H2H data updated: 2026-09-06 00:00 UTC

Jan Hernych vs Marcos Ondruska

Compare the head-to-head record, career totals, season-by-season performance, and match log for Jan Hernych vs Marcos Ondruska.

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Jan Hernych
CZE Age 47 Right-Handed 190 cm / 6'3"
H2H
0 – 0
0 main-draw meetings
Marcos Ondruska
RSA Age 53 Right-Handed 183 cm / 6'0"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Marcos Ondruska #220 6-2 4-6 6-4 Jan Hernych #187 Match data May 29, 2001* Q3 Q Roland Garros Grand Slam Clay

1 qualifying meeting shown in the table; qualifying is excluded from the H2H score. 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
Jan Hernych #1,606 #59 1,157 1,783 79 115 40.7% 0 0 0 0 0 0
Marcos Ondruska #1,352 #27 1,007 1,786 106 138 43.4% 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 Jan Hernych Marcos Ondruska
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
17 — — — — — — — 1990 3–3 50.0% #256 1,537 0 0
18 — — — — — — — 1991 3–5 37.5% #137 1,589 0 0
19 — — — — — — — 1992 11–10 52.4% #67 1,640 0 0
20 2000 0–1 0.0% #272 1,485 0 0 1993 26–29 47.3% #47 1,568 0 0
21 — — — — — — — 1994 15–17 46.9% #98 1,686 0 0
22 2002 0–1 0.0% #214 1,475 0 0 1995 16–19 45.7% #114 1,665 0 0
23 — — — — — — — 1996 17–20 45.9% #102 1,675 0 0
24 2004 9–12 42.9% #83 1,571 0 0 1997 12–16 42.9% #113 1,656 0 0
25 2005 18–22 45.0% #74 1,622 0 0 1998 2–10 16.7% #142 1,541 0 0
26 2006 17–20 45.9% #75 1,666 0 0 1999 0–2 0.0% #159 1,520 0 0
27 2007 7–15 31.8% #156 1,612 0 0 2000 0–5 0.0% #204 1,477 0 0
28 2008 4–8 33.3% #81 1,675 0 0 2001 1–2 33.3% #263 1,569 0 0
29 2009 11–23 32.4% #113 1,667 0 0 — — — — — — —
30 2010 0–1 0.0% #241 1,598 0 0 — — — — — — —
31 2011 3–2 60.0% #168 1,664 0 0 — — — — — — —
32 2012 2–1 66.7% #193 1,606 0 0 — — — — — — —
33 2013 5–5 50.0% #219 1,744 0 0 — — — — — — —
34 2014 1–1 50.0% #199 1,701 0 0 — — — — — — —
35 2015 2–2 50.0% #286 1,696 0 0 — — — — — — —
36 2016 0–1 0.0% #424 1,641 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 Jan Hernych Marcos Ondruska
