H2H data updated: 2026-09-02 00:00 UTC

Jan-Michael Gambill vs Daniel Vacek H2H: 1-1

Jan-Michael Gambill and Daniel Vacek are tied 1–1 in their ATP head-to-head. Across 2 main-draw meetings, Daniel Vacek leads 1–0 on clay, while Jan-Michael Gambill leads 1–0 on hard courts. Most recently, Jan-Michael Gambill won the 1998 Stuttgart Masters round of 64 6-3 4-6 6-3.

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Jan-Michael Gambill
USA Age 49 Right-Handed 190 cm / 6'3"
H2H
1 – 1
2 main draw meetings
Daniel Vacek
CZE Age 55 Right-Handed 190 cm / 6'3"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Jan-Michael Gambill #49 6-3 4-6 6-3 Daniel Vacek #41 Match data Oct 28, 1998* R64 Stuttgart Masters Masters 1000 Hard
Daniel Vacek #77 6-4 2-6 7-5 7-6(0) Jan-Michael Gambill #66 Match data May 29, 1998* R64 Roland Garros Grand Slam 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
Jan-Michael Gambill #1,352 #14 1,655 1,949 201 191 51.3% 0 0 0 0 3 3
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 Jan-Michael Gambill Daniel Vacek
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
18 1995 0–1 0.0% — 1,487 0 0 — — — — — — —
20 1997 3–5 37.5% #186 1,520 0 0 1991 1–3 25.0% #470 1,490 0 0
21 1998 31–23 57.4% #38 1,754 0 0 — — — — — — —
22 1999 25–25 50.0% #58 1,762 0 1 1993 13–22 37.1% #114 1,559 0 0
23 2000 33–26 55.9% #33 1,818 0 1 1994 25–27 48.1% #45 1,732 0 0
24 2001 35–22 61.4% #21 1,759 0 2 1995 30–31 49.2% #27 1,797 0 0
25 2002 28–26 51.9% #42 1,756 0 2 1996 23–29 44.2% #71 1,692 0 0
26 2003 22–25 46.8% #51 1,643 0 3 1997 19–26 42.2% #53 1,669 0 0
27 2004 18–25 41.9% #95 1,595 0 3 1998 25–29 46.3% #50 1,671 0 0
28 2005 5–10 33.3% #191 1,558 0 3 1999 29–31 48.3% #43 1,740 0 0
29 2006 1–1 50.0% #687 1,568 0 3 2000 4–13 23.5% #238 1,628 0 0
30 2007 0–2 0.0% #1107 1,504 0 3 2001 2–7 22.2% #393 1,595 0 0
31 — — — — — — — 2002 0–2 0.0% #749 1,577 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-Michael Gambill 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 %
18 1995 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
20 1997 3 4 7 42.9% 0 1 1 0.0% — — — — — — — — 1991 0 2 2 0.0% 1 1 2 50.0% — — — — — — — —
21 1998 23 13 36 63.9% 3 4 7 42.9% 2 3 5 40.0% 3 3 6 50.0% — — — — — — — — — — — — — — — — —
22 1999 20 15 35 57.1% 1 5 6 16.7% 3 3 6 50.0% 1 2 3 33.3% 1993 7 9 16 43.8% 4 6 10 40.0% 1 3 4 25.0% 1 4 5 20.0%
23 2000 20 17 37 54.1% 3 4 7 42.9% 8 3 11 72.7% 2 2 4 50.0% 1994 10 11 21 47.6% 3 6 9 33.3% 3 3 6 50.0% 9 7 16 56.3%
24 2001 29 13 42 69.0% 2 4 6 33.3% 2 3 5 40.0% 2 2 4 50.0% 1995 11 11 22 50.0% 4 7 11 36.4% 1 3 4 25.0% 14 10 24 58.3%
25 2002 24 16 40 60.0% 1 5 6 16.7% 3 2 5 60.0% 0 3 3 0.0% 1996 10 11 21 47.6% 4 5 9 44.4% 3 3 6 50.0% 6 10 16 37.5%
26 2003 20 17 37 54.1% 0 5 5 0.0% 2 3 5 40.0% — — — — 1997 6 11 17 35.3% 2 5 7 28.6% 1 3 4 25.0% 10 7 17 58.8%
27 2004 15 18 33 45.5% 0 3 3 0.0% 3 4 7 42.9% — — — — 1998 17 17 34 50.0% 3 2 5 60.0% 2 3 5 40.0% 3 7 10 30.0%
28 2005 5 10 15 33.3% — — — — — — — — — — — — 1999 20 17 37 54.1% 1 6 7 14.3% 6 3 9 66.7% 2 5 7 28.6%
29 2006 1 1 2 50.0% — — — — — — — — — — — — 2000 4 9 13 30.8% 0 4 4 0.0% — — — — — — — —
30 2007 0 1 1 0.0% 0 1 1 0.0% — — — — — — — — 2001 2 5 7 28.6% — — — — 0 2 2 0.0% — — — —
31 — — — — — — — — — — — — — — — — — 2002 0 2 2 0.0% — — — — — — — — — — — —
Career — 160 126 286 55.9% 10 32 42 23.8% 23 21 44 52.3% 8 12 20 40.0% — 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 105/109 of Jan-Michael Gambill'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 Jan-Michael Gambill 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%
20 — —/— — — — — — — — — — 1991 4/4 3.8 2.8 61.6% 71.4% 42.5% 43.4% 19.0% 59.1% 34.1%
22 — —/— — — — — — — — — — 1993 32/35 6.8 4.4 60.0% 72.6% 54.6% 58.6% 34.4% 65.5% 31.8%
23 — —/— — — — — — — — — — 1994 49/52 7.0 5.4 59.5% 74.6% 50.5% 56.6% 36.0% 65.1% 34.7%
24 — —/— — — — — — — — — — 1995 50/61 8.1 4.3 59.9% 75.7% 51.4% 61.3% 37.4% 65.9% 35.7%
25 — —/— — — — — — — — — — 1996 48/52 7.3 5.1 56.7% 76.2% 49.0% 53.1% 39.3% 64.6% 33.5%
26 2003 43/47 10.1 3.1 56.5% 75.0% 47.9% 60.7% 48.3% 63.4% 36.0% 1997 41/45 8.2 6.8 51.8% 76.0% 46.0% 59.0% 36.2% 61.5% 34.9%
27 2004 43/43 11.7 3.1 59.1% 76.0% 47.7% 57.9% 38.7% 64.3% 34.3% 1998 46/54 7.0 5.1 56.6% 74.9% 47.3% 61.9% 39.4% 62.8% 35.5%
28 2005 15/15 12.3 3.9 56.6% 76.7% 45.9% 58.6% 27.7% 63.3% 32.1% 1999 50/60 4.7 4.6 56.5% 70.1% 47.7% 64.0% 37.1% 60.1% 36.2%
29 2006 2/2 11.5 7.0 47.8% 73.2% 44.1% 59.7% 35.0% 57.0% 39.4% 2000 15/17 4.2 5.4 53.6% 64.8% 40.6% 42.9% 30.9% 53.9% 30.4%
30 2007 2/2 9.5 5.5 58.7% 79.4% 39.2% 37.5% 20.8% 62.8% 26.7% 2001 9/9 6.8 3.4 54.2% 67.3% 50.2% 50.6% 27.2% 59.5% 29.2%
31 — —/— — — — — — — — — — 2002 2/2 5.0 2.5 58.4% 71.8% 37.5% 45.7% 36.5% 57.6% 36.6%

