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

Andreja Klepac vs Ai Sugiyama H2H: 0-2

Ai Sugiyama holds a 2–0 lead over Andreja Klepac in their WTA head-to-head. Across 2 main-draw meetings, Ai Sugiyama leads 2–0 on hard courts. Most recently, Ai Sugiyama won the 2008 US Open first round 4-6 6-3 4-2 RET.

Slovenia Age 40 Right-Handed 175 cm / 5'9"
H2H
0 2
2 main-draw meetings
JPN Age 51 Right-Handed 163 cm / 5'4"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Ai Sugiyama #32 4-6 6-3 4-2 (ret.) Andreja Klepac #119 Match data Aug 27, 2008* R128 US Open Grand Slam Hard
Ai Sugiyama #30 6-3 6-1 Andreja Klepac #125 Match data Aug 29, 2007* R128 US Open Grand Slam 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
Andreja Klepac #1,209 #99 544 1,579 15 29 34.1% 0 0 0 0 0 0
Ai Sugiyama #97 #8 2,400 1,951 416 366 53.2% 0 0 0 2 4 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 Andreja Klepac Ai Sugiyama
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
18 2004 0–1 0.0% #404 1,484 0 0 1994 9–11 45.0% #72 1,556 0 0
19 2005 0–1 0.0% #306 1,470 0 0 1995 16–17 48.5% #46 1,665 0 0
20 2006 3–2 60.0% #212 1,495 0 0 1996 24–19 55.8% #28 1,751 0 0
21 2007 3–10 23.1% #135 1,457 0 0 1997 31–25 55.4% #21 1,837 0 1
22 2008 8–8 50.0% #125 1,542 0 0 1998 37–21 63.8% #18 1,862 0 3
23 2009 1–4 20.0% #275 1,523 0 0 1999 27–23 54.0% #24 1,807 0 3
24 2010 0–3 0.0% #313 1,480 0 0 2000 20–25 44.4% #32 1,679 0 3
25 2001 28–25 52.8% #30 1,718 0 3
26 2002 35–26 57.4% #24 1,755 0 3
27 2003 44–25 63.8% #10 1,915 0 5
28 2004 33–23 58.9% #17 1,808 0 6
29 2005 28–27 50.9% #29 1,741 0 6
30 2006 28–25 52.8% #26 1,743 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 Andreja Klepac Ai Sugiyama
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%
18 2004 0 1 1 0.0% 1994 6 7 13 46.2% 0 2 2 0.0% 3 2 5 60.0%
19 2005 0 1 1 0.0% 1995 5 8 13 38.5% 6 4 10 60.0% 0 2 2 0.0% 5 3 8 62.5%
20 2006 3 2 5 60.0% 1996 19 11 30 63.3% 0 3 3 0.0% 4 2 6 66.7% 1 3 4 25.0%
21 2007 1 6 7 14.3% 1 3 4 25.0% 1 1 2 50.0% 1997 19 13 32 59.4% 3 5 8 37.5% 2 2 4 50.0% 7 5 12 58.3%
22 2008 2 5 7 28.6% 6 3 9 66.7% 1998 24 9 33 72.7% 6 5 11 54.5% 1 2 3 33.3% 6 5 11 54.5%
23 2009 0 2 2 0.0% 1 2 3 33.3% 1999 18 11 29 62.1% 3 4 7 42.9% 2 2 4 50.0% 4 6 10 40.0%
24 2010 0 1 1 0.0% 0 2 2 0.0% 2000 11 13 24 45.8% 6 5 11 54.5% 1 2 3 33.3% 2 5 7 28.6%
25 2001 20 14 34 58.8% 4 6 10 40.0% 2 3 5 40.0% 2 2 4 50.0%
26 2002 26 16 42 61.9% 4 6 10 40.0% 5 3 8 62.5% 0 1 1 0.0%
27 2003 29 16 45 64.4% 7 4 11 63.6% 4 2 6 66.7% 4 3 7 57.1%
28 2004 22 14 36 61.1% 5 5 10 50.0% 5 2 7 71.4% 1 2 3 33.3%
29 2005 20 17 37 54.1% 7 6 13 53.8% 1 3 4 25.0% 0 1 1 0.0%
30 2006 22 18 40 55.0% 1 3 4 25.0% 5 3 8 62.5% 0 1 1 0.0%
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 6 17 23 26.1% 8 11 19 42.1% 1 1 2 50.0% 280 216 496 56.5% 59 67 126 46.8% 38 39 77 49.4% 39 44 83 47.0%

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 Andreja Klepac Ai Sugiyama
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
18 2004 1485 98.1 0.0% -1.50 0–1 +0.06 1994 1557 120.7 +41 47.8% +0.13 4–4 (50%) 1–2 (33%) +1.49
19 2005 1470 97.1 33.3% -1.33 0–1 +0.07 1995 1665 135.9 -9 -11 49.3% +0.23 4–7 (36%) 3–0 (100%) 101.9 +0.28
20 2006 1495 100.8 +25 50.0% +0.42 2–0 0–1 +0.58 1996 1751 143.7 -8 -156 -152 54.3% +0.29 5–5 (50%) 3–3 (50%) 99.1 +0.30
21 2007 1457 107.1 -0.28 -3.27 0.802 45.7% +13 +36 32.3% -1.32 1–4 (20%) 1–1 -0.24 1997 1837 150.1 +27 -234 -204 51.5% 0.00 14–8 (64%) 11–8 (58%) 106.9 -1.35
22 2008 1543 116.1 -0.30 +1.07 0.994 49.7% -68 +59 51.4% -0.03 3–2 (60%) 4–1 (80%) 105.7 -0.44 1998 1862 153.1 +57 -206 -239 60.3% +0.68 12–5 (71%) 9–4 (69%) 107.7 +0.41
23 2009 1523 106.2 -1.74 -0.84 0.822 46.0% +55 30.8% -1.39 1–2 (33%) -0.31 1999 1808 151.0 +46 -168 -203 53.0% +0.21 8–7 (53%) 4–4 (50%) 99.6 -1.12
24 2010 1480 91.0 -2.91 -1.67 0.677 41.2% 0.0% -3.67 +0.31 2000 1679 137.5 +24 +5 -92 46.1% -0.54 5–7 (42%) 7–5 (58%) 99.7 -0.80
25 2001 1719 138.7 +19 -57 -121 53.7% +0.17 10–11 (48%) 6–2 (75%) 102.9 -0.48
26 2002 1755 141.6 +15 -109 -67 56.1% +0.32 9–8 (53%) 8–6 (57%) 100.6 -0.40
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
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
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
30 2016 1455 94.5 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
31 2017 1428 95.7 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 2019 1414 95.7 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
35 2021 1410 99.8
Career 1580 104.9 -0.69 -0.48 0.895 47.5% -14 +53 38.2% -0.82 7–9 (44%) 5–4 (56%) 100.0 +0.07 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

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.