H2H data updated: 2026-09-03 00:00 UTC

Sjeng Schalken vs Ivo Heuberger H2H: 1-0

Sjeng Schalken holds a 1–0 lead over Ivo Heuberger in their ATP head-to-head. Across 1 main-draw meeting, Sjeng Schalken leads 1–0 on hard courts. Most recently, Sjeng Schalken won the 2001 Japan Open round of 16 6-2 6-2.

NED Age 49 Right-Handed 193 cm / 6'4"
H2H
1 0
1 main draw meetings
SUI Age 50 Right-Handed 188 cm / 6'2"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Sjeng Schalken #24 6-2 6-2 Ivo Heuberger #118 Match data Oct 5, 2001* R16 Japan Open ATP International Series Gold modern equivalent ATP 500 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
Sjeng Schalken #677 #11 1,790 1,928 280 254 52.4% 0 0 0 1 8 9
Ivo Heuberger #1,496 #102 398 1,638 33 72 31.4% 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 Sjeng Schalken Ivo Heuberger
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
17 1994 1–2 33.3% #148 1,501 0 0
18 1995 17–14 54.8% #69 1,645 0 1
19 1996 26–26 50.0% #65 1,687 0 2
20 1997 16–25 39.0% #59 1,633 0 3
21 1998 22–30 42.3% #66 1,598 0 3 1997 1–3 25.0% #188 1,494 0 0
22 1999 28–26 51.9% #44 1,744 0 4 1998 6–12 33.3% #143 1,516 0 0
23 2000 35–26 57.4% #22 1,823 0 5 1999 1–2 33.3% #221 1,501 0 0
24 2001 36–27 57.1% #26 1,837 0 6 2000 1–4 20.0% #222 1,447 0 0
25 2002 36–27 57.1% #20 1,839 0 7 2001 6–9 40.0% #112 1,597 0 0
26 2003 39–23 62.9% #18 1,822 0 9 2002 6–14 30.0% #127 1,609 0 0
27 2004 17–18 48.6% #57 1,698 0 9 2003 3–10 23.1% #155 1,515 0 0
28 2005 7–10 41.2% #230 1,663 0 9 2004 7–14 33.3% #124 1,588 0 0
29 2005 2–4 33.3% #214 1,526 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 Sjeng Schalken Ivo Heuberger
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 1994 0 1 1 0.0% 1 1 2 50.0%
18 1995 0 2 2 0.0% 14 8 22 63.6% 1 3 4 25.0% 2 1 3 66.7%
19 1996 10 10 20 50.0% 10 10 20 50.0% 1 3 4 25.0% 5 3 8 62.5%
20 1997 11 11 22 50.0% 3 6 9 33.3% 2 3 5 40.0% 0 5 5 0.0%
21 1998 11 15 26 42.3% 5 8 13 38.5% 2 3 5 40.0% 4 4 8 50.0% 1997 0 1 1 0.0% 0 1 1 0.0% 1 1 2 50.0%
22 1999 17 16 33 51.5% 3 5 8 37.5% 5 3 8 62.5% 3 2 5 60.0% 1998 4 8 12 33.3% 0 2 2 0.0% 2 2 4 50.0%
23 2000 28 17 45 62.2% 4 6 10 40.0% 3 3 6 50.0% 1999 1 2 3 33.3%
24 2001 21 15 36 58.3% 8 6 14 57.1% 4 3 7 57.1% 3 3 6 50.0% 2000 1 3 4 25.0% 0 1 1 0.0%
25 2002 12 16 28 42.9% 5 6 11 45.5% 12 2 14 85.7% 7 3 10 70.0% 2001 5 6 11 45.5% 0 1 1 0.0% 0 1 1 0.0% 1 1 2 50.0%
26 2003 23 13 36 63.9% 6 5 11 54.5% 10 2 12 83.3% 0 3 3 0.0% 2002 4 8 12 33.3% 0 3 3 0.0% 1 2 3 33.3% 1 1 2 50.0%
27 2004 11 12 23 47.8% 1 3 4 25.0% 5 3 8 62.5% 2003 3 6 9 33.3% 0 1 1 0.0% 0 2 2 0.0% 0 1 1 0.0%
28 2005 3 6 9 33.3% 2 2 4 50.0% 1 1 2 50.0% 1 1 2 50.0% 2004 2 6 8 25.0% 2 4 6 33.3% 1 1 2 50.0% 2 3 5 40.0%
29 2005 1 3 4 25.0% 1 1 2 50.0%
Career 147 133 280 52.5% 61 66 127 48.0% 47 30 77 61.0% 25 25 50 50.0% 21 43 64 32.8% 2 13 15 13.3% 4 8 12 33.3% 6 8 14 42.9%

