H2H data updated: 2026-09-05 00:00 UTC

Julian Knowle vs Marcos Ondruska

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

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

Julian Knowle
AUT Age 52 Left-Handed 188 cm / 6'2"
H2H
0 – 0
0 main draw meetings
Marcos Ondruska
RSA Age 53 Right-Handed 183 cm / 6'0"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Julian Knowle #145 6-2 6-2 Marcos Ondruska #177 Match data Aug 27, 2001 Q1 Q US Open Grand Slam Hard

1 qualifying meeting shown in the table; qualifying is excluded from the H2H score. 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
Julian Knowle #948 #86 455 1,552 9 33 21.4% 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 Julian Knowle Marcos Ondruska
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
17 — — — — — — — 1990 3–3 50.0% #256 1,537 0 0
18 1992 0–1 0.0% #661 1,488 0 0 1991 3–5 37.5% #137 1,589 0 0
19 1993 0–1 0.0% #347 1,474 0 0 1992 11–10 52.4% #67 1,640 0 0
20 1994 0–1 0.0% #534 1,458 0 0 1993 26–29 47.3% #47 1,568 0 0
21 — — — — — — — 1994 15–17 46.9% #98 1,686 0 0
22 — — — — — — — 1995 16–19 45.7% #114 1,665 0 0
23 — — — — — — — 1996 17–20 45.9% #102 1,675 0 0
24 — — — — — — — 1997 12–16 42.9% #113 1,656 0 0
25 — — — — — — — 1998 2–10 16.7% #142 1,541 0 0
26 — — — — — — — 1999 0–2 0.0% #159 1,520 0 0
27 2001 0–2 0.0% #134 1,522 0 0 2000 0–5 0.0% #204 1,477 0 0
28 2002 4–14 22.2% #121 1,480 0 0 2001 1–2 33.3% #263 1,569 0 0
29 2003 2–6 25.0% #164 1,445 0 0 — — — — — — —
30 2004 3–6 33.3% #257 1,519 0 0 — — — — — — —
31 2005 0–1 0.0% #636 1,499 0 0 — — — — — — —
38 2012 0–1 0.0% #892 1,523 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 Julian Knowle 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 1992 — — — — 0 1 1 0.0% — — — — — — — — 1991 1 3 4 25.0% 2 1 3 66.7% — — — — 0 1 1 0.0%
19 1993 — — — — 0 1 1 0.0% — — — — — — — — 1992 7 7 14 50.0% 4 1 5 80.0% 0 2 2 0.0% — — — —
20 1994 — — — — 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 — — — — — — — — — — — — — — — — — 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 — — — — — — — — — — — — — — — — — 1997 6 10 16 37.5% 4 3 7 57.1% 1 2 3 33.3% 1 1 2 50.0%
25 — — — — — — — — — — — — — — — — — 1998 2 7 9 22.2% 0 1 1 0.0% — — — — 0 2 2 0.0%
26 — — — — — — — — — — — — — — — — — 1999 0 1 1 0.0% 0 1 1 0.0% — — — — — — — —
27 2001 0 1 1 0.0% — — — — 0 1 1 0.0% — — — — 2000 0 4 4 0.0% — — — — 0 1 1 0.0% — — — —
28 2002 1 5 6 16.7% 0 5 5 0.0% 3 4 7 42.9% — — — — 2001 0 1 1 0.0% 1 1 2 50.0% — — — — — — — —
29 2003 1 2 3 33.3% 0 2 2 0.0% 1 2 3 33.3% — — — — — — — — — — — — — — — — — — — — —
30 2004 1 3 4 25.0% 2 2 4 50.0% 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — —
31 2005 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
38 2012 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
Career — 3 13 16 18.8% 2 12 14 14.3% 4 8 12 33.3% — — — — — 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 37/41 of Julian Knowle'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 Julian Knowle 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 1993 1/1 3.0 8.0 55.4% 53.7% 45.5% 60.0% 12.5% 50.0% 36.8% 1992 18/21 1.6 2.1 63.0% 62.9% 49.3% 50.1% 45.0% 57.6% 45.0%
