H2H data updated: 2026-09-12 00:00 UTC

Kristof Vliegen vs Stefan Koubek H2H: 1-1

Kristof Vliegen and Stefan Koubek are tied 1–1 in their ATP head-to-head. Across 2 main-draw meetings, they are tied 1–1 on clay. Most recently, Stefan Koubek won the 2007 Sopot round of 16 6-2 3-6 6-4.

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Kristof Vliegen
BEL Age 44 Right-Handed 193 cm / 6'4"
H2H
1 – 1
2 main-draw meetings
Stefan Koubek
AUT Age 49 Left-Handed 175 cm / 5'9"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Stefan Koubek #68 6-2 3-6 6-4 Kristof Vliegen #75 Match data Aug 3, 2007* R16 Sopot International Series → modern equivalent ATP 250 Clay
Kristof Vliegen #136 6-4 6-2 Stefan Koubek #89 Match data Apr 28, 2004* R64 Barcelona Open International Series Gold → modern equivalent ATP 500 Clay

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
Kristof Vliegen #452 #30 1,008 1,797 83 114 42.1% 0 0 0 0 0 0
Stefan Koubek #906 #20 1,143 1,796 195 235 45.3% 0 0 0 0 3 3

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 Kristof Vliegen Stefan Koubek
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
17 — — — — — — — 1994 0–1 0.0% #1219 1,485 0 0
19 — — — — — — — 1996 1–2 33.3% #311 1,482 0 0
20 — — — — — — — 1997 4–2 66.7% #125 1,543 0 0
21 2003 5–8 38.5% #116 1,504 0 0 1998 2–4 33.3% #93 1,533 0 0
22 2004 9–14 39.1% #116 1,561 0 0 1999 29–25 53.7% #46 1,681 0 1
23 2005 7–9 43.8% #93 1,595 0 0 2000 26–27 49.1% #54 1,625 0 2
24 2006 31–22 58.5% #31 1,725 0 0 2001 20–22 47.6% #63 1,697 0 2
25 2007 13–23 36.1% #98 1,631 0 0 2002 18–31 36.7% #54 1,578 0 2
26 2008 7–16 30.4% #84 1,633 0 0 2003 19–24 44.2% #53 1,648 0 3
27 2009 9–12 42.9% #110 1,698 0 0 2004 22–24 47.8% #60 1,757 0 3
28 2010 2–10 16.7% #257 1,599 0 0 2005 6–15 28.6% #182 1,570 0 3
29 — — — — — — — 2006 14–9 60.9% #80 1,693 0 3
30 — — — — — — — 2007 22–26 45.8% #47 1,762 0 3
31 — — — — — — — 2008 3–6 33.3% #192 1,704 0 3
32 — — — — — — — 2009 6–11 35.3% #135 1,638 0 3
33 — — — — — — — 2010 3–5 37.5% #131 1,632 0 3
34 — — — — — — — 2011 0–1 0.0% #647 1,602 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 Kristof Vliegen Stefan Koubek
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% — — — — — — — —
19 — — — — — — — — — — — — — — — — — 1996 — — — — 1 2 3 33.3% — — — — — — — —
20 — — — — — — — — — — — — — — — — — 1997 1 1 2 50.0% 3 1 4 75.0% — — — — — — — —
21 2003 4 4 8 50.0% 1 4 5 20.0% — — — — — — — — 1998 0 2 2 0.0% 2 2 4 50.0% — — — — — — — —
22 2004 1 5 6 16.7% 8 7 15 53.3% 0 2 2 0.0% — — — — 1999 2 7 9 22.2% 25 13 38 65.8% 0 1 1 0.0% 2 4 6 33.3%
23 2005 2 2 4 50.0% 2 4 6 33.3% 0 1 1 0.0% 3 2 5 60.0% 2000 18 14 32 56.3% 7 10 17 41.2% 1 2 3 33.3% 0 1 1 0.0%
24 2006 18 12 30 60.0% 7 6 13 53.8% 5 3 8 62.5% 1 1 2 50.0% 2001 12 13 25 48.0% 8 7 15 53.3% 0 2 2 0.0% — — — —
25 2007 4 11 15 26.7% 7 7 14 50.0% 2 3 5 40.0% 0 2 2 0.0% 2002 8 17 25 32.0% 7 9 16 43.8% 3 3 6 50.0% 0 2 2 0.0%
26 2008 4 6 10 40.0% 3 7 10 30.0% 0 3 3 0.0% — — — — 2003 9 11 20 45.0% 6 9 15 40.0% 2 3 5 40.0% 2 1 3 66.7%
27 2009 3 4 7 42.9% 3 5 8 37.5% 3 3 6 50.0% — — — — 2004 8 10 18 44.4% 10 11 21 47.6% 1 2 3 33.3% 3 1 4 75.0%
28 2010 2 6 8 25.0% 0 2 2 0.0% 0 2 2 0.0% — — — — 2005 3 7 10 30.0% 3 7 10 30.0% 0 1 1 0.0% — — — —
29 — — — — — — — — — — — — — — — — — 2006 6 4 10 60.0% 4 4 8 50.0% — — — — 4 1 5 80.0%
30 — — — — — — — — — — — — — — — — — 2007 15 15 30 50.0% 6 8 14 42.9% 0 2 2 0.0% 1 1 2 50.0%
31 — — — — — — — — — — — — — — — — — 2008 3 6 9 33.3% — — — — — — — — — — — —
32 — — — — — — — — — — — — — — — — — 2009 4 5 9 44.4% 1 4 5 20.0% 1 2 3 33.3% — — — —
33 — — — — — — — — — — — — — — — — — 2010 3 3 6 50.0% 0 1 1 0.0% 0 1 1 0.0% — — — —
34 — — — — — — — — — — — — — — — — — 2011 0 1 1 0.0% — — — — — — — — — — — —
Career — 38 50 88 43.2% 31 42 73 42.5% 10 17 27 37.0% 4 5 9 44.4% — 92 116 208 44.2% 83 89 172 48.3% 8 19 27 29.6% 12 11 23 52.2%

