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

Petra Cetkovska vs Erika Sema H2H: 1-0

Petra Cetkovska holds a 1–0 lead over Erika Sema in their WTA head-to-head. Across 1 main-draw meeting, Petra Cetkovska leads 1–0 on hard courts. Most recently, Petra Cetkovska won the 2011 Japan Women's Open round of 16 6-0 6-3.

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Petra Cetkovska
Czech Republic Age 41 Right-Handed 172 cm / 5'8"
H2H
1 – 0
1 main-draw meetings
Erika Sema
Japan Age 37 N/A 164 cm / 5'5"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Petra Cetkovska #32 6-0 6-3 Erika Sema #114 Match data Oct 14, 2011* R16 Japan Women's Open 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
Petra Cetkovska #954 #25 1,955 1,764 73 82 47.1% 0 0 0 0 0 0
Erika Sema #494 #114 570 1,510 2 9 18.2% 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 Petra Cetkovska Erika Sema
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
22 2007 1–2 33.3% #104 1,501 0 0 2011 1–2 33.3% #128 1,503 0 0
23 2008 12–15 44.4% #83 1,515 0 0 2012 1–5 16.7% #192 1,479 0 0
24 2009 7–12 36.8% #149 1,510 0 0 — — — — — — —
25 2010 1–1 50.0% #143 1,506 0 0 2014 0–1 0.0% #270 1,465 0 0
26 2011 15–9 62.5% #31 1,699 0 0 — — — — — — —
27 2012 17–15 53.1% #55 1,721 0 0 2016 0–1 0.0% #373 1,431 0 0
28 2013 5–8 38.5% #139 1,647 0 0 — — — — — — —
29 2014 13–11 54.2% #58 1,697 0 0 — — — — — — —
30 2015 2–6 25.0% #130 1,630 0 0 — — — — — — —
31 2016 0–3 0.0% #591 1,595 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 Petra Cetkovska Erika Sema
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 %
22 2007 1 2 3 33.3% — — — — — — — — — — — — 2011 1 2 3 33.3% — — — — — — — — — — — —
23 2008 1 7 8 12.5% 8 6 14 57.1% 3 2 5 60.0% — — — — 2012 1 5 6 16.7% — — — — — — — — — — — —
24 2009 3 4 7 42.9% 3 5 8 37.5% 1 3 4 25.0% — — — — — — — — — — — — — — — — — — — — —
25 2010 — — — — 1 1 2 50.0% — — — — — — — — 2014 0 1 1 0.0% — — — — — — — — — — — —
26 2011 9 6 15 60.0% 3 2 5 60.0% 3 1 4 75.0% — — — — — — — — — — — — — — — — — — — — —
27 2012 4 5 9 44.4% 10 6 16 62.5% 2 3 5 40.0% 1 1 2 50.0% 2016 0 1 1 0.0% — — — — — — — — — — — —
28 2013 1 4 5 20.0% 2 2 4 50.0% 2 2 4 50.0% — — — — — — — — — — — — — — — — — — — — —
29 2014 4 3 7 57.1% 6 6 12 50.0% 3 2 5 60.0% — — — — — — — — — — — — — — — — — — — — —
30 2015 2 3 5 40.0% 0 1 1 0.0% 0 2 2 0.0% — — — — — — — — — — — — — — — — — — — — —
31 2016 0 3 3 0.0% — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
Career — 25 37 62 40.3% 33 29 62 53.2% 14 15 29 48.3% 1 1 2 50.0% — 2 9 11 18.2% — — — — — — — — — — — —

