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

Misaki Doi vs Kayla Day H2H: 0-1

Kayla Day holds a 1–0 lead over Misaki Doi in their WTA head-to-head. Across 1 main-draw meeting, Kayla Day leads 1–0 on hard courts. Most recently, Kayla Day won the 2017 Stanford first round 6-4 6-2.

Want to explore more matchups? Advanced rivalry search lets you browse current and historical rivalries, unbeaten records, or every matchup for a player.

Misaki Doi
Japan Age 35 Left-Handed 159 cm / 5'3"
H2H
0 – 1
1 main-draw meetings
Kayla Day
United States Age 26 Left-Handed 173 cm / 5'8"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Kayla Day #129 6-4 6-2 Misaki Doi #81 Match data Aug 3, 2017* R32 Stanford Premier → modern equivalent WTA 500 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
Misaki Doi #258 #30 1,555 1,734 99 167 37.2% 0 0 0 0 1 1
Kayla Day #117 #84 847 1,637 9 29 23.7% 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 Misaki Doi Kayla Day
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
16 — — — — — — — 2016 1–2 33.3% #198 1,540 0 0
17 — — — — — — — 2017 3–5 37.5% #150 1,524 0 0
18 — — — — — — — 2018 0–2 0.0% #313 1,487 0 0
19 2010 0–3 0.0% #132 1,475 0 0 — — — — — — —
20 2011 6–11 35.3% #120 1,492 0 0 — — — — — — —
21 2012 10–9 52.6% #93 1,552 0 0 — — — — — — —
22 2013 9–15 37.5% #90 1,569 0 0 2022 0–2 0.0% #197 1,534 0 0
23 2014 5–10 33.3% #124 1,553 0 0 2023 3–6 33.3% #87 1,564 0 0
24 2015 13–14 48.1% #54 1,657 0 1 2024 0–7 0.0% #241 1,435 0 0
25 2016 20–27 42.6% #40 1,668 0 1 — — — — — — —
26 2017 9–17 34.6% #122 1,530 0 1 2026 2–5 28.6% #117 1,604 0 0
27 2018 1–3 25.0% #128 1,571 0 1 — — — — — — —
28 2019 8–14 36.4% #82 1,644 0 1 — — — — — — —
29 2020 1–8 11.1% #83 1,572 0 1 — — — — — — —
30 2021 11–21 34.4% #105 1,588 0 1 — — — — — — —
31 2022 5–13 27.8% #173 1,457 0 1 — — — — — — —
32 2023 1–2 33.3% #258 1,488 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 Misaki Doi Kayla Day
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 1 2 3 33.3% — — — — — — — —
17 — — — — — — — — — — — — — 2017 3 4 7 42.9% 0 1 1 0.0% — — — —
18 — — — — — — — — — — — — — 2018 0 2 2 0.0% — — — — — — — —
19 2010 0 1 1 0.0% 0 1 1 0.0% 0 1 1 0.0% — — — — — — — — — — — — —
20 2011 3 8 11 27.3% 0 1 1 0.0% 3 2 5 60.0% — — — — — — — — — — — — —
21 2012 7 7 14 50.0% — — — — 3 2 5 60.0% — — — — — — — — — — — — —
22 2013 7 10 17 41.2% 2 4 6 33.3% 0 1 1 0.0% 2022 0 2 2 0.0% — — — — — — — —
23 2014 4 8 12 33.3% 0 1 1 0.0% 1 1 2 50.0% 2023 1 4 5 20.0% 2 2 4 50.0% — — — —
24 2015 9 9 18 50.0% 3 3 6 50.0% 1 2 3 33.3% 2024 0 3 3 0.0% 0 3 3 0.0% 0 1 1 0.0%
