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

Ai Sugiyama vs Meghann Shaughnessy H2H: 3-1

Ai Sugiyama holds a 3–1 lead over Meghann Shaughnessy in their WTA head-to-head. Across 4 main-draw meetings, Ai Sugiyama leads 2–1 on hard courts and 1–0 on clay. Most recently, Ai Sugiyama won the 2005 San Diego round of 64 3-0 RET.

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Ai Sugiyama
JPN Age 51 Right-Handed 163 cm / 5'4"
H2H
3 – 1
4 main-draw meetings
Meghann Shaughnessy
USA Age 47 Right-Handed 180 cm / 5'11"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Ai Sugiyama #38 3-0 (ret.) Meghann Shaughnessy #57 Match data Aug 3, 2005* R64 San Diego Tier I → modern equivalent WTA 1000 Hard
Meghann Shaughnessy #30 6-3 6-2 Ai Sugiyama #10 Match data Mar 5, 2004* R16 Qatar Open Tier II → modern equivalent WTA 500 Hard
Ai Sugiyama #11 6-2 5-7 6-2 Meghann Shaughnessy #19 Match data Nov 1, 2003* QF Philadelphia Tier II → modern equivalent WTA 500 Hard
Ai Sugiyama #15 6-1 6-4 Meghann Shaughnessy #19 Match data Jun 1, 2003* R32 Roland Garros Grand Slam 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
Ai Sugiyama #97 #8 2,400 1,951 416 366 53.2% 0 0 0 2 4 6
Meghann Shaughnessy #1,104 #11 1,949 1,903 233 233 50.0% 0 0 0 0 6 6

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 Ai Sugiyama Meghann Shaughnessy
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
16 1992 1–4 20.0% #184 1,477 0 0 — — — — — — —
17 1993 3–8 27.3% #145 1,486 0 0 1996 3–4 42.9% #165 1,511 0 0
18 1994 9–11 45.0% #72 1,556 0 0 1997 0–1 0.0% #198 1,499 0 0
19 1995 16–17 48.5% #46 1,665 0 0 1998 8–9 47.1% #69 1,544 0 0
20 1996 24–19 55.8% #28 1,751 0 0 1999 10–22 31.2% #99 1,438 0 0
21 1997 31–25 55.4% #21 1,837 0 1 2000 23–20 53.5% #38 1,651 0 1
22 1998 37–21 63.8% #18 1,862 0 3 2001 45–25 64.3% #12 1,832 0 2
23 1999 27–23 54.0% #24 1,807 0 3 2002 29–27 51.8% #30 1,738 0 2
24 2000 20–25 44.4% #32 1,679 0 3 2003 32–23 58.2% #17 1,729 0 3
25 2001 28–25 52.8% #30 1,718 0 3 2004 20–22 47.6% #40 1,662 0 3
26 2002 35–26 57.4% #24 1,755 0 3 2005 17–25 40.5% #66 1,566 0 3
27 2003 44–25 63.8% #10 1,915 0 5 2006 27–20 57.4% #37 1,709 0 5
28 2004 33–23 58.9% #17 1,808 0 6 2007 18–22 45.0% #52 1,666 0 6
29 2005 28–27 50.9% #29 1,741 0 6 2008 0–5 0.0% #836 1,579 0 6
30 2006 28–25 52.8% #26 1,743 0 6 2009 1–8 11.1% #590 1,533 0 6
31 2007 17–21 44.7% #38 1,633 0 6 — — — — — — —
32 2008 26–22 54.2% #31 1,713 0 6 — — — — — — —
33 2009 9–19 32.1% #97 1,627 0 6 — — — — — — —

