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

Ayumi Morita vs Casey Dellacqua H2H: 1-0

Ayumi Morita holds a 1–0 lead over Casey Dellacqua in their WTA head-to-head. Across 1 main-draw meeting, Ayumi Morita leads 1–0 on clay. Most recently, Ayumi Morita won the 2011 Brussels round of 16 1-6 6-0 7-5.

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

Ayumi Morita
Japan Age 36 Right-Handed 164 cm / 5'5"
H2H
1 – 0
1 main-draw meetings
Casey Dellacqua
Australia Age 41 Left-Handed 165 cm / 5'5"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Ayumi Morita #57 1-6 6-0 7-5 Casey Dellacqua #429 Match data May 20, 2011* R16 Brussels Premier → modern equivalent WTA 500 Clay

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
Ayumi Morita #1,117 #40 1,345 1,700 83 127 39.5% 0 0 0 0 0 0
Casey Dellacqua #932 #26 1,725 1,757 80 106 43.0% 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 Ayumi Morita Casey Dellacqua
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 2007 6–6 50.0% #138 1,580 0 0 — — — — — — —
18 2008 6–11 35.3% #86 1,593 0 0 2003 0–1 0.0% #287 1,489 0 0
19 2009 10–21 32.3% #83 1,509 0 0 2004 0–2 0.0% #291 1,472 0 0
20 2010 9–17 34.6% #73 1,491 0 0 2005 1–2 33.3% #195 1,474 0 0
21 2011 20–25 44.4% #49 1,581 0 0 2006 3–4 42.9% #157 1,501 0 0
22 2012 9–20 31.0% #85 1,539 0 0 2007 6–12 33.3% #86 1,501 0 0
23 2013 18–21 46.2% #60 1,572 0 0 2008 18–17 51.4% #53 1,629 0 0
24 2014 3–4 42.9% #248 1,573 0 0 2009 0–3 0.0% #1002 1,597 0 0
25 — — — — — — — 2010 2–5 28.6% #227 1,563 0 0
26 — — — — — — — 2011 3–5 37.5% #134 1,541 0 0
27 — — — — — — — 2012 10–14 41.7% #101 1,592 0 0
28 — — — — — — — 2013 1–8 11.1% #142 1,490 0 0
29 — — — — — — — 2014 27–17 61.4% #29 1,741 0 0
30 — — — — — — — 2015 9–16 36.0% #116 1,628 0 0

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 Ayumi Morita Casey Dellacqua
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 2007 4 4 8 50.0% — — — — 2 2 4 50.0% — — — — — — — — — — — — —
18 2008 5 7 12 41.7% 1 3 4 25.0% 0 1 1 0.0% 2003 0 1 1 0.0% — — — — — — — —
19 2009 6 13 19 31.6% 4 6 10 40.0% 0 2 2 0.0% 2004 0 2 2 0.0% — — — — — — — —
20 2010 5 10 15 33.3% 2 5 7 28.6% 2 2 4 50.0% 2005 1 2 3 33.3% — — — — — — — —
21 2011 15 18 33 45.5% 4 5 9 44.4% 1 2 3 33.3% 2006 3 4 7 42.9% — — — — — — — —
22 2012 5 15 20 25.0% 3 3 6 50.0% 1 2 3 33.3% 2007 5 9 14 35.7% 0 1 1 0.0% 1 2 3 33.3%
23 2013 14 14 28 50.0% 4 4 8 50.0% 0 3 3 0.0% 2008 11 9 20 55.0% 4 5 9 44.4% 3 3 6 50.0%
24 2014 3 4 7 42.9% — — — — — — — — 2009 0 3 3 0.0% — — — — — — — —
25 — — — — — — — — — — — — — 2010 2 4 6 33.3% — — — — 0 1 1 0.0%
26 — — — — — — — — — — — — — 2011 0 1 1 0.0% 2 3 5 40.0% 1 1 2 50.0%
27 — — — — — — — — — — — — — 2012 8 11 19 42.1% 0 1 1 0.0% 2 2 4 50.0%
28 — — — — — — — — — — — — — 2013 1 7 8 12.5% — — — — 0 1 1 0.0%
29 — — — — — — — — — — — — — 2014 19 12 31 61.3% 3 3 6 50.0% 5 2 7 71.4%
30 — — — — — — — — — — — — — 2015 3 9 12 25.0% 1 3 4 25.0% 5 4 9 55.6%
Career — 57 86 143 39.9% 18 26 44 40.9% 8 15 23 34.8% — 53 74 127 41.7% 10 16 26 38.5% 17 16 33 51.5%