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 Jan-Michael Gambill 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
18 1995 1487 99.7 — — — — — — — 0.0% -3.00 — — — +0.04 — — — — — — — — — — — — — — — —
20 1997 1520 116.3 — — — — +18 — — 33.3% -1.17 1–0 3–1 (75%) — -0.59 1991 1490 102.2 -1.04 -0.09 0.834 46.2% — — — 22.2% -1.67 — 1–0 — +0.10
21 1998 1755 144.7 — — — — +27 -222 -139 53.4% +0.32 13–4 (76%) 11–12 (48%) — +0.72 — — — — — — — — — — — — — — — —
22 1999 1763 145.0 — — — — +37 -263 -154 51.2% +0.26 8–11 (42%) 10–9 (53%) — -2.53 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 2000 1819 143.8 — — — — -27 -296 -44 56.3% +0.60 10–10 (50%) 10–17 (37%) — -1.79 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 2001 1759 150.9 — — — — +67 -256 -39 61.9% +0.81 8–6 (57%) 11–10 (52%) — +0.99 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 2002 1756 148.6 — — — — +48 -275 -49 51.9% +0.44 11–10 (52%) 11–14 (44%) — -0.54 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 2003 1644 133.1 +0.95 -1.36 0.983 50.0% +72 -213 +27 48.2% +0.07 5–6 (45%) 9–9 (50%) — +1.55 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 2004 1596 125.6 +0.40 -1.44 0.961 49.5% +33 -178 +70 44.1% -0.30 3–7 (30%) 13–11 (54%) — +1.48 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 2005 1559 116.9 -1.32 -3.12 0.876 47.9% +9 — — 33.3% -0.92 2–2 (50%) 4–3 (57%) — +0.61 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 2006 1569 105.0 -1.55 +1.41 0.916 48.6% — — — 40.0% -0.60 1–0 — — +0.02 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 2007 1505 103.5 -0.27 -2.33 0.719 44.4% — — — 0.0% -1.75 — 0–1 — +0.01 2001 1595 122.1 -0.70 -2.81 0.721 45.3% +49 — — 23.8% -1.67 — 1–2 (33%) — -0.96
31 2008 1506 100.9 — — — — — — — — — — — — — 2002 1578 111.7 +0.38 -0.21 0.865 46.5% — — — 16.7% -1.17 — 0–2 — -0.38
33 2010 1508 103.1 — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
Career — 1949 145.6 +0.33 -1.61 0.952 49.4% +35 -250 -44 51.3% +0.24 62–56 (53%) 82–87 (49%) 100.1 -0.01 — 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.