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

Klara Koukalova vs Masa Zec-Peskiric H2H: 1-0

Klara Koukalova holds a 1–0 lead over Masa Zec-Peskiric in their WTA head-to-head. Across 1 main-draw meeting, Klara Koukalova leads 1–0 on hard courts. Most recently, Klara Koukalova won the 2009 Portoroz round of 32 6-2 6-4.

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

Klara Koukalova
Czech Republic Age 44 Right-Handed 166 cm / 5'5"
H2H
1 – 0
1 main-draw meetings
Masa Zec-Peskiric
SLO Age 39 Right-Handed

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Klara Koukalova #118 6-2 6-4 Masa Zec-Peskiric #101 Match data Jul 23, 2009* R32 Portoroz International → modern equivalent WTA 250 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
Klara Koukalova #566 #20 1,860 1,803 275 288 48.8% 0 0 0 0 3 3
Masa Zec-Peskiric #1,212 #93 712 1,522 6 21 22.2% 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 Klara Koukalova Masa Zec-Peskiric
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
18 — — — — — — — 2005 1–1 50.0% #331 1,509 0 0
19 2001 5–4 55.6% #139 1,519 0 0 2006 0–1 0.0% #406 1,497 0 0
20 2002 4–5 44.4% #117 1,527 0 0 2007 0–2 0.0% #182 1,488 0 0
21 2003 14–19 42.4% #63 1,537 0 0 2008 0–1 0.0% #131 1,477 0 0
22 2004 26–23 53.1% #46 1,611 0 0 2009 4–9 30.8% #120 1,458 0 0
23 2005 32–19 62.7% #35 1,764 0 2 2010 1–6 14.3% #144 1,417 0 0
24 2006 10–22 31.2% #117 1,546 0 2 2011 0–1 0.0% #284 1,411 0 0
25 2007 12–12 50.0% #63 1,578 0 2 — — — — — — —
26 2008 21–22 48.8% #72 1,574 0 2 — — — — — — —
27 2009 8–17 32.0% #90 1,533 0 2 — — — — — — —
28 2010 20–20 50.0% #41 1,656 0 2 — — — — — — —
29 2011 29–25 53.7% #41 1,713 0 2 — — — — — — —
30 2012 24–22 52.2% #28 1,721 0 2 — — — — — — —
31 2013 27–25 51.9% #35 1,675 0 2 — — — — — — —
32 2014 29–27 51.8% #40 1,611 0 3 — — — — — — —
33 2015 14–22 38.9% #99 1,549 0 3 — — — — — — —
34 2016 0–4 0.0% #400 1,486 0 3 — — — — — — —

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 Klara Koukalova Masa Zec-Peskiric
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 %
18 — — — — — — — — — — — — — — — — — 2005 1 1 2 50.0% — — — — — — — — — — — —
19 2001 — — — — 5 3 8 62.5% — — — — 0 1 1 0.0% 2006 0 1 1 0.0% — — — — — — — — — — — —
20 2002 0 2 2 0.0% 4 3 7 57.1% — — — — — — — — 2007 0 1 1 0.0% 0 1 1 0.0% — — — — — — — —
21 2003 3 6 9 33.3% 11 11 22 50.0% 0 1 1 0.0% 0 1 1 0.0% 2008 — — — — 0 1 1 0.0% — — — — — — — —
22 2004 8 12 20 40.0% 13 9 22 59.1% 5 2 7 71.4% — — — — 2009 0 3 3 0.0% 4 5 9 44.4% 0 1 1 0.0% — — — —
23 2005 16 11 27 59.3% 11 6 17 64.7% 5 1 6 83.3% 0 1 1 0.0% 2010 0 1 1 0.0% 1 5 6 16.7% — — — — — — — —
24 2006 4 11 15 26.7% 4 7 11 36.4% 1 3 4 25.0% 1 1 2 50.0% 2011 — — — — 0 1 1 0.0% — — — — — — — —
25 2007 5 7 12 41.7% 7 5 12 58.3% — — — — — — — — — — — — — — — — — — — — — — — — —
26 2008 6 9 15 40.0% 15 10 25 60.0% 0 2 2 0.0% 0 1 1 0.0% — — — — — — — — — — — — — — — — —
27 2009 1 7 8 12.5% 7 9 16 43.8% 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — —
28 2010 12 11 23 52.2% 5 8 13 38.5% 3 1 4 75.0% — — — — — — — — — — — — — — — — — — — — —
29 2011 16 15 31 51.6% 10 7 17 58.8% 2 2 4 50.0% 1 1 2 50.0% — — — — — — — — — — — — — — — — —
30 2012 8 12 20 40.0% 8 6 14 57.1% 5 3 8 62.5% 3 1 4 75.0% — — — — — — — — — — — — — — — — —
31 2013 17 16 33 51.5% 7 6 13 53.8% 2 2 4 50.0% 1 1 2 50.0% — — — — — — — — — — — — — — — — —
32 2014 18 17 35 51.4% 4 6 10 40.0% 6 3 9 66.7% 1 1 2 50.0% — — — — — — — — — — — — — — — — —
33 2015 5 14 19 26.3% 6 5 11 54.5% 3 3 6 50.0% — — — — — — — — — — — — — — — — — — — — —
34 2016 0 4 4 0.0% — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
Career — 119 154 273 43.6% 117 101 218 53.7% 32 24 56 57.1% 7 9 16 43.8% — 1 7 8 12.5% 5 13 18 27.8% 0 1 1 0.0% — — — —