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 Ai Sugiyama Meghann Shaughnessy
Yr HardClayGrassCarpet Yr HardClayGrassCarpet
W L M Win % W L M Win % 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 1992 0 3 3 0.0% — — — — — — — — 1 1 2 50.0% — — — — — — — — — — — — — — — — —
17 1993 2 3 5 40.0% — — — — 0 2 2 0.0% 1 3 4 25.0% 1996 0 1 1 0.0% 2 1 3 66.7% — — — — 1 2 3 33.3%
18 1994 6 7 13 46.2% — — — — 0 2 2 0.0% 3 2 5 60.0% 1997 0 1 1 0.0% — — — — — — — — — — — —
19 1995 5 8 13 38.5% 6 4 10 60.0% 0 2 2 0.0% 5 3 8 62.5% 1998 4 5 9 44.4% 4 3 7 57.1% — — — — 0 1 1 0.0%
20 1996 19 11 30 63.3% 0 3 3 0.0% 4 2 6 66.7% 1 3 4 25.0% 1999 2 7 9 22.2% 5 11 16 31.3% 2 3 5 40.0% 1 1 2 50.0%
21 1997 19 13 32 59.4% 3 5 8 37.5% 2 2 4 50.0% 7 5 12 58.3% 2000 15 10 25 60.0% 6 6 12 50.0% 2 3 5 40.0% 0 1 1 0.0%
22 1998 24 9 33 72.7% 6 5 11 54.5% 1 2 3 33.3% 6 5 11 54.5% 2001 18 14 32 56.3% 15 7 22 68.2% 5 2 7 71.4% 7 2 9 77.8%
23 1999 18 11 29 62.1% 3 4 7 42.9% 2 2 4 50.0% 4 6 10 40.0% 2002 16 15 31 51.6% 6 7 13 46.2% 3 2 5 60.0% 4 3 7 57.1%
24 2000 11 13 24 45.8% 6 5 11 54.5% 1 2 3 33.3% 2 5 7 28.6% 2003 26 13 39 66.7% 6 5 11 54.5% 0 2 2 0.0% 0 3 3 0.0%
25 2001 20 14 34 58.8% 4 6 10 40.0% 2 3 5 40.0% 2 2 4 50.0% 2004 14 16 30 46.7% 4 5 9 44.4% 2 1 3 66.7% — — — —
26 2002 26 16 42 61.9% 4 6 10 40.0% 5 3 8 62.5% 0 1 1 0.0% 2005 9 15 24 37.5% 4 7 11 36.4% 4 3 7 57.1% — — — —
27 2003 29 16 45 64.4% 7 4 11 63.6% 4 2 6 66.7% 4 3 7 57.1% 2006 14 13 27 51.9% 12 6 18 66.7% 1 1 2 50.0% — — — —
28 2004 22 14 36 61.1% 5 5 10 50.0% 5 2 7 71.4% 1 2 3 33.3% 2007 7 13 20 35.0% 10 6 16 62.5% 1 2 3 33.3% 0 1 1 0.0%
29 2005 20 17 37 54.1% 7 6 13 53.8% 1 3 4 25.0% 0 1 1 0.0% 2008 0 2 2 0.0% 0 3 3 0.0% — — — — — — — —
30 2006 22 18 40 55.0% 1 3 4 25.0% 5 3 8 62.5% 0 1 1 0.0% 2009 1 8 9 11.1% — — — — — — — — — — — —
31 2007 10 15 25 40.0% 3 2 5 60.0% 2 3 5 40.0% 2 1 3 66.7% — — — — — — — — — — — — — — — — —
32 2008 20 15 35 57.1% 4 5 9 44.4% 2 2 4 50.0% — — — — — — — — — — — — — — — — — — — — —
33 2009 7 13 20 35.0% 0 4 4 0.0% 2 2 4 50.0% — — — — — — — — — — — — — — — — — — — — —
Career — 280 216 496 56.5% 59 67 126 46.8% 38 39 77 49.4% 39 44 83 47.0% — 126 133 259 48.6% 74 67 141 52.5% 20 19 39 51.3% 13 14 27 48.1%

