1% 46.7% 37.3% 60.1% 42.4%
23 2023 21/21 2.5 5.2 57.8% 59.4% 42.8% 40.6% 53.6% 52.2% 41.9% 2026 12/13 4.8 4.2 60.8% 68.6% 42.6% 54.5% 34.8% 58.5% 38.1%
24 2024 34/36 2.9 4.3 57.8% 60.9% 47.1% 51.9% 44.5% 55.0% 42.0% —/—
25 2025 34/50 3.4 5.5 56.3% 63.0% 49.7% 54.0% 51.1% 57.1% 41.8% —/—
26 2026 30/31 2.2 5.1 61.3% 59.5% 46.4% 48.9% 46.5% 54.2% 41.4% —/—
Career 265/286 3.4 5.2 58.9% 63.2% 47.0% 51.5% 47.6% 56.4% 42.6% 25/33 4.0 3.7 63.6% 67.6% 45.5% 50.4% 36.1% 59.4% 40.3%

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 Dayana Yastremska Lois Boisson
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 2016 1464 101.4 -1.01 -2.08 0.858 46.1% 20.0% -1.40 0–1 +0.03
17 2017 1462 104.9 -0.92 +0.23 1.038 50.9% +57 50.0% +0.50 1–1 0–1 +0.10
18 2018 1731 136.1 +1.60 +2.48 1.148 52.9% +20 60.5% +1.03 1–5 (17%) 2–4 (33%) 94.2 -0.03 2021 1484 99.8
19 2019 1822 150.9 +1.72 +2.31 1.077 51.7% +13 -207 -152 60.2% +0.63 5–9 (36%) 6–5 (55%) 95.7 -1.96 2022 1472 95.6
20 2020 1792 146.0 +1.19 -0.19 1.016 50.4% +18 -118 52.5% +0.16 5–4 (56%) 5–5 (50%) 100.7 -1.02 2023 1481
21 2021 1693 125.3 +1.13 -0.92 1.021 50.3% -17 -2 47.7% 0.00 1–7 (13%) 4–4 (50%) 91.7 -0.11 2024 1596
22 2022 1614 122.9 -0.45 -2.85 0.874 47.6% +13 +47 +10 43.1% -0.63 5–6 (45%) 7–4 (64%) 100.8 -0.44 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
23 2023 1669 127.5 -3.00 -0.65 0.875 47.1% +26 -37 31.3% -1.19 1–5 (17%) 2–4 (33%) 92.8 +0.36 2026 1690 121.0 +0.39 -1.74 0.918 48.3% -114 +39 35.7% -0.90 0–5 (0%) 2–1 (67%) 95.0 -1.20
24 2024 1649 136.0 -0.99 -0.74 0.933 48.8% 0 +39 0 45.1% -0.28 9–5 (64%) 7–5 (58%) 105.5 +1.15
25 2025 1816 146.4 +0.46 -0.46 0.975 49.9% -83 -9 -41 56.5% +0.37 8–9 (47%) 11–3 (79%) 106.2 -1.02
26 2026 1706 127.7 -2.64 -1.62 0.905 48.1% -45 +111 +58 41.3% -0.73 4–9 (31%) 7–4 (64%) 97.2 +0.46
Career 1884 142.7 -0.05 -0.20 0.977 49.7% -8 -22 -27 49.8% -0.02 40–61 (40%) 51–39 (57%) 97.0 -0.87 1769 129.1 +1.19 -1.04 0.993 49.8% -165 +79 54.5% +0.33 5–9 (36%) 5–4 (56%) 99.1 -4.13

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.