H2H data updated: 2026-09-01 00:00 UTC

Nicolas Kiefer vs Daniel Vacek H2H: 4-1

Nicolas Kiefer holds a 4–1 lead over Daniel Vacek in their ATP head-to-head. Across 5 main-draw meetings, Nicolas Kiefer leads 3–1 on hard courts and 1–0 on grass. Most recently, Daniel Vacek won the 2001 Tashkent round of 32 7-5 6-4.

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Nicolas Kiefer
GER Age 49 Right-Handed 183 cm / 6'0"
H2H
4 – 1
5 main draw meetings
Daniel Vacek
CZE Age 55 Right-Handed 190 cm / 6'3"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Daniel Vacek #698 7-5 6-4 Nicolas Kiefer #40 Match data Sep 13, 2001* R32 Tashkent ATP International Series → modern equivalent ATP 250 Hard
Nicolas Kiefer #4 6-2 6-4 Daniel Vacek #44 Match data Feb 17, 2000* R32 ABN AMRO Open ATP International Series Gold → modern equivalent ATP 500 Hard
Nicolas Kiefer #13 7-6(4) 6-2 Daniel Vacek #70 Match data Sep 18, 1999* SF Tashkent ATP World Series → modern equivalent ATP 250 Hard
Nicolas Kiefer #17 6-2 7-5 Daniel Vacek #51 Match data Aug 4, 1999* R64 Canadian Open Masters 1000 Hard
Nicolas Kiefer #21 6-4 6-3 Daniel Vacek #77 Match data Jun 12, 1999* SF Halle Open ATP World Series → modern equivalent ATP 250 Grass

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
Nicolas Kiefer #720 #4 2,447 1,995 347 255 57.6% 0 0 0 1 5 6
Daniel Vacek #1,133 #26 1,151 1,821 171 220 43.7% 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 Nicolas Kiefer Daniel Vacek
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
16 1994 0–1 0.0% — 1,489 0 0 — — — — — — —
17 1995 3–3 50.0% #206 1,527 0 0 — — — — — — —
18 1996 7–9 43.8% #128 1,563 0 0 — — — — — — —
19 1997 26–16 61.9% #32 1,799 0 1 — — — — — — —
20 1998 31–25 55.4% #35 1,792 0 1 1991 1–3 25.0% #470 1,490 0 0
21 1999 53–21 71.6% #6 1,922 0 4 — — — — — — —
22 2000 30–16 65.2% #20 1,900 0 6 1993 13–22 37.1% #114 1,559 0 0
23 2001 26–25 51.0% #42 1,763 0 6 1994 25–27 48.1% #45 1,732 0 0
24 2002 19–24 44.2% #72 1,717 0 6 1995 30–31 49.2% #27 1,797 0 0
25 2003 19–17 52.8% #58 1,727 0 6 1996 23–29 44.2% #71 1,692 0 0
26 2004 34–20 63.0% #21 1,886 0 6 1997 19–26 42.2% #53 1,669 0 0
27 2005 31–22 58.5% #22 1,862 0 6 1998 25–29 46.3% #50 1,671 0 0
28 2006 14–8 63.6% #48 1,863 0 6 1999 29–31 48.3% #43 1,740 0 0
29 2007 19–12 61.3% #49 1,906 0 6 2000 4–13 23.5% #238 1,628 0 0
30 2008 22–17 56.4% #38 1,889 0 6 2001 2–7 22.2% #393 1,595 0 0
31 2009 12–16 42.9% #116 1,762 0 6 2002 0–2 0.0% #749 1,577 0 0
32 2010 1–3 25.0% #722 1,722 0 6 — — — — — — —