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 466/534 of Sjeng Schalken's and 92/105 of Ivo Heuberger'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 Sjeng Schalken Ivo Heuberger
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%
17 1994 3/3 3.0 3.7 61.3% 70.8% 53.2% 74.5% 29.2% 64.2% 32.7% —/—
18 1995 29/31 4.6 4.3 60.7% 70.0% 46.7% 57.7% 43.2% 60.7% 38.9% —/—
19 1996 44/52 4.6 4.8 56.9% 70.5% 48.1% 62.4% 44.7% 60.7% 36.5% —/—
20 1997 33/41 4.2 4.4 58.4% 67.0% 50.3% 56.9% 42.2% 59.7% 35.9% —/—
21 1998 41/52 4.3 3.3 59.6% 69.6% 49.3% 59.2% 45.2% 61.2% 37.9% 1997 3/4 12.3 3.7 61.3% 70.1% 46.9% 62.1% 48.6% 61.0% 37.4%
22 1999 46/54 3.5 3.6 62.0% 69.6% 46.4% 53.6% 48.0% 60.6% 40.0% 1998 14/18 5.5 5.0 54.4% 69.1% 41.7% 65.0% 35.6% 56.7% 37.1%
23 2000 53/61 5.3 4.5 56.0% 72.1% 51.2% 57.8% 41.9% 62.7% 38.7% 1999 2/3 8.0 9.5 39.9% 73.3% 48.0% 51.6% 83.3% 58.2% 35.4%
24 2001 53/63 4.0 3.5 60.9% 70.2% 53.1% 54.8% 45.9% 63.4% 40.6% 2000 4/5 7.3 3.3 44.7% 74.4% 44.2% 56.4% 20.2% 57.7% 33.6%
25 2002 52/63 3.1 2.8 66.8% 69.0% 52.9% 53.7% 39.0% 63.6% 38.3% 2001 13/15 6.0 2.5 55.1% 72.0% 47.3% 47.1% 36.3% 60.9% 34.1%
26 2003 60/62 2.7 2.0 67.1% 69.2% 56.7% 56.1% 51.7% 64.7% 40.7% 2002 17/20 7.0 2.4 49.5% 70.7% 48.0% 53.4% 54.1% 59.3% 32.5%
27 2004 35/35 2.6 1.6 73.8% 65.8% 54.7% 55.7% 37.5% 62.8% 36.1% 2003 13/13 7.1 3.0 54.7% 75.3% 49.4% 47.2% 43.0% 63.0% 34.3%
28 2005 17/17 1.5 1.6 71.1% 61.8% 51.4% 55.1% 41.2% 58.8% 38.4% 2004 21/21 6.1 3.2 55.0% 71.2% 46.0% 62.4% 51.3% 59.2% 36.3%
29 —/— 2005 5/6 8.4 1.8 56.6% 75.3% 50.4% 69.3% 25.0% 64.0% 37.1%
Career 466/534 3.8 3.4 62.5% 69.2% 51.3% 56.7% 44.1% 62.1% 38.5% 92/105 6.7 3.3 53.4% 71.9% 46.6% 56.7% 44.0% 59.8% 35.1%