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 170/347 of Ai Sugiyama's and 94/240 of Meghann Shaughnessy'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 Ai Sugiyama Meghann Shaughnessy
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%
24 — —/— — — — — — — — — — 2003 8/55 5.0 4.4 51.4% 71.2% 47.2% 53.9% 49.8% 59.4% 40.4%
25 — —/— — — — — — — — — — 2004 6/42 6.5 6.7 50.5% 72.4% 42.1% 59.3% 38.6% 57.5% 39.3%
26 — —/— — — — — — — — — — 2005 11/42 9.1 4.0 54.9% 77.0% 49.1% 57.4% 45.9% 64.4% 39.2%
27 2003 12/69 0.8 5.8 60.8% 64.3% 45.1% 53.4% 43.3% 56.6% 48.3% 2006 21/47 4.4 5.3 55.4% 68.5% 45.4% 54.3% 38.1% 57.9% 39.9%
28 2004 11/56 1.2 4.5 60.8% 64.1% 45.3% 64.6% 47.8% 56.5% 48.7% 2007 34/40 4.5 3.9 54.5% 70.0% 45.4% 56.8% 37.8% 58.6% 39.4%
29 2005 7/55 1.4 5.0 65.8% 58.7% 40.3% 46.6% 51.4% 53.1% 42.6% 2008 5/5 3.0 3.0 54.3% 56.9% 45.0% 58.1% 50.8% 51.2% 37.7%
30 2006 37/53 1.3 3.7 67.8% 60.4% 43.2% 56.7% 47.8% 54.8% 44.7% 2009 9/9 5.1 2.6 46.3% 64.4% 45.7% 49.6% 31.2% 54.0% 33.6%
31 2007 36/38 1.2 5.6 62.8% 58.7% 42.4% 52.3% 50.3% 52.7% 47.1% — —/— — — — — — — — — —
32 2008 41/48 0.9 5.3 63.3% 60.9% 43.5% 52.1% 43.6% 54.4% 45.4% — —/— — — — — — — — — —
33 2009 26/28 0.8 4.9 65.4% 58.3% 42.7% 43.8% 45.1% 52.8% 41.1% — —/— — — — — — — — — —
Career — 170/782 1.1 4.9 64.3% 60.3% 43.2% 52.6% 46.7% 54.1% 45.2% — 94/466 5.2 4.2 53.4% 69.5% 45.8% 55.6% 39.9% 58.3% 38.9%