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 %
17 — — — — — — — — — — — — — — — — — 1990 3 3 6 50.0% — — — — — — — — — — — —
18 — — — — — — — — — — — — — — — — — 1991 1 3 4 25.0% 2 1 3 66.7% — — — — 0 1 1 0.0%
19 — — — — — — — — — — — — — — — — — 1992 7 7 14 50.0% 4 1 5 80.0% 0 2 2 0.0% — — — —
20 2000 — — — — 0 1 1 0.0% — — — — — — — — 1993 12 11 23 52.2% 10 11 21 47.6% 4 3 7 57.1% 0 4 4 0.0%
21 — — — — — — — — — — — — — — — — — 1994 11 9 20 55.0% 3 5 8 37.5% 1 2 3 33.3% 0 1 1 0.0%
22 2002 — — — — 0 1 1 0.0% — — — — — — — — 1995 11 12 23 47.8% 1 3 4 25.0% 3 3 6 50.0% 1 1 2 50.0%
23 — — — — — — — — — — — — — — — — — 1996 13 13 26 50.0% 0 3 3 0.0% 2 3 5 40.0% 2 1 3 66.7%
24 2004 9 7 16 56.3% — — — — 0 3 3 0.0% 0 2 2 0.0% 1997 6 10 16 37.5% 4 3 7 57.1% 1 2 3 33.3% 1 1 2 50.0%
25 2005 9 12 21 42.9% 3 5 8 37.5% 5 3 8 62.5% 1 2 3 33.3% 1998 2 7 9 22.2% 0 1 1 0.0% — — — — 0 2 2 0.0%
26 2006 6 9 15 40.0% 4 6 10 40.0% 4 2 6 66.7% 3 3 6 50.0% 1999 0 1 1 0.0% 0 1 1 0.0% — — — — — — — —
27 2007 6 10 16 37.5% 0 4 4 0.0% 1 1 2 50.0% — — — — 2000 0 4 4 0.0% — — — — 0 1 1 0.0% — — — —
28 2008 2 4 6 33.3% 2 2 4 50.0% 0 2 2 0.0% — — — — 2001 0 1 1 0.0% 1 1 2 50.0% — — — — — — — —
29 2009 9 13 22 40.9% 2 7 9 22.2% 0 3 3 0.0% — — — — — — — — — — — — — — — — — — — — —
30 2010 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
31 2011 2 1 3 66.7% — — — — 1 1 2 50.0% — — — — — — — — — — — — — — — — — — — — —
32 2012 — — — — 2 1 3 66.7% — — — — — — — — — — — — — — — — — — — — — — — — —
33 2013 0 1 1 0.0% 0 1 1 0.0% 5 3 8 62.5% — — — — — — — — — — — — — — — — — — — — —
34 2014 — — — — — — — — 1 1 2 50.0% — — — — — — — — — — — — — — — — — — — — —
35 2015 0 1 1 0.0% — — — — 2 1 3 66.7% — — — — — — — — — — — — — — — — — — — — —
36 2016 — — — — — — — — 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — —
Career — 43 59 102 42.2% 13 28 41 31.7% 19 21 40 47.5% 4 7 11 36.4% — 66 81 147 44.9% 25 30 55 45.5% 11 16 27 40.7% 4 11 15 26.7%