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 196/197 of Kristof Vliegen's and 390/430 of Stefan Koubek'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 Kristof Vliegen Stefan Koubek
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 1/1 0.0 1.0 76.1% 45.7% 18.2% 0.0% 28.6% 39.1% 37.7%
19 — —/— — — — — — — — — — 1996 3/3 1.0 3.7 66.3% 48.8% 38.8% 48.3% 43.4% 45.6% 39.8%
20 — —/— — — — — — — — — — 1997 5/6 3.2 3.2 61.8% 61.8% 57.4% 46.6% 51.3% 60.1% 47.7%
21 2003 13/13 4.5 1.8 63.5% 68.3% 48.1% 48.7% 46.7% 60.5% 34.2% 1998 6/6 2.8 3.0 61.9% 64.4% 44.5% 49.8% 42.8% 56.9% 37.5%
22 2004 23/23 4.0 3.0 60.1% 66.0% 51.5% 44.3% 48.6% 60.0% 38.9% 1999 46/54 2.6 2.3 58.6% 66.4% 52.1% 56.8% 40.4% 60.8% 39.5%
23 2005 16/16 4.4 2.2 62.5% 66.3% 53.7% 59.1% 45.2% 61.6% 33.2% 2000 38/53 4.2 3.9 59.6% 67.7% 49.6% 52.4% 40.4% 60.2% 37.0%
24 2006 53/53 7.2 2.2 63.9% 72.1% 52.0% 62.7% 41.7% 65.0% 37.5% 2001 38/42 3.5 3.4 58.2% 66.1% 50.6% 58.1% 43.5% 59.4% 36.3%
25 2007 36/36 4.7 1.9 60.4% 67.3% 45.8% 53.4% 45.7% 59.0% 34.8% 2002 39/49 3.5 3.7 58.9% 65.2% 48.6% 48.7% 40.1% 58.3% 37.2%
26 2008 22/23 6.9 1.8 60.4% 66.4% 48.7% 56.3% 32.2% 59.5% 35.1% 2003 43/43 2.7 2.8 60.0% 65.0% 51.0% 58.8% 39.9% 59.5% 38.5%
27 2009 21/21 7.1 2.5 59.1% 71.7% 54.1% 51.0% 38.3% 64.5% 34.0% 2004 45/46 3.6 3.0 63.1% 65.9% 50.1% 55.2% 39.2% 60.1% 37.6%
28 2010 12/12 3.7 2.6 56.0% 63.6% 42.0% 35.3% 35.6% 54.5% 34.0% 2005 21/21 4.3 3.7 60.1% 63.6% 48.3% 56.0% 42.7% 57.4% 36.9%
29 — —/— — — — — — — — — — 2006 22/23 3.5 3.3 55.8% 68.2% 51.8% 58.7% 40.8% 60.7% 39.0%
30 — —/— — — — — — — — — — 2007 48/48 4.0 2.7 59.2% 67.9% 52.4% 56.6% 46.6% 61.4% 37.4%
31 — —/— — — — — — — — — — 2008 9/9 4.6 3.6 58.6% 65.0% 42.6% 46.4% 40.7% 55.7% 34.1%
32 — —/— — — — — — — — — — 2009 17/17 3.8 3.1 54.3% 70.4% 50.5% 42.5% 38.1% 60.9% 36.2%
33 — —/— — — — — — — — — — 2010 8/8 4.8 3.3 60.6% 61.5% 48.0% 42.1% 41.7% 56.6% 37.6%
34 — —/— — — — — — — — — — 2011 1/1 0.0 2.0 74.0% 51.4% 30.8% 16.7% 100.0% 46.0% 30.2%
Career — 196/197 5.7 2.2 61.3% 68.6% 49.9% 54.0% 42.1% 61.4% 35.8% — 390/430 3.5 3.1 59.5% 66.0% 50.2% 54.1% 41.6% 59.6% 37.7%