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 Ai Sugiyama Meghann Shaughnessy
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 1992 1478 102.6 — — — — +34 — — 30.8% -1.31 1–2 (33%) 0–2 — +0.31 — — — — — — — — — — — — — — — —
17 1993 1487 125.5 — — — — +44 — — 37.0% -0.89 1–4 (20%) — — -0.26 1996 1512 107.9 — — — — +9 +65 — 47.1% 0.00 1–2 (33%) — — +0.72
18 1994 1557 120.7 — — — — +41 — — 47.8% +0.13 4–4 (50%) 1–2 (33%) — +1.49 1997 1499 96.7 — — — — — — — 33.3% -2.33 0–1 — — +0.03
19 1995 1665 135.9 — — — — -9 -11 — 49.3% +0.23 4–7 (36%) 3–0 (100%) 101.9 +0.28 1998 1544 115.4 — — — — -48 +81 — 46.2% -0.03 3–2 (60%) 0–2 — +0.65
20 1996 1751 143.7 — — — — -8 -156 -152 54.3% +0.29 5–5 (50%) 3–3 (50%) 99.1 +0.30 1999 1439 99.7 — — — — +16 +55 +130 36.5% -0.77 3–7 (30%) 3–5 (38%) 93.7 +2.27
21 1997 1837 150.1 — — — — +27 -234 -204 51.5% 0.00 14–8 (64%) 11–8 (58%) 106.9 -1.35 2000 1652 133.2 — — — — -10 -80 -108 54.2% +0.11 4–6 (40%) 7–6 (54%) 102.1 +0.56
22 1998 1862 153.1 — — — — +57 -206 -239 60.3% +0.68 12–5 (71%) 9–4 (69%) 107.7 +0.41 2001 1832 151.0 — — — — -45 -52 -141 59.9% +0.71 15–6 (71%) 15–11 (58%) 110.5 +1.29
23 1999 1808 151.0 — — — — +46 -168 -203 53.0% +0.21 8–7 (53%) 4–4 (50%) 99.6 -1.12 2002 1738 139.5 — — — — +19 -30 -36 51.6% +0.17 9–9 (50%) 5–6 (45%) 94.1 +0.83
24 2000 1679 137.5 — — — — +24 +5 -92 46.1% -0.54 5–7 (42%) 7–5 (58%) 99.7 -0.80 2003 1730 144.7 +2.14 -0.89 0.995 50.1% +45 -9 — 57.6% +0.54 9–8 (53%) 7–10 (41%) 96.1 +1.17
25 2001 1719 138.7 — — — — +19 -57 -121 53.7% +0.17 10–11 (48%) 6–2 (75%) 102.9 -0.48 2004 1662 135.5 +1.00 -1.59 0.925 48.6% +19 +57 -22 50.0% +0.18 5–7 (42%) 5–8 (38%) 96.1 +1.24
26 2002 1755 141.6 — — — — +15 -109 -67 56.1% +0.32 9–8 (53%) 8–6 (57%) 100.6 -0.40 2005 1566 122.3 +4.57 -2.35 1.103 51.7% +20 +69 +81 44.8% -0.34 4–9 (31%) 7–6 (54%) 94.8 +0.33
27 2003 1915 154.1 +1.48 +3.41 1.113 52.2% -8 -157 -164 58.3% +0.63 22–10 (69%) 7–7 (50%) 105.4 +1.81 2006 1709 130.5 +1.38 -2.93 0.947 48.9% -49 +14 — 55.0% +0.25 9–6 (60%) 4–1 (80%) 107.6 -1.20
28 2004 1808 144.1 +0.61 +2.40 1.121 52.5% -4 -67 +28 57.5% +0.58 8–7 (53%) 4–8 (33%) 97.4 +2.38 2007 1666 128.5 +1.99 -3.46 0.952 49.3% -76 +156 -17 47.7% -0.09 4–6 (40%) 3–6 (33%) 96.4 +0.26
29 2005 1742 133.4 -1.10 -0.52 0.908 47.7% +17 -41 -12 51.1% +0.11 11–16 (41%) 6–4 (60%) 94.4 +2.95 2008 1580 93.2 -2.35 -2.24 0.773 45.3% — +131 — 14.3% -2.86 0–1 — — -0.09
30 2006 1744 138.5 -0.78 +0.79 0.988 49.8% +9 -91 +46 50.8% +0.14 10–8 (56%) 2–14 (13%) 94.4 +0.98 2009 1534 114.6 -0.18 -4.49 0.730 44.3% -22 — — 23.8% -2.14 0–3 (0%) — — -0.71
31 2007 1633 125.5 -2.23 +2.56 0.996 50.0% -7 +43 +130 47.3% -0.13 8–9 (47%) 5–4 (56%) 98.7 +1.74 — — — — — — — — — — — — — — — —
32 2008 1713 136.4 -0.29 +1.82 0.995 49.6% +26 -71 +32 48.5% -0.19 8–5 (62%) 5–5 (50%) 105.2 +0.32 — — — — — — — — — — — — — — — —
33 2009 1627 135.9 -1.68 -1.34 0.871 46.9% +43 -37 +108 35.6% -0.86 2–5 (29%) 4–3 (57%) 100.4 -0.98 — — — — — — — — — — — — — — — —
Career — 1952 148.1 -0.87 +1.32 0.986 49.6% +18 -90 -55 52.1% +0.15 142–128 (53%) 85–81 (51%) 103.0 +0.97 — 1904 137.9 +1.67 -2.91 0.933 48.8% -6 +25 -17 50.9% +0.08 66–73 (47%) 56–61 (48%) 95.9 +1.59

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.