25 2016 11 19 30 36.7% 4 5 9 44.4% 5 3 8 62.5% — — — — — — — — — — — — —
26 2017 4 10 14 28.6% 5 6 11 45.5% 0 1 1 0.0% 2026 2 3 5 40.0% 0 1 1 0.0% 0 1 1 0.0%
27 2018 1 3 4 25.0% — — — — — — — — — — — — — — — — — — — — —
28 2019 8 12 20 40.0% 0 2 2 0.0% — — — — — — — — — — — — — — — — —
29 2020 0 5 5 0.0% 1 3 4 25.0% — — — — — — — — — — — — — — — — —
30 2021 9 12 21 42.9% 1 6 7 14.3% 1 3 4 25.0% — — — — — — — — — — — — —
31 2022 4 7 11 36.4% 1 4 5 20.0% 0 2 2 0.0% — — — — — — — — — — — — —
32 2023 1 2 3 33.3% — — — — — — — — — — — — — — — — — — — — —
Career — 68 113 181 37.6% 17 36 53 32.1% 14 18 32 43.8% — 7 20 27 25.9% 2 7 9 22.2% 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 241/267 of Misaki Doi's and 38/38 of Kayla Day'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 Misaki Doi Kayla Day
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 3/3 1.0 3.7 59.0% 55.2% 30.3% 50.6% 66.7% 44.4% 38.1%
17 — —/— — — — — — — — — — 2017 8/8 3.4 5.5 48.8% 66.2% 45.1% 51.9% 31.0% 55.7% 38.9%
18 — —/— — — — — — — — — — 2018 2/2 5.0 6.0 48.1% 68.0% 33.7% 50.0% 35.0% 49.8% 33.8%
19 2010 3/3 0.0 2.0 68.2% 56.7% 42.6% 55.7% 13.9% 52.3% 34.8% — —/— — — — — — — — — —
20 2011 15/17 1.1 3.4 62.4% 60.0% 40.7% 49.6% 40.7% 52.3% 41.7% — —/— — — — — — — — — —
21 2012 19/19 1.7 3.0 62.4% 62.6% 48.8% 48.0% 42.8% 57.5% 45.5% — —/— — — — — — — — — —
22 2013 20/24 1.3 3.2 59.3% 61.4% 48.6% 41.7% 39.2% 56.2% 42.1% 2022 2/2 4.0 2.5 66.5% 68.4% 39.1% 56.4% 50.0% 58.6% 36.6%
23 2014 15/15 1.7 2.7 60.4% 62.4% 40.8% 53.7% 46.0% 53.5% 41.4% 2023 9/9 2.2 3.0 58.1% 62.9% 43.8% 57.4% 39.7% 55.0% 39.3%
24 2015 18/27 2.4 2.5 62.7% 61.7% 46.2% 51.4% 59.2% 56.2% 42.3% 2024 7/7 3.7 3.3 66.8% 58.5% 42.2% 52.8% 37.1% 55.1% 36.5%
25 2016 42/47 1.9 2.2 59.9% 61.9% 47.1% 57.8% 41.6% 56.1% 39.3% — —/— — — — — — — — — —
26 2017 24/26 1.1 1.9 62.7% 59.0% 46.8% 46.7% 40.3% 54.1% 40.0% 2026 7/7 4.0 3.4 65.3% 59.9% 47.4% 52.6% 46.8% 55.8% 40.7%
27 2018 4/4 0.8 2.3 63.7% 59.6% 42.9% 57.1% 52.2% 53.6% 42.4% — —/— — — — — — — — — —
28 2019 22/22 0.9 3.1 59.9% 60.8% 46.1% 50.0% 54.7% 54.8% 40.3% — —/— — — — — — — — — —
29 2020 9/9 0.7 4.1 63.4% 58.5% 41.4% 54.0% 41.3% 51.8% 39.5% — —/— — — — — — — — — —
30 2021 29/33 0.9 2.7 61.8% 58.0% 45.0% 44.7% 51.9% 53.2% 39.3% — —/— — — — — — — — — —
31 2022 18/18 1.2 3.6 60.4% 60.0% 39.4% 56.5% 46.6% 52.0% 37.7% — —/— — — — — — — — — —
32 2023 3/3 2.0 1.7 68.4% 64.7% 49.6% 56.6% 34.7% 60.3% 35.7% — —/— — — — — — — — — —
Career — 241/267 1.4 2.8 61.4% 60.6% 45.2% 50.8% 45.4% 54.6% 40.5% — 38/38 3.2 3.8 59.1% 62.2% 42.6% 53.5% 41.1% 54.4% 38.4%