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 Kristof Vliegen Stefan Koubek
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 1485 97.3 +0.16 -0.91 0.620 38.4% — — — 0.0% -3.50 — — — +0.13
19 — — — — — — — — — — — — — — — — 1996 1482 96.6 -2.52 -2.52 0.731 43.0% — +24 — 28.6% -1.86 1–0 — — +0.08
20 — — — — — — — — — — — — — — — — 1997 1543 118.6 -0.10 +1.82 1.193 53.2% — +48 — 62.5% +1.00 2–2 (50%) 1–1 — +0.15
21 2003 1504 125.2 -0.35 -2.30 0.867 47.4% +66 +6 — 40.0% -0.50 3–1 (75%) 1–2 (33%) 104.0 -0.50 1998 1533 108.9 -0.90 -0.95 0.869 47.6% — +69 — 33.3% -0.80 2–1 (67%) 2–1 (67%) — +0.21
22 2004 1561 127.0 -0.78 +1.34 0.973 49.4% +12 +56 — 41.5% -0.68 2–2 (50%) 2–1 (67%) 102.2 -1.10 1999 1681 136.8 -0.61 +1.04 1.009 50.2% -157 +114 — 51.6% +0.05 5–5 (50%) 7–7 (50%) 100.7 -0.19
23 2005 1595 119.4 -0.47 -2.09 0.864 47.7% -16 +57 — 42.5% -0.77 4–2 (67%) 6–2 (75%) 105.9 +0.06 2000 1625 128.0 -1.07 -0.50 0.930 48.8% +9 +46 -98 48.5% -0.25 9–8 (53%) 10–10 (50%) 102.0 +1.65
24 2006 1726 141.1 +2.41 +0.32 1.071 51.0% +9 -51 -188 56.7% +0.42 11–9 (55%) 12–9 (57%) 105.0 +1.58 2001 1698 130.5 -1.96 -0.75 0.896 48.3% -36 -2 — 45.3% -0.31 9–7 (56%) 9–4 (69%) 107.7 -0.37
25 2007 1631 132.3 -2.09 -0.92 0.850 47.4% -33 +55 -113 39.3% -0.93 4–8 (33%) 8–7 (53%) 97.0 -2.52 2002 1578 131.6 -3.16 -0.15 0.892 47.7% -9 +101 -81 40.5% -0.74 5–8 (38%) 12–7 (63%) 102.3 -0.55
26 2008 1634 124.6 -2.29 -1.39 0.865 47.5% +1 +33 -168 39.6% -0.52 0–3 (0%) 6–6 (50%) 98.3 -0.28 2003 1648 134.0 -1.86 +1.04 0.952 49.2% -22 0 -152 46.3% -0.27 4–8 (33%) 9–2 (82%) 102.4 -1.35
27 2009 1699 126.8 +0.44 -1.10 0.959 48.8% -65 -33 -80 43.1% -0.41 5–4 (56%) 8–6 (57%) 103.4 -0.27 2004 1757 132.2 -2.49 +0.57 0.941 48.8% -16 -76 -256 45.5% -0.22 11–2 (85%) 9–7 (56%) 114.2 -1.10
28 2010 1600 104.2 -5.09 -1.86 0.748 44.5% -21 — — 16.7% -2.20 1–2 (33%) 1–2 (33%) 97.6 +0.19 2005 1570 110.6 -3.42 -1.33 0.865 47.6% +70 +14 — 35.8% -0.96 1–6 (14%) 3–4 (43%) 94.3 +0.80
29 — — — — — — — — — — — — — — — — 2006 1694 126.5 -1.41 +1.06 0.991 49.7% +45 -95 — 51.7% -0.05 9–2 (82%) 6–2 (75%) 112.1 +0.80
30 — — — — — — — — — — — — — — — — 2007 1763 141.7 -1.17 +0.49 0.969 49.6% +25 -117 — 47.8% -0.16 8–9 (47%) 9–7 (56%) 103.2 -0.82
31 — — — — — — — — — — — — — — — — 2008 1704 118.9 -4.34 -0.28 0.769 45.0% +16 — — 42.3% -0.69 1–2 (33%) 4–2 (67%) 99.7 -0.40
32 — — — — — — — — — — — — — — — — 2009 1639 122.2 -1.09 -0.53 0.926 48.9% +44 -39 -164 41.3% -0.28 1–3 (25%) 1–6 (14%) 93.5 -0.24
33 — — — — — — — — — — — — — — — — 2010 1633 125.7 -2.71 +0.54 0.867 46.8% +123 — — 47.6% +0.09 1–1 2–3 (40%) — +0.03
34 — — — — — — — — — — — — — — — — 2011 1603 113.9 -0.31 -0.24 0.560 38.7% — — — 0.0% -3.50 — — — -0.19
Career — 1798 134.3 -0.41 -0.64 0.927 48.6% -4 +20 -139 43.8% -0.46 30–31 (49%) 44–35 (56%) 106.7 -1.45 — 1796 135.7 -1.82 +0.18 0.932 48.8% -3 +19 -140 45.7% -0.31 69–64 (52%) 84–63 (57%) 111.6 -0.32

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.