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 190/194 of Jan Hernych's and 206/238 of Marcos Ondruska'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 Jan Hernych Marcos Ondruska
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%
18 — —/— — — — — — — — — — 1991 6/8 0.8 1.2 60.4% 61.6% 45.5% 53.7% 54.4% 53.8% 38.1%
19 — —/— — — — — — — — — — 1992 18/21 1.6 2.1 63.0% 62.9% 49.3% 50.1% 45.0% 57.6% 45.0%
20 2000 1/1 1.0 1.0 72.7% 55.0% 33.3% 0.0% 0.0% 49.1% 25.0% 1993 52/55 2.1 3.6 58.9% 64.5% 48.0% 56.6% 45.3% 57.6% 41.2%
21 — —/— — — — — — — — — — 1994 28/32 2.9 3.9 55.5% 68.3% 46.4% 53.4% 52.7% 58.4% 41.4%
22 2002 1/1 0.0 1.0 63.4% 38.5% 20.0% 40.0% 50.0% 31.7% 33.3% 1995 35/35 3.6 3.8 55.6% 69.3% 45.9% 59.4% 50.1% 59.1% 39.7%
23 — —/— — — — — — — — — — 1996 28/37 3.4 2.9 60.1% 67.6% 48.4% 47.7% 41.6% 59.6% 39.7%
24 2004 21/21 3.1 2.0 65.6% 66.1% 49.3% 55.9% 49.3% 60.3% 37.7% 1997 24/28 3.5 4.5 56.5% 66.3% 44.2% 53.2% 41.3% 56.8% 36.8%
25 2005 39/40 2.5 2.3 65.8% 64.8% 50.9% 59.0% 44.9% 60.0% 38.0% 1998 8/12 3.0 3.4 59.1% 63.2% 40.3% 66.6% 47.6% 53.8% 34.1%
26 2006 36/37 2.7 1.7 66.8% 64.4% 51.4% 55.2% 44.3% 60.0% 40.1% 1999 2/2 1.5 6.5 59.5% 59.5% 38.3% 55.0% 21.4% 51.9% 34.5%
27 2007 21/22 3.1 1.6 66.2% 64.5% 49.4% 54.9% 36.1% 59.1% 36.5% 2000 3/5 4.0 5.7 59.6% 66.5% 39.8% 49.2% 20.0% 56.0% 31.2%
28 2008 12/12 2.2 2.6 65.3% 59.8% 51.0% 45.2% 47.7% 56.8% 35.1% 2001 2/3 4.0 8.0 58.1% 67.0% 49.1% 53.5% 35.8% 59.5% 36.8%
29 2009 34/34 3.0 2.4 65.0% 66.1% 48.1% 59.0% 39.0% 59.7% 35.8% — —/— — — — — — — — — —
30 2010 1/1 2.0 2.0 61.2% 58.7% 65.0% 33.3% 33.3% 61.2% 33.7% — —/— — — — — — — — — —
31 2011 5/5 5.0 2.2 68.7% 64.0% 51.8% 77.2% 32.9% 60.3% 36.9% — —/— — — — — — — — — —
32 2012 3/3 2.3 4.0 56.3% 58.6% 47.0% 64.9% 33.3% 53.2% 39.5% — —/— — — — — — — — — —
33 2013 10/10 4.3 3.2 61.1% 67.6% 51.5% 54.1% 34.9% 61.4% 34.9% — —/— — — — — — — — — —
34 2014 2/2 12.0 1.5 69.2% 71.4% 45.7% 66.2% 35.0% 63.4% 34.7% — —/— — — — — — — — — —
35 2015 3/4 4.3 2.7 66.4% 60.1% 51.5% 63.1% 43.3% 57.2% 36.5% — —/— — — — — — — — — —
36 2016 1/1 6.0 2.0 62.9% 67.9% 36.4% 55.6% 40.0% 56.2% 34.6% — —/— — — — — — — — — —
Career — 190/194 3.0 2.2 65.6% 64.6% 49.8% 56.5% 42.0% 59.4% 37.2% — 206/244 2.8 3.6 58.2% 66.2% 46.6% 54.6% 45.8% 57.8% 40.0%