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 Nicolas Kiefer Daniel Vacek
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 %
16 1994 — — — — — — — — — — — — 0 1 1 0.0% — — — — — — — — — — — — — — — — —
17 1995 — — — — — — — — — — — — 3 3 6 50.0% — — — — — — — — — — — — — — — — —
18 1996 1 2 3 33.3% 3 4 7 42.9% 1 1 2 50.0% 2 2 4 50.0% — — — — — — — — — — — — — — — — —
19 1997 7 5 12 58.3% 3 4 7 42.9% 5 2 7 71.4% 11 5 16 68.8% — — — — — — — — — — — — — — — — —
20 1998 24 15 39 61.5% 4 4 8 50.0% 2 3 5 40.0% 1 3 4 25.0% 1991 0 2 2 0.0% 1 1 2 50.0% — — — — — — — —
21 1999 41 15 56 73.2% 2 2 4 50.0% 6 1 7 85.7% 4 3 7 57.1% — — — — — — — — — — — — — — — — —
22 2000 27 11 38 71.1% 1 3 4 25.0% 2 2 4 50.0% — — — — 1993 7 9 16 43.8% 4 6 10 40.0% 1 3 4 25.0% 1 4 5 20.0%
23 2001 11 13 24 45.8% 6 6 12 50.0% 4 2 6 66.7% 5 4 9 55.6% 1994 10 11 21 47.6% 3 6 9 33.3% 3 3 6 50.0% 9 7 16 56.3%
24 2002 10 15 25 40.0% 1 5 6 16.7% 7 3 10 70.0% 1 1 2 50.0% 1995 11 11 22 50.0% 4 7 11 36.4% 1 3 4 25.0% 14 10 24 58.3%
25 2003 14 11 25 56.0% 1 3 4 25.0% 4 3 7 57.1% — — — — 1996 10 11 21 47.6% 4 5 9 44.4% 3 3 6 50.0% 6 10 16 37.5%
26 2004 30 14 44 68.2% 2 4 6 33.3% 2 2 4 50.0% — — — — 1997 6 11 17 35.3% 2 5 7 28.6% 1 3 4 25.0% 10 7 17 58.8%
27 2005 15 13 28 53.6% 6 4 10 60.0% 2 2 4 50.0% 8 3 11 72.7% 1998 17 17 34 50.0% 3 2 5 60.0% 2 3 5 40.0% 3 7 10 30.0%
28 2006 8 4 12 66.7% 6 4 10 60.0% — — — — — — — — 1999 20 17 37 54.1% 1 6 7 14.3% 6 3 9 66.7% 2 5 7 28.6%
29 2007 17 9 26 65.4% — — — — 2 3 5 40.0% — — — — 2000 4 9 13 30.8% 0 4 4 0.0% — — — — — — — —
30 2008 12 11 23 52.2% 5 4 9 55.6% 5 2 7 71.4% — — — — 2001 2 5 7 28.6% — — — — 0 2 2 0.0% — — — —
31 2009 4 7 11 36.4% 7 7 14 50.0% 1 2 3 33.3% — — — — 2002 0 2 2 0.0% — — — — — — — — — — — —
32 2010 — — — — 0 1 1 0.0% 1 2 3 33.3% — — — — — — — — — — — — — — — — — — — — —
Career — 221 145 366 60.4% 47 55 102 46.1% 44 30 74 59.5% 35 25 60 58.3% — 87 105 192 45.3% 22 42 64 34.4% 17 23 40 42.5% 45 50 95 47.4%