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 Sjeng Schalken Ivo Heuberger
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 1994 1502 103.3 +0.17 -1.45 0.912 48.2% 42.9% -0.57 0–1 +0.03
18 1995 1646 131.2 +0.48 -0.33 0.990 49.8% -114 +64 -77 50.0% -0.04 9–4 (69%) 6–3 (67%) +0.54
19 1996 1688 137.5 -0.72 -1.26 0.929 49.0% -25 +3 -110 50.4% -0.08 10–8 (56%) 6–13 (32%) +0.30
20 1997 1634 136.5 -1.45 -0.70 0.889 47.9% +9 +9 -55 43.8% -0.37 5–7 (42%) 8–10 (44%) -1.14
21 1998 1598 132.0 -0.55 +0.75 0.978 50.0% +23 +20 -38 44.9% -0.20 8–13 (38%) 12–11 (52%) +1.65 1997 1495 110.8 -0.34 -0.05 0.958 49.0% +40 33.3% -1.11 0–1 1–0 +0.09
22 1999 1745 148.3 -0.52 +2.39 1.015 50.3% -3 -76 -122 51.7% +0.08 8–12 (40%) 9–8 (53%) -2.44 1998 1517 123.2 -2.63 +0.15 0.858 47.3% +24 +121 42.5% -0.78 0–4 (0%) 2–1 (67%) -0.39
23 2000 1823 145.8 +1.00 +1.26 1.036 50.5% +28 -171 -172 55.8% +0.34 12–9 (57%) 9–6 (60%) +0.15 1999 1502 100.0 -0.07 -1.10 0.846 47.3% +25 28.6% -0.71 0–1 0–1 +0.45
24 2001 1838 142.0 +0.82 +2.43 1.108 51.7% -14 -117 -151 53.6% +0.32 14–11 (56%) 7–13 (35%) +1.67 2000 1448 106.4 -1.72 -0.96 0.794 46.2% +23 33.3% -0.58 0–2 1–2 (33%) +0.39
25 2002 1839 143.2 +1.06 +1.20 1.052 50.5% -32 -125 +41 55.2% +0.36 11–7 (61%) 17–18 (49%) +0.32 2001 1598 116.0 -0.81 -1.31 0.872 47.2% -11 35.3% -0.97 1–1 2–2 (50%) +0.07
26 2003 1822 140.9 +2.08 +3.20 1.152 52.4% -22 -111 +167 61.2% +0.65 6–6 (50%) 13–4 (76%) +1.00 2002 1609 126.6 -1.20 -2.63 0.799 46.2% +21 -193 -13 36.7% -1.04 3–4 (43%) 5–3 (63%) -0.83
27 2004 1698 129.8 -0.34 -0.21 0.972 49.3% -14 -22 +251 53.7% +0.41 4–3 (57%) 5–5 (50%) +1.66 2003 1515 111.5 -0.36 -1.37 0.927 48.9% +14 30.0% -1.17 1–1 0–5 (0%) +0.46
28 2005 1664 127.0 -2.29 +0.67 0.930 48.5% +5 +11 41.5% -0.51 3–3 (50%) 1–3 (25%) -1.00 2004 1588 124.4 -1.89 -0.40 0.889 48.4% -18 -149 39.6% -0.35 0–3 (0%) 1–3 (25%) +0.07
29 2005 1526 99.8 -0.58 +0.36 1.031 49.9% +7 36.4% -1.18 1–0 1–1 +0.74
30 2006 1504 100.0
32 2008 1488 97.2
Career 1928 144.9 +0.24 +1.08 1.018 50.3% -6 -38 +4 52.2% +0.15 90–84 (52%) 93–94 (50%) 100.6 +0.52 1638 121.5 -1.34 -0.98 0.874 47.7% +9 -164 +64 36.7% -0.84 6–17 (26%) 13–18 (42%) 87.9 +1.01

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.