H2H data updated: 2026-09-14 00:00 UTC

Saisai Zheng vs Ayumi Morita H2H: 1-0

Saisai Zheng holds a 1–0 lead over Ayumi Morita in their WTA head-to-head. Across 1 main-draw meeting, Saisai Zheng leads 1–0 on hard courts. Most recently, Saisai Zheng won the 2012 Stanford round of 32 4-2 RET.

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

Saisai Zheng
China Age 32 Right-Handed 170 cm / 5'7"
H2H
1 – 0
1 main-draw meetings
Ayumi Morita
Japan Age 36 Right-Handed 164 cm / 5'5"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Saisai Zheng #188 4-2 (ret.) Ayumi Morita #70 Match data Jul 12, 2012* 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
Saisai Zheng #692 #34 1,585 1,776 87 133 39.5% 0 0 0 1 0 1
Ayumi Morita #1,117 #40 1,345 1,700 83 127 39.5% 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 Saisai Zheng Ayumi Morita
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
15 — — — — — — — 2005 0–1 0.0% #318 1,493 0 0
16 — — — — — — — 2006 2–1 66.7% #180 1,519 0 0
17 2011 0–2 0.0% #276 1,473 0 0 2007 6–6 50.0% #138 1,580 0 0
18 2012 2–3 40.0% #138 1,483 0 0 2008 6–11 35.3% #86 1,593 0 0
19 2013 1–3 25.0% #145 1,467 0 0 2009 10–21 32.3% #83 1,509 0 0
20 2014 6–6 50.0% #100 1,552 0 0 2010 9–17 34.6% #73 1,491 0 0
21 2015 9–22 29.0% #72 1,495 0 0 2011 20–25 44.4% #49 1,581 0 0
22 2016 13–24 35.1% #85 1,542 0 0 2012 9–20 31.0% #85 1,539 0 0
23 2017 5–10 33.3% #93 1,618 0 0 2013 18–21 46.2% #60 1,572 0 0
24 2018 13–12 52.0% #38 1,678 0 0 2014 3–4 42.9% #248 1,573 0 0
25 2019 21–23 47.7% #42 1,750 0 1 — — — — — — —
26 2020 6–4 60.0% #41 1,768 0 1 — — — — — — —
27 2021 10–17 37.0% #79 1,686 0 1 — — — — — — —
30 2024 1–5 16.7% #692 1,548 0 1 — — — — — — —
31 2025 0–2 0.0% — 1,491 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 Saisai Zheng Ayumi Morita
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 %
15 — — — — — — — — — — — — — 2005 0 1 1 0.0% — — — — — — — —
16 — — — — — — — — — — — — — 2006 — — — — — — — — 2 1 3 66.7%
17 2011 0 2 2 0.0% — — — — — — — — 2007 4 4 8 50.0% — — — — 2 2 4 50.0%
18 2012 2 3 5 40.0% — — — — — — — — 2008 5 7 12 41.7% 1 3 4 25.0% 0 1 1 0.0%
19 2013 1 3 4 25.0% — — — — — — — — 2009 6 13 19 31.6% 4 6 10 40.0% 0 2 2 0.0%
20 2014 6 5 11 54.5% 0 1 1 0.0% — — — — 2010 5 10 15 33.3% 2 5 7 28.6% 2 2 4 50.0%
21 2015 8 17 25 32.0% 1 2 3 33.3% 0 3 3 0.0% 2011 15 18 33 45.5% 4 5 9 44.4% 1 2 3 33.3%
22 2016 10 17 27 37.0% 0 3 3 0.0% 3 4 7 42.9% 2012 5 15 20 25.0% 3 3 6 50.0% 1 2 3 33.3%
23 2017 4 7 11 36.4% 1 2 3 33.3% 0 1 1 0.0% 2013 14 14 28 50.0% 4 4 8 50.0% 0 3 3 0.0%
24 2018 12 7 19 63.2% 0 3 3 0.0% 1 2 3 33.3% 2014 3 4 7 42.9% — — — — — — — —
25 2019 18 16 34 52.9% 3 4 7 42.9% 0 3 3 0.0% — — — — — — — — — — — — —
26 2020 6 4 10 60.0% — — — — — — — — — — — — — — — — — — — — —
27 2021 7 13 20 35.0% 3 4 7 42.9% — — — — — — — — — — — — — — — — —
30 2024 1 4 5 20.0% 0 1 1 0.0% — — — — — — — — — — — — — — — — —
31 2025 0 2 2 0.0% — — — — — — — — — — — — — — — — — — — — —
Career — 75 100 175 42.9% 8 20 28 28.6% 4 13 17 23.5% — 57 86 143 39.9% 18 26 44 40.9% 8 15 23 34.8%