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 537/601 of Nicolas Kiefer's and 346/391 of Daniel Vacek'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 Nicolas Kiefer Daniel Vacek
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 1995 6/6 4.7 2.3 61.5% 72.6% 51.3% 62.7% 44.1% 64.8% 36.3% — —/— — — — — — — — — —
18 1996 11/16 6.1 2.5 52.2% 76.6% 47.8% 53.2% 49.7% 62.7% 39.8% — —/— — — — — — — — — —
19 1997 37/42 7.9 3.5 55.2% 77.0% 48.3% 60.5% 52.5% 64.1% 36.7% — —/— — — — — — — — — —
20 1998 49/56 6.2 4.7 53.7% 74.8% 47.8% 55.1% 44.4% 62.5% 39.0% 1991 4/4 3.8 2.8 61.6% 71.4% 42.5% 43.4% 19.0% 59.1% 34.1%
21 1999 56/74 6.6 4.3 51.5% 75.7% 53.2% 61.8% 43.5% 64.7% 40.4% — —/— — — — — — — — — —
22 2000 38/46 6.4 4.3 52.7% 74.9% 52.3% 61.7% 48.3% 64.3% 40.1% 1993 32/35 6.8 4.4 60.0% 72.6% 54.6% 58.6% 34.4% 65.5% 31.8%
23 2001 44/51 6.3 4.1 50.3% 71.1% 48.8% 54.0% 50.7% 60.0% 40.0% 1994 49/52 7.0 5.4 59.5% 74.6% 50.5% 56.6% 36.0% 65.1% 34.7%
24 2002 40/43 6.2 4.5 52.6% 74.1% 47.8% 58.8% 50.7% 61.5% 37.6% 1995 50/61 8.1 4.3 59.9% 75.7% 51.4% 61.3% 37.4% 65.9% 35.7%
25 2003 36/36 6.5 3.8 50.8% 73.1% 49.9% 58.1% 44.7% 61.8% 37.4% 1996 48/52 7.3 5.1 56.7% 76.2% 49.0% 53.1% 39.3% 64.6% 33.5%
26 2004 51/54 7.3 3.8 54.9% 77.8% 48.4% 61.1% 41.4% 64.5% 38.7% 1997 41/45 8.2 6.8 51.8% 76.0% 46.0% 59.0% 36.2% 61.5% 34.9%
27 2005 52/53 7.6 3.8 53.4% 74.2% 51.4% 56.4% 51.3% 63.6% 40.9% 1998 46/54 7.0 5.1 56.6% 74.9% 47.3% 61.9% 39.4% 62.8% 35.5%
28 2006 21/22 7.4 4.0 51.7% 72.0% 50.1% 59.5% 43.3% 61.3% 40.2% 1999 50/60 4.7 4.6 56.5% 70.1% 47.7% 64.0% 37.1% 60.1% 36.2%
29 2007 30/31 6.7 2.5 57.0% 79.9% 51.6% 64.6% 33.9% 67.8% 38.1% 2000 15/17 4.2 5.4 53.6% 64.8% 40.6% 42.9% 30.9% 53.9% 30.4%
30 2008 34/39 7.2 2.4 53.6% 76.3% 51.9% 55.4% 44.9% 64.9% 39.6% 2001 9/9 6.8 3.4 54.2% 67.3% 50.2% 50.6% 27.2% 59.5% 29.2%
31 2009 28/28 7.7 3.9 52.0% 75.0% 47.3% 62.9% 45.8% 61.9% 35.4% 2002 2/2 5.0 2.5 58.4% 71.8% 37.5% 45.7% 36.5% 57.6% 36.6%
32 2010 4/4 11.3 6.5 51.8% 77.7% 47.3% 55.7% 31.0% 63.0% 28.6% — —/— — — — — — — — — —
Career — 537/602 6.9 3.8 53.1% 75.1% 49.9% 58.9% 46.0% 63.3% 38.9% — 346/391 6.8 5.0 57.1% 73.7% 48.8% 58.1% 36.5% 63.0% 34.4%