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 Klara Koukalova Masa Zec-Peskiric
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
18 — — — — — — — — — — — — — — — — 2005 1510 100.5 — — — — — — — 50.0% -0.75 — — — -0.07
19 2001 1520 104.0 — — — — — +55 — 47.8% +0.26 4–1 (80%) 0–1 — +1.03 2006 1498 97.9 — — — — — — — 33.3% -1.67 0–1 — — -0.04
20 2002 1527 105.4 — — — — — +71 — 50.0% -0.42 2–4 (33%) 1–0 — +0.68 2007 1488 96.5 -2.86 +0.74 0.486 32.2% — — — 0.0% -4.50 — — — -0.54
21 2003 1537 119.8 — — — — -60 +108 — 44.4% -0.35 7–8 (47%) 1–3 (25%) 99.1 +0.56 2008 1478 99.9 -3.26 -1.75 0.829 45.4% — — — 0.0% -2.50 — — — -0.08
22 2004 1612 117.6 — — — — -110 +85 +30 49.5% -0.07 8–7 (53%) 6–4 (60%) 103.5 +0.67 2009 1459 102.4 -1.65 -1.30 0.866 47.0% -7 +89 — 33.3% -1.27 2–2 (50%) 1–0 — +0.01
23 2005 1764 126.4 — — — — -90 +7 -18 55.5% +0.09 15–4 (79%) 9–2 (82%) 118.0 +1.13 2010 1418 94.4 -3.42 -2.17 0.810 45.1% — +66 — 20.0% -2.13 0–1 — — +0.14
24 2006 1547 107.1 — — — — +14 +77 +135 37.0% -1.05 2–7 (22%) 3–3 (50%) 92.0 +0.20 2011 1411 100.2 +0.33 -2.64 0.596 39.8% — — — 0.0% -3.50 — — — -0.08
25 2007 1579 115.5 — — — — -13 +59 — 50.0% +0.06 3–5 (38%) 3–4 (43%) 98.3 +0.21 — — — — — — — — — — — — — — — —
26 2008 1574 111.3 — — — — -45 +84 — 48.5% -0.08 10–9 (53%) 3–5 (38%) 100.5 +0.48 — — — — — — — — — — — — — — — —
27 2009 1534 110.3 — — — — -72 +97 — 35.0% -0.95 5–5 (50%) 4–5 (44%) 100.5 -0.40 — — — — — — — — — — — — — — — —
28 2010 1657 126.4 — — — — -49 -66 +4 46.2% -0.20 10–5 (67%) 5–6 (45%) 106.2 +0.89 — — — — — — — — — — — — — — — —
29 2011 1713 131.7 — — — — -15 -60 -54 50.4% -0.03 13–6 (68%) 7–4 (64%) 109.2 +0.80 — — — — — — — — — — — — — — — —
30 2012 1721 128.0 — — — — -45 -9 -3 51.0% +0.17 10–6 (63%) 5–7 (42%) 103.3 -0.68 — — — — — — — — — — — — — — — —
31 2013 1676 139.6 — — — — -9 +65 +31 51.7% +0.15 9–9 (50%) 6–9 (40%) 95.7 -1.87 — — — — — — — — — — — — — — — —
32 2014 1612 127.9 -2.87 -0.03 0.906 47.8% +13 +61 +151 50.8% -0.13 10–8 (56%) 11–4 (73%) 104.3 -0.55 — — — — — — — — — — — — — — — —
33 2015 1549 110.8 -2.79 +1.36 0.935 48.1% -28 +101 +170 40.5% -0.84 2–6 (25%) 3–4 (43%) 95.0 -0.51 — — — — — — — — — — — — — — — —
34 2016 1486 101.6 -2.24 -1.27 0.765 45.0% -28 — — 27.3% -1.55 0–3 (0%) 0–1 — +0.16 — — — — — — — — — — — — — — — —
Career — 1804 125.9 -2.79 +0.55 0.910 47.8% -34 +51 +56 47.9% -0.19 110–93 (54%) 67–62 (52%) 106.6 +0.50 — 1523 97.9 -2.34 -1.48 0.783 44.6% -7 +80 — 26.7% -1.80 2–4 (33%) 1–0 — -2.44

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.