20 1994 1/1 3.0 1.0 50.8% 53.1% 41.9% 28.6% 40.0% 47.6% 37.0% 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 — —/— — — — — — — — — — 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 — —/— — — — — — — — — — 1997 24/28 3.5 4.5 56.5% 66.3% 44.2% 53.2% 41.3% 56.8% 36.8%
25 — —/— — — — — — — — — — 1998 8/12 3.0 3.4 59.1% 63.2% 40.3% 66.6% 47.6% 53.8% 34.1%
26 — —/— — — — — — — — — — 1999 2/2 1.5 6.5 59.5% 59.5% 38.3% 55.0% 21.4% 51.9% 34.5%
27 2001 2/2 6.0 13.5 60.6% 67.2% 36.1% 58.6% 28.2% 54.9% 38.9% 2000 3/5 4.0 5.7 59.6% 66.5% 39.8% 49.2% 20.0% 56.0% 31.2%
28 2002 14/18 4.1 7.4 54.3% 67.4% 41.1% 58.3% 39.0% 55.6% 34.1% 2001 2/3 4.0 8.0 58.1% 67.0% 49.1% 53.5% 35.8% 59.5% 36.8%
29 2003 8/8 1.6 5.0 54.9% 70.3% 44.2% 43.7% 42.8% 58.4% 32.7% — —/— — — — — — — — — —
30 2004 9/9 2.9 5.0 61.2% 65.7% 47.2% 55.8% 35.6% 58.5% 37.1% — —/— — — — — — — — — —
31 2005 1/1 4.0 3.0 61.4% 72.1% 51.9% 50.0% 100.0% 64.3% 21.7% — —/— — — — — — — — — —
38 2012 1/1 6.0 0.0 69.6% 59.0% 29.4% 42.9% 50.0% 50.0% 26.1% — —/— — — — — — — — — —
Career — 37/42 3.4 6.1 57.0% 66.7% 43.1% 53.2% 39.7% 56.6% 34.4% — 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 are precomputed from eligible main-draw results; point-stat values use the available detailed sample. 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 Julian Knowle 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 1992 1488 99.5 — — — — — — — 33.3% -0.33 0–1 0–1 — -0.06 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 1993 1475 98.5 -2.13 -0.61 0.735 43.7% — — — 0.0% -2.50 — — — -0.05 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 1994 1459 96.5 -1.49 -3.51 0.707 42.7% — — — 0.0% -3.50 — — — +0.09 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 — — — — — — — — — — — — — — — — 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 — — — — — — — — — — — — — — — — 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 — — — — — — — — — — — — — — — — 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 — — — — — — — — — — — — — — — — 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 — — — — — — — — — — — — — — — — 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 2000 1465 103.0 — — — — — — — — — — — — — 1999 1520 102.7 -1.06 +2.09 0.716 43.6% — — — 0.0% -2.80 — — — -0.12
27 2001 1523 109.5 -1.41 +1.80 0.863 46.6% — — — 25.0% -1.75 — — — -0.07 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 2002 1480 101.9 -4.32 -2.26 0.768 45.0% +5 -109 +141 31.1% -1.27 2–3 (40%) 1–4 (20%) 95.6 -0.12 2001 1569 114.2 -1.90 +4.79 0.909 48.2% — — — 33.3% -1.83 1–0 1–1 — -0.37
29 2003 1445 96.5 -1.71 -3.80 0.786 46.1% +49 — +120 38.9% -0.89 0–2 — — +0.53 — — — — — — — — — — — — — — — —
30 2004 1519 117.6 -1.78 -0.14 0.895 48.0% -24 -116 — 39.1% -0.57 1–2 (33%) — — -0.14 — — — — — — — — — — — — — — — —
31 2005 1500 101.8 +0.54 -0.30 0.607 44.6% — — — 0.0% -1.50 — 0–1 — -0.20 — — — — — — — — — — — — — — — —
33 2007 1484 100.3 — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
35 2009 1500 100.7 — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
38 2012 1523 102.8 +0.26 -3.01 0.522 39.2% — — — 0.0% -3.50 — — — -0.02 — — — — — — — — — — — — — — — —
Career — 1552 107.2 -2.59 -1.81 0.792 45.8% +6 -112 +135 31.7% -1.15 3–8 (27%) 1–6 (14%) 92.0 -0.10 — 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.