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 Jan Hernych Marcos Ondruska
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
17 — — — — — — — — — — — — — — — — 1990 1537 111.9 — — — — +45 — — 41.7% -1.25 1–1 1–0 — +0.20
18 — — — — — — — — — — — — — — — — 1991 1589 127.8 -3.07 +0.45 0.825 46.5% -15 +24 — 40.0% -0.60 1–1 0–1 — -0.46
19 — — — — — — — — — — — — — — — — 1992 1641 118.5 -2.04 +3.41 1.062 51.0% -37 +25 — 50.0% +0.14 4–2 (67%) 2–3 (40%) 102.8 +1.64
20 2000 1486 98.6 -2.51 +0.58 0.491 38.4% — — — 0.0% -4.00 — — — +0.16 1993 1568 136.6 -2.53 +2.02 0.972 49.6% +55 +92 +20 49.3% -0.07 7–11 (39%) 5–5 (50%) 96.4 +1.65
21 2001 1474 101.0 — — — — — — — — — — — — — 1994 1687 133.1 -1.29 +1.94 0.994 50.0% -8 -54 -101 51.1% +0.02 6–10 (38%) 6–5 (55%) 97.5 -0.64
22 2002 1476 96.0 -0.28 -1.50 0.488 32.5% — — — 0.0% -5.00 — — — +0.02 1995 1666 131.0 -2.18 +1.47 0.970 49.6% +20 -47 -65 46.9% -0.02 8–7 (53%) 4–9 (31%) 98.1 -0.51
23 2003 1461 99.3 — — — — — — — — — — — — — 1996 1675 135.7 -1.48 +1.63 0.982 49.3% +38 -128 -51 45.8% -0.15 5–5 (50%) 7–8 (47%) 97.4 -1.02
24 2004 1572 131.6 -2.45 +1.84 0.949 49.1% +5 — -15 40.4% -0.57 3–4 (43%) 2–4 (33%) 99.9 -0.25 1997 1656 124.4 -3.01 -0.51 0.853 47.2% +1 -41 -28 38.0% -0.69 7–2 (78%) 4–7 (36%) 106.2 -0.01
25 2005 1623 129.5 -1.47 +0.65 0.949 49.0% -58 -65 +45 46.2% -0.34 5–7 (42%) 9–8 (53%) 101.9 -0.80 1998 1541 113.3 -3.51 -1.85 0.737 44.6% +23 — — 23.3% -1.53 1–2 (33%) 1–4 (20%) 96.2 +0.28
26 2006 1667 130.1 -1.41 +2.15 1.001 50.0% -66 -121 +41 47.3% -0.29 3–7 (30%) 7–4 (64%) 96.7 -0.14 1999 1520 102.7 -1.06 +2.09 0.716 43.6% — — — 0.0% -2.80 — — — -0.12
27 2007 1613 131.4 -1.99 +0.62 0.893 47.8% +23 -116 — 36.0% -1.02 1–4 (20%) 1–5 (17%) 94.0 -1.47 2000 1477 113.2 -2.58 +2.02 0.709 43.5% +31 — — 16.7% -2.50 0–2 2–1 (67%) — -0.49
28 2008 1676 117.5 -2.03 -0.68 0.813 46.8% +19 -154 — 37.5% -1.06 2–3 (40%) 4–2 (67%) 99.3 +0.14 2001 1569 114.2 -1.90 +4.79 0.909 48.2% — — — 33.3% -1.83 1–0 1–1 — -0.37
29 2009 1668 137.6 -2.02 -0.08 0.888 47.8% +35 -129 +32 35.6% -0.80 5–9 (36%) 2–6 (25%) 94.6 -1.77 — — — — — — — — — — — — — — — —
30 2010 1598 112.4 -0.83 +1.60 0.867 47.8% — — — 33.3% -1.67 0–1 1–0 — -0.05 — — — — — — — — — — — — — — — —
31 2011 1664 121.9 -0.09 +1.05 0.929 48.7% +47 — — 47.1% +0.06 2–0 1–4 (20%) — -0.39 — — — — — — — — — — — — — — — —
32 2012 1606 112.1 -2.89 +0.24 0.845 46.8% — +54 — 50.0% -0.75 2–0 — — -0.23 — — — — — — — — — — — — — — — —
33 2013 1745 122.3 -0.81 -0.62 0.905 48.3% — — +148 45.8% -0.46 3–1 (75%) 3–2 (60%) 102.6 -0.30 — — — — — — — — — — — — — — — —
34 2014 1702 109.1 +1.00 -1.06 0.949 49.7% — — — 44.4% -0.33 1–0 0–1 — 0.00 — — — — — — — — — — — — — — — —
35 2015 1696 112.0 -2.26 -1.93 0.853 47.2% — — +192 50.0% -0.63 1–0 2–1 (67%) — +0.14 — — — — — — — — — — — — — — — —
36 2016 1641 101.2 +0.27 -3.38 0.789 45.9% — — — 33.3% -1.67 0–1 — — -0.02 — — — — — — — — — — — — — — — —
38 2018 1618 97.0 — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
Career — 1783 128.6 -1.68 +0.70 0.918 48.5% -12 -100 +78 41.9% -0.60 28–37 (43%) 32–37 (46%) 95.5 -2.56 — 1786 135.2 -2.21 +1.52 0.947 49.0% +19 +16 -37 44.4% -0.33 41–43 (49%) 33–44 (43%) 97.0 +0.06

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.