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 Misaki Doi Kayla Day
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 1540 107.8 -2.89 +0.53 0.685 42.0% +14 — — 0.0% -4.75 — — — -0.17
17 — — — — — — — — — — — — — — — — 2017 1524 111.0 0.00 -2.37 0.877 47.2% +13 — — 45.0% -0.85 1–3 (25%) — — -0.14
18 — — — — — — — — — — — — — — — — 2018 1487 91.2 -2.87 -2.16 0.673 41.8% — — — 20.0% -3.20 0–1 — — +0.16
19 2010 1475 100.7 -0.02 -0.90 0.729 43.5% — — — 14.3% -2.71 0–1 — — -0.27 2019 1463 99.5 — — — — — — — — — — — — —
20 2011 1492 110.6 -2.09 -1.38 0.872 46.9% +9 — +124 35.3% -0.85 2–0 0–3 (0%) — +0.29 2020 1450 — — — — — — — — — — — — — —
21 2012 1552 111.2 +0.40 -0.63 1.068 51.3% -14 — +104 48.9% +0.38 5–2 (71%) 0–3 (0%) 102.4 +1.74 — — — — — — — — — — — — — — — —
22 2013 1570 117.8 -0.57 -1.00 0.962 48.8% +1 -75 — 41.8% -0.62 2–5 (29%) 2–2 (50%) 96.5 -0.40 2022 1535 99.5 -0.90 -1.76 0.884 47.0% — — — 0.0% -2.00 — 0–1 — +0.44
23 2014 1553 112.0 -1.33 -1.10 0.890 47.5% -8 — — 35.3% -1.15 2–4 (33%) 2–1 (67%) 99.7 -0.48 2023 1565 118.9 -0.78 -1.35 0.874 47.7% -48 +5 — 31.6% -0.84 1–0 0–1 — +0.61
24 2015 1658 123.9 -1.42 +0.28 0.967 49.9% -22 -122 -54 48.4% -0.26 4–6 (40%) 4–3 (57%) 101.8 -0.92 2024 1436 102.7 -2.31 -3.54 0.812 46.2% -2 +63 — 22.2% -1.61 0–4 (0%) 1–3 (25%) 92.8 +0.78
25 2016 1669 124.6 +0.05 -2.56 0.894 47.9% -39 -94 0 42.7% -0.70 5–8 (38%) 6–3 (67%) 101.2 -0.95 2025 1474 — — — — — — — — — — — — — —
26 2017 1531 112.4 -1.70 -2.51 0.872 47.2% -31 +75 — 32.1% -1.02 4–3 (57%) 1–4 (20%) 99.5 +0.29 2026 1604 129.8 -0.05 +0.23 0.921 48.5% -18 — — 35.3% -0.94 1–2 (33%) 1–1 — -0.59
27 2018 1571 111.0 -0.62 -0.93 0.914 48.6% +3 — — 36.4% -0.27 1–2 (33%) 1–1 — -0.14 — — — — — — — — — — — — — — — —
28 2019 1645 124.7 -1.10 -1.27 0.892 47.9% -30 — — 40.4% -0.65 3–5 (38%) 2–4 (33%) 97.6 +0.04 — — — — — — — — — — — — — — — —
29 2020 1573 110.0 -2.38 -1.23 0.819 45.8% -9 +73 — 29.2% -1.38 1–5 (17%) 0–3 (0%) — +0.58 — — — — — — — — — — — — — — — —
30 2021 1589 123.1 -2.40 -2.77 0.841 46.3% -9 -27 +70 35.3% -1.09 4–4 (50%) 2–1 (67%) 102.6 -0.58 — — — — — — — — — — — — — — — —
31 2022 1458 108.2 -3.32 -3.02 0.784 45.3% +75 -2 — 29.3% -1.46 3–2 (60%) 3–0 (100%) — +1.02 — — — — — — — — — — — — — — — —
32 2023 1489 114.0 -0.38 -0.81 0.899 47.3% +67 — — 42.9% -0.86 0–1 — — +0.08 — — — — — — — — — — — — — — — —
Career — 1734 122.8 -1.24 -1.72 0.894 47.7% -11 -23 +50 38.9% -0.77 36–48 (43%) 23–28 (45%) 98.3 +0.11 — 1637 116.0 -1.05 -1.59 0.842 46.7% -9 +30 — 29.9% -1.39 3–10 (23%) 2–6 (25%) 91.1 +2.87

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.