H2H data updated: 2026-07-19 14:15 UTC
Klara Koukalova vs Ai Sugiyama H2H: 0-1
Ai Sugiyama holds a 1–0 lead over Klara Koukalova in their WTA head-to-head. Across 1 main-draw meeting, Ai Sugiyama leads 1–0 on grass. Most recently, Ai Sugiyama won the 2004 Wimbledon second round 6-4 6-4.
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CZE
Age 44
Right-Handed
166 cm / 5'5"
H2H
0
–
1
1 main draw meetings
JPN
Age 51
Right-Handed
163 cm / 5'4"
H2H Match Log
| Date | Tournament | Category | Round | Surface | Winner | Score | Loser | Match |
|---|---|---|---|---|---|---|---|---|
| Jun 25, 2004* | Wimbledon | Grand Slam | R64 | Grass | Ai Sugiyama | 6-4 6-4 | Klara Koukalova | Match data |
* Estimated match date where the exact historical date is unavailable.
Career Comparison
| Player | Current | Peak | Pts | Elo | W | L | Win % | GS | 1000 | Finals | 500 | 250 | Titles |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Klara Koukalova | #566 | #20 | 1,860 | 1,807 | 275 | 285 | 49.1% | 0 | 0 | 0 | 0 | 3 | 3 |
| Ai Sugiyama | #97 | #8 | 2,400 | 1,951 | 411 | 362 | 53.2% | 0 | 0 | 0 | 4 | 2 | 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 | Klara Koukalova | Ai Sugiyama | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 16 | — | — | — | — | — | — | — | 1992 | 1–4 | 20.0% | #184 | 1,477 | 0 | 0 |
| 17 | — | — | — | — | — | — | — | 1993 | 3–8 | 27.3% | #145 | 1,487 | 0 | 0 |
| 18 | — | — | — | — | — | — | — | 1994 | 9–11 | 45.0% | #72 | 1,557 | 0 | 0 |
| 19 | 2001 | 5–4 | 55.6% | #139 | 1,519 | 0 | 0 | 1995 | 16–17 | 48.5% | #46 | 1,691 | 0 | 0 |
| 20 | 2002 | 4–5 | 44.4% | #117 | 1,527 | 0 | 0 | 1996 | 22–18 | 55.0% | #28 | 1,738 | 0 | 0 |
| 21 | 2003 | 14–19 | 42.4% | #63 | 1,537 | 0 | 0 | 1997 | 31–25 | 55.4% | #21 | 1,833 | 0 | 1 |
| 22 | 2004 | 26–22 | 54.2% | #46 | 1,648 | 0 | 0 | 1998 | 37–21 | 63.8% | #18 | 1,859 | 0 | 3 |
| 23 | 2005 | 32–19 | 62.7% | #35 | 1,770 | 0 | 2 | 1999 | 27–23 | 54.0% | #24 | 1,806 | 0 | 3 |
| 24 | 2006 | 10–22 | 31.2% | #117 | 1,548 | 0 | 2 | 2000 | 20–24 | 45.5% | #32 | 1,687 | 0 | 3 |
| 25 | 2007 | 12–12 | 50.0% | #63 | 1,579 | 0 | 2 | 2001 | 28–25 | 52.8% | #30 | 1,720 | 0 | 3 |
| 26 | 2008 | 21–21 | 50.0% | #72 | 1,590 | 0 | 2 | 2002 | 35–26 | 57.4% | #24 | 1,755 | 0 | 3 |
| 27 | 2009 | 8–17 | 32.0% | #90 | 1,537 | 0 | 2 | 2003 | 44–25 | 63.8% | #10 | 1,915 | 0 | 5 |
| 28 | 2010 | 20–20 | 50.0% | #41 | 1,656 | 0 | 2 | 2004 | 30–22 | 57.7% | #17 | 1,802 | 0 | 6 |
| 29 | 2011 | 29–25 | 53.7% | #41 | 1,712 | 0 | 2 | 2005 | 28–27 | 50.9% | #29 | 1,742 | 0 | 6 |
| 30 | 2012 | 24–21 | 53.3% | #28 | 1,729 | 0 | 2 | 2006 | 28–25 | 52.8% | #26 | 1,742 | 0 | 6 |
| 31 | 2013 | 27–25 | 51.9% | #35 | 1,679 | 0 | 2 | 2007 | 17–21 | 44.7% | #38 | 1,632 | 0 | 6 |
| 32 | 2014 | 29–27 | 51.8% | #40 | 1,611 | 0 | 3 | 2008 | 26–21 | 55.3% | #31 | 1,742 | 0 | 6 |
| 33 | 2015 | 14–22 | 38.9% | #99 | 1,572 | 0 | 3 | 2009 | 9–19 | 32.1% | #97 | 1,647 | 0 | 6 |
| 34 | 2016 | 0–4 | 0.0% | #400 | 1,499 | 0 | 3 | — | — | — | — | — | — | — |