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 194/209 of Ayumi Morita's and 163/185 of Casey Dellacqua'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 Ayumi Morita Casey Dellacqua
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 2007 11/12 0.5 3.4 59.4% 56.3% 47.5% 39.8% 47.6% 52.8% 40.3% — —/— — — — — — — — — —
18 2008 14/17 0.4 2.3 61.8% 54.5% 44.0% 46.0% 45.0% 50.0% 43.4% — —/— — — — — — — — — —
19 2009 28/31 0.9 2.4 63.9% 56.7% 43.1% 46.5% 49.0% 51.7% 41.1% 2004 1/2 2.0 6.0 53.4% 56.4% 41.2% 66.7% 37.5% 49.3% 43.8%
20 2010 25/26 1.3 1.7 68.1% 58.6% 46.8% 47.8% 47.3% 54.6% 41.4% 2005 1/3 1.0 7.0 54.3% 63.2% 50.0% 33.3% 42.9% 57.1% 36.8%
21 2011 41/45 0.7 1.9 67.7% 57.3% 46.1% 50.7% 50.8% 54.0% 43.4% 2006 1/7 1.0 7.0 47.4% 55.6% 40.0% 60.0% 0.0% 47.4% 26.5%
22 2012 26/29 0.5 1.5 61.4% 57.6% 46.3% 48.3% 47.0% 52.8% 41.2% 2007 17/18 1.8 3.6 60.5% 60.6% 44.5% 42.3% 53.2% 54.1% 44.7%
23 2013 39/39 1.1 1.7 63.4% 59.4% 43.3% 47.2% 47.5% 53.3% 40.1% 2008 31/35 2.9 4.3 58.6% 63.1% 44.2% 54.4% 49.5% 55.4% 45.2%
24 2014 7/7 1.7 2.1 63.3% 50.7% 47.6% 43.2% 56.7% 49.7% 38.0% 2009 3/3 1.0 5.3 52.8% 46.5% 36.2% 28.4% 13.9% 42.2% 38.4%
25 — —/— — — — — — — — — — 2010 7/7 1.0 3.4 53.5% 55.2% 40.5% 37.9% 37.3% 48.1% 42.3%
26 — —/— — — — — — — — — — 2011 6/8 2.0 4.5 64.2% 60.4% 45.9% 63.2% 81.9% 55.0% 44.2%
27 — —/— — — — — — — — — — 2012 22/24 1.0 3.8 62.7% 59.3% 39.5% 49.5% 47.4% 51.8% 43.4%
28 — —/— — — — — — — — — — 2013 9/9 0.9 3.0 61.8% 57.4% 45.2% 49.0% 53.9% 52.6% 33.7%
29 — —/— — — — — — — — — — 2014 41/44 1.7 3.0 59.5% 62.2% 49.4% 54.3% 48.9% 56.9% 43.5%
30 — —/— — — — — — — — — — 2015 24/25 2.0 3.3 62.4% 61.9% 50.1% 52.0% 50.0% 57.4% 39.6%
Career — 194/210 0.9 2.0 64.4% 57.4% 45.3% 47.4% 48.7% 53.0% 41.5% — 163/186 1.8 3.6 60.1% 60.8% 45.6% 50.9% 49.4% 54.6% 42.6%

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 Ayumi Morita Casey Dellacqua
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 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 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 2003 1489 100.3 — — — — — — — 33.3% -2.33 0–1 1–0 — +0.02
19 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 2004 1473 96.4 -3.43 -1.30 0.865 46.6% — — — 0.0% -2.50 — — — -0.14
20 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 2005 1475 101.7 -1.70 -1.14 0.860 46.6% +3 — — 42.9% -1.14 0–1 0–1 — -0.05
21 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 2006 1501 113.4 -0.08 -1.23 0.504 37.7% -2 — — 37.5% -1.00 2–0 1–1 — -0.22
22 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 2007 1502 122.1 -1.56 -0.63 0.973 49.3% +17 — +91 43.2% -0.18 1–7 (13%) — — -0.01
23 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 2008 1630 126.8 -0.29 +1.02 1.014 50.2% +9 -98 -24 47.5% -0.18 8–6 (57%) 2–5 (29%) 103.0 +0.09
24 2014 1573 103.7 -2.70 -1.82 0.755 44.4% +11 — — 46.2% -1.38 1–0 3–0 (100%) — -0.21 2009 1598 101.9 -2.95 -1.13 0.664 40.6% +4 — — 0.0% -3.67 — 0–1 — -0.17
25 — — — — — — — — — — — — — — — — 2010 1563 103.6 -3.53 -0.93 0.814 45.4% +23 — — 31.3% -1.50 1–1 2–2 (50%) — +0.55
26 — — — — — — — — — — — — — — — — 2011 1541 104.0 -1.59 -2.06 0.982 49.7% — -17 — 42.1% -0.26 1–2 (33%) 1–0 — +0.43
27 2017 1558 99.8 — — — — — — — — — — — — — 2012 1593 122.1 -1.70 -0.55 0.901 47.8% -3 — +45 42.3% -0.52 4–2 (67%) 0–2 — -0.51
28 — — — — — — — — — — — — — — — — 2013 1490 95.2 -2.07 -4.32 0.712 44.0% +4 — — 15.8% -2.16 0–1 0–2 — +1.12
29 — — — — — — — — — — — — — — — — 2014 1742 139.6 +0.67 +0.45 1.011 50.3% -28 -176 -39 55.2% +0.23 13–6 (68%) 4–5 (44%) 108.7 +0.21
30 — — — — — — — — — — — — — — — — 2015 1629 117.9 -0.10 -0.71 0.929 48.4% -22 -90 +90 43.1% -0.65 1–7 (13%) 3–3 (50%) 93.4 -0.22
31 — — — — — — — — — — — — — — — — 2016 1613 — — — — — — — — — — — — — —
Career — 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 — 1758 127.4 -0.70 -0.33 0.939 48.7% -5 -99 +29 43.8% -0.46 31–34 (48%) 14–22 (39%) 100.0 +0.60

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.