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 195/218 of Saisai Zheng's and 194/209 of Ayumi Morita'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 Saisai Zheng Ayumi Morita
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 — —/— — — — — — — — — — 2006 3/3 1.7 3.7 67.9% 62.8% 50.9% 47.3% 65.1% 58.9% 45.0%
17 2011 2/2 0.0 0.5 57.0% 46.2% 38.1% 48.6% 17.7% 43.0% 38.5% 2007 11/12 0.5 3.4 59.4% 56.3% 47.5% 39.8% 47.6% 52.8% 40.3%
18 2012 5/5 0.8 1.2 59.6% 59.8% 41.1% 51.6% 46.4% 52.1% 43.1% 2008 14/17 0.4 2.3 61.8% 54.5% 44.0% 46.0% 45.0% 50.0% 43.4%
19 2013 4/4 1.8 3.8 63.2% 56.7% 39.1% 50.4% 42.0% 50.4% 45.6% 2009 28/31 0.9 2.4 63.9% 56.7% 43.1% 46.5% 49.0% 51.7% 41.1%
20 2014 8/12 1.6 1.4 66.9% 56.0% 51.5% 45.6% 52.8% 54.4% 45.8% 2010 25/26 1.3 1.7 68.1% 58.6% 46.8% 47.8% 47.3% 54.6% 41.4%
21 2015 20/31 0.9 2.2 66.6% 52.7% 45.0% 41.5% 52.4% 50.4% 40.2% 2011 41/45 0.7 1.9 67.7% 57.3% 46.1% 50.7% 50.8% 54.0% 43.4%
22 2016 34/37 0.9 2.1 63.7% 56.5% 46.6% 51.9% 45.9% 52.5% 44.2% 2012 26/29 0.5 1.5 61.4% 57.6% 46.3% 48.3% 47.0% 52.8% 41.2%
23 2017 15/15 1.2 2.2 65.3% 54.2% 43.1% 51.6% 58.7% 49.8% 38.9% 2013 39/39 1.1 1.7 63.4% 59.4% 43.3% 47.2% 47.5% 53.3% 40.1%
24 2018 21/25 0.9 2.0 66.8% 58.5% 45.1% 54.0% 49.2% 54.0% 45.2% 2014 7/7 1.7 2.1 63.3% 50.7% 47.6% 43.2% 56.7% 49.7% 38.0%
25 2019 44/44 1.4 2.7 64.7% 59.2% 44.3% 49.7% 45.7% 53.7% 43.6% — —/— — — — — — — — — —
26 2020 10/10 1.3 2.0 70.3% 62.9% 43.1% 43.5% 45.9% 57.5% 46.4% — —/— — — — — — — — — —
27 2021 26/27 0.9 1.8 67.3% 58.4% 47.9% 53.1% 43.0% 54.9% 42.5% — —/— — — — — — — — — —
30 2024 6/6 1.0 3.3 62.2% 51.9% 44.6% 40.1% 45.4% 49.1% 39.6% — —/— — — — — — — — — —
Career — 195/220 1.1 2.2 65.4% 57.2% 45.2% 49.6% 47.4% 52.9% 43.1% — 194/210 0.9 2.0 64.4% 57.4% 45.3% 47.4% 48.7% 53.0% 41.5%