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 Nicolas Kiefer Daniel Vacek
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
16 1994 1489 97.0 — — — — — — — 0.0% -4.00 — — — +0.05 — — — — — — — — — — — — — — — —
17 1995 1528 117.0 +1.19 -1.22 1.032 51.3% +26 — — 50.0% 0.00 1–1 — — +0.08 — — — — — — — — — — — — — — — —
18 1996 1563 122.9 +0.33 +1.12 1.067 50.9% +8 -24 — 44.1% +0.09 0–1 2–3 (40%) — +0.80 — — — — — — — — — — — — — — — —
19 1997 1799 139.8 +1.52 -0.54 1.021 50.8% -25 -229 -48 55.6% +0.30 14–3 (82%) 8–7 (53%) — +0.64 — — — — — — — — — — — — — — — —
20 1998 1792 151.1 +0.77 +1.69 1.039 50.9% +29 -161 -60 55.6% +0.37 10–11 (48%) 12–8 (60%) — -0.30 1991 1490 102.2 -1.04 -0.09 0.834 46.2% — — — 22.2% -1.67 — 1–0 — +0.10
21 1999 1923 157.7 +2.57 +3.33 1.144 52.6% +23 -302 -126 65.4% +0.99 15–6 (71%) 16–8 (67%) — +0.49 — — — — — — — — — — — — — — — —
22 2000 1900 146.0 +2.09 +2.25 1.124 52.3% +54 -332 -120 61.3% +0.85 9–2 (82%) 7–6 (54%) — -0.03 1993 1560 126.4 +2.79 -4.51 0.922 49.1% -2 +9 -4 41.1% -0.61 3–7 (30%) 7–9 (44%) — +0.29
23 2001 1763 149.2 -1.17 +2.22 1.001 50.2% +25 -132 +43 53.5% +0.24 6–10 (38%) 7–5 (58%) — -2.55 1994 1732 143.4 +3.08 -2.24 0.992 49.9% -14 -131 -90 47.5% -0.12 12–9 (57%) 13–15 (46%) — -1.41
24 2002 1718 142.5 -0.77 +1.14 0.977 49.8% +5 -139 +119 46.5% -0.05 4–4 (50%) 4–7 (36%) — -0.90 1995 1798 148.9 +3.89 -1.17 1.046 50.7% +14 -171 -195 48.7% +0.03 10–11 (48%) 15–18 (45%) — -1.99
25 2003 1727 134.5 +0.10 +0.13 0.980 49.8% +22 -144 +93 48.1% -0.22 6–1 (86%) 3–3 (50%) — +0.36 1996 1692 140.7 +2.32 -3.52 0.945 49.3% +10 -77 -50 45.5% -0.25 12–11 (52%) 14–11 (56%) — -2.02
26 2004 1887 148.7 +1.38 +2.62 1.092 51.5% +33 -284 -100 60.2% +0.52 12–6 (67%) 14–7 (67%) — +0.23 1997 1670 134.8 -0.60 -1.91 0.906 48.1% +38 -50 -60 41.8% -0.61 6–7 (46%) 13–12 (52%) — -0.33
27 2005 1862 154.9 +1.31 +3.44 1.125 52.2% +10 -139 -50 60.9% +0.77 8–8 (50%) 7–5 (58%) — -1.12 1998 1672 143.3 +0.67 -1.11 0.956 49.4% +16 -20 -40 48.1% -0.21 6–8 (43%) 13–10 (57%) — +0.31
28 2006 1863 140.5 -0.75 +2.34 1.039 50.6% +65 -104 — 60.0% +0.60 8–3 (73%) 7–4 (64%) — +0.78 1999 1741 133.9 -1.09 -1.27 0.909 48.6% +1 -191 -65 46.2% -0.17 9–4 (69%) 7–11 (39%) — +0.89
29 2007 1907 153.1 +4.21 +1.95 1.186 52.7% +55 — -153 65.2% +0.94 1–1 8–5 (62%) — -1.12 2000 1629 122.6 -4.37 -4.38 0.659 42.4% +53 -125 — 27.5% -2.08 1–2 (33%) 4–1 (80%) — -1.16
30 2008 1889 153.4 +2.15 +3.22 1.128 51.9% +5 -79 -37 57.0% +0.37 7–5 (58%) 7–4 (64%) — -1.13 2001 1595 122.1 -0.70 -2.81 0.721 45.3% +49 — — 23.8% -1.67 — 1–2 (33%) — -0.96
31 2009 1762 145.0 -1.02 -0.24 0.930 49.3% +63 +45 +54 48.5% -0.09 4–4 (50%) 5–4 (56%) — -1.73 2002 1578 111.7 +0.38 -0.21 0.865 46.5% — — — 16.7% -1.17 — 0–2 — -0.38
32 2010 1722 106.1 +0.99 -2.77 0.774 46.3% — — +51 27.3% -1.09 1–1 0–1 — -0.60 — — — — — — — — — — — — — — — —
Career — 1995 155.1 +1.02 +1.86 1.060 51.2% +25 -127 -17 56.7% +0.45 106–67 (61%) 107–77 (58%) 111.9 -1.01 — 1822 143.7 +1.22 -2.21 0.930 48.9% +12 -96 -70 44.3% -0.37 59–59 (50%) 88–91 (49%) 102.9 -1.71

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.