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 129/155 of Petra Cetkovska's and 11/11 of Erika Sema'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 Petra Cetkovska Erika Sema
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%
22 2007 2/3 2.5 2.5 71.1% 60.4% 31.3% 65.0% 45.0% 52.0% 42.5% 2011 3/3 0.0 0.7 84.0% 50.0% 43.1% 19.8% 25.0% 48.6% 30.8%
23 2008 21/27 1.6 3.9 65.5% 60.6% 44.3% 45.1% 51.7% 54.7% 44.6% 2012 6/6 0.5 1.2 72.5% 58.0% 41.2% 35.5% 28.9% 53.3% 41.8%
24 2009 16/19 1.0 5.3 63.0% 59.8% 42.7% 47.3% 47.1% 53.3% 42.7% — —/— — — — — — — — — —
25 2010 2/2 2.5 4.5 60.2% 56.7% 37.9% 45.8% 52.4% 49.3% 45.8% 2014 1/1 0.0 5.0 82.6% 52.6% 8.3% 46.2% 75.0% 44.9% 38.0%
26 2011 22/24 2.0 5.8 60.3% 64.2% 47.4% 49.8% 56.1% 57.6% 45.3% — —/— — — — — — — — — —
27 2012 26/32 1.6 4.8 63.8% 63.7% 39.5% 52.2% 50.3% 55.1% 47.3% 2016 1/1 0.0 2.0 74.2% 41.3% 31.3% 63.2% 33.3% 38.7% 41.0%
28 2013 11/13 2.3 4.1 59.5% 63.3% 45.1% 58.3% 46.8% 55.9% 43.0% — —/— — — — — — — — — —
29 2014 21/24 2.0 4.7 61.0% 60.0% 42.7% 44.8% 54.7% 52.9% 45.7% — —/— — — — — — — — — —
30 2015 5/8 2.2 6.4 61.8% 59.8% 45.2% 39.3% 25.0% 54.6% 28.2% — —/— — — — — — — — — —
31 2016 3/3 1.7 4.7 57.9% 49.3% 34.2% 34.7% 0.0% 43.5% 25.4% — —/— — — — — — — — — —
Career — 129/155 1.8 4.8 62.4% 61.5% 43.0% 48.5% 49.3% 54.5% 44.0% — 11/11 0.3 1.5 76.7% 53.8% 37.8% 34.7% 32.4% 49.9% 38.4%

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 Petra Cetkovska Erika Sema
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
22 2007 1502 107.9 +1.18 -1.62 0.887 47.5% +19 — — 42.9% -1.14 0–1 1–0 — -0.03 2011 1503 98.1 -1.29 -2.30 0.599 39.5% +24 — — 33.3% -2.33 — — — -0.01
23 2008 1515 105.8 -0.98 -0.50 0.986 49.6% -64 +100 +137 42.9% -0.41 2–2 (50%) 2–5 (29%) 98.4 +1.00 2012 1479 106.5 -2.00 +0.15 0.894 46.9% +13 — — 23.1% -1.85 0–1 — — -0.15
24 2009 1510 117.6 -1.23 -0.70 0.916 48.1% -18 +85 +95 38.1% -0.50 2–2 (50%) 2–2 (50%) 102.0 +0.14 — — — — — — — — — — — — — — — —
25 2010 1506 96.8 -1.81 -1.04 0.904 48.0% — — — 50.0% -1.00 — — — +0.34 2014 1465 97.1 -1.80 -0.73 0.691 41.4% — — — 33.3% -3.00 0–1 — — +0.08
26 2011 1699 138.0 +2.22 +1.50 1.067 51.2% -59 -79 -25 58.6% +0.67 8–4 (67%) 6–1 (86%) 110.6 +0.37 — — — — — — — — — — — — — — — —
27 2012 1721 128.5 -0.29 +2.74 1.053 51.3% -59 +4 -65 52.9% +0.19 5–3 (63%) 1–2 (33%) 102.2 -0.19 2016 1432 84.1 -4.88 -0.94 0.669 39.6% — — — 0.0% -5.50 — — — +0.07
28 2013 1648 112.7 -0.14 -0.68 0.975 49.7% -54 +63 -5 46.9% +0.03 1–5 (17%) 1–1 — -0.22 2017 1416 98.7 — — — — — — — — — — — — —
29 2014 1697 125.5 -1.77 +0.79 0.971 49.4% -47 +10 -24 49.2% -0.10 8–3 (73%) 2–2 (50%) 106.0 +0.29 2018 1406 89.4 — — — — — — — — — — — — —
30 2015 1631 104.2 -2.06 -4.58 0.621 41.8% +18 — — 26.3% -1.53 2–1 (67%) 1–1 — +0.26 — — — — — — — — — — — — — — — —
31 2016 1596 96.1 -3.10 -4.13 0.449 34.7% +8 — — 0.0% -4.33 — — — -0.37 — — — — — — — — — — — — — — — —
33 — — — — — — — — — — — — — — — — 2022 1394 98.1 — — — — — — — — — — — — —
Career — 1765 125.6 -0.45 +0.40 0.967 49.3% -41 +36 +19 46.7% -0.18 28–21 (57%) 16–14 (53%) 107.8 +1.03 — 1511 91.3 -2.05 -0.70 0.766 43.7% +17 — — 25.0% -2.42 0–2 — — -0.09

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.