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 Saisai Zheng Ayumi Morita
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
15 — — — — — — — — — — — — — — — — 2005 1494 104.4 — — — — — — — 0.0% -2.00 — — — -0.21
16 — — — — — — — — — — — — — — — — 2006 1519 102.2 +1.30 +0.12 1.096 52.3% — — +115 62.5% +0.50 1–1 — — +0.20
17 2011 1474 95.9 -1.89 -2.23 0.676 41.1% — — — 0.0% -4.25 — — — +0.25 2007 1581 112.6 -1.21 -2.90 0.853 46.9% -27 — +79 48.1% -0.67 2–1 (67%) 0–1 — -0.87
18 2012 1483 99.4 -0.72 -1.45 0.900 48.2% +11 — — 33.3% -1.55 0–1 1–0 — +0.37 2008 1594 118.1 -3.04 +0.17 0.867 47.0% -4 -65 — 38.5% -1.36 2–3 (40%) 2–1 (67%) 101.2 -0.99
19 2013 1468 100.9 -1.08 +0.55 0.920 48.0% +5 — — 30.0% -1.00 1–1 1–2 (33%) — +0.17 2009 1509 112.7 -2.81 -2.13 0.851 46.5% +27 +15 — 40.3% -0.48 3–5 (38%) 0–4 (0%) 95.2 +1.33
20 2014 1553 119.6 -1.26 +0.86 1.006 49.7% +9 — — 53.3% -0.23 2–4 (33%) 1–1 — -0.37 2010 1491 104.6 -1.00 -2.22 0.913 47.8% +2 -13 +95 40.4% -0.56 2–5 (29%) 2–3 (40%) 95.1 +1.31
21 2015 1496 110.7 -5.38 -1.24 0.811 45.6% +9 +30 +74 30.9% -1.50 5–3 (63%) 2–1 (67%) 105.2 -0.08 2011 1581 128.3 -1.15 -0.28 0.944 48.8% +6 -49 -35 48.5% -0.26 7–10 (41%) 5–4 (56%) 100.3 +1.00
22 2016 1542 123.0 -2.10 +1.09 0.930 48.2% +24 -74 +9 40.0% -0.83 0–8 (0%) 2–2 (50%) 91.8 +0.81 2012 1539 121.0 -2.33 -2.09 0.874 47.0% -19 +36 +28 40.4% -0.65 2–5 (29%) 1–2 (33%) 97.2 +0.05
23 2017 1619 110.1 -3.22 -1.56 0.775 44.5% -8 -100 — 34.2% -1.42 5–3 (63%) 3–1 (75%) 104.9 -0.08 2013 1572 122.1 -1.70 -2.81 0.859 46.8% +14 +20 -125 48.8% -0.43 6–4 (60%) 3–1 (75%) 105.0 -0.02
24 2018 1679 118.9 -1.21 +1.53 0.983 49.6% +22 -169 -79 54.5% +0.13 3–4 (43%) 0–1 — +1.42 2014 1573 103.7 -2.70 -1.82 0.755 44.4% +11 — — 46.2% -1.38 1–0 3–0 (100%) — -0.21
25 2019 1750 134.4 -2.18 +0.80 0.942 48.7% -10 -123 -200 48.0% -0.28 8–6 (57%) 11–3 (79%) 107.3 +0.31 — — — — — — — — — — — — — — — —
26 2020 1768 132.2 +0.85 +2.96 1.090 51.7% -8 — — 58.3% +0.58 2–2 (50%) 1–1 — +0.03 — — — — — — — — — — — — — — — —
27 2021 1686 121.1 -1.18 -0.16 0.941 48.6% -18 -68 — 38.7% -0.89 4–4 (50%) 1–1 — -0.36 2017 1558 99.8 — — — — — — — — — — — — —
30 2024 1548 93.3 -2.71 -2.47 0.779 44.6% -4 — — 26.7% -1.73 1–2 (33%) 0–1 — +0.51 — — — — — — — — — — — — — — — —
31 2025 1492 101.5 — — — — — — — 0.0% -2.25 — 0–2 — -0.05 — — — — — — — — — — — — — — — —
Career — 1777 123.8 -2.10 +0.33 0.915 48.0% +3 -88 -35 41.7% -0.74 31–38 (45%) 23–16 (59%) 104.4 +1.33 — 1701 122.1 -1.80 -1.71 0.884 47.4% +4 -6 +32 44.4% -0.56 26–34 (43%) 16–16 (50%) 99.6 +0.76

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.