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

Thomas Muster vs Doug Flach H2H: 1-0

Thomas Muster holds a 1–0 lead over Doug Flach in their ATP head-to-head. Across 1 main-draw meeting, Thomas Muster leads 1–0 on clay. Most recently, Thomas Muster won the 1994 Mexican Open round of 32 6-4 6-3.

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Thomas Muster
AUT Age 58 Left-Handed 180 cm / 5'11"
H2H
1 – 0
1 main draw meetings
Doug Flach
USA Age 56 Right-Handed 183 cm / 6'0"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Thomas Muster #11 6-4 6-3 Doug Flach #109 Match data Feb 24, 1994* R32 Mexican Open ATP World Series → modern equivalent ATP 250 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
Thomas Muster #1,092 #1 4,474 2,165 590 268 68.8% 1 8 0 4 31 44
Doug Flach #788 #108 415 1,628 28 46 37.8% 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 Thomas Muster Doug Flach
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
16 1984 2–2 50.0% — 1,533 0 0 — — — — — — —
17 1985 9–8 52.9% #98 1,612 0 0 1988 1–1 50.0% #577 1,517 0 0
18 1986 18–16 52.9% #47 1,741 0 1 — — — — — — —
19 1987 22–16 57.9% #56 1,753 0 1 — — — — — — —
20 1988 47–16 74.6% #16 1,915 0 5 — — — — — — —
21 1989 18–10 64.3% #21 1,867 0 5 — — — — — — —
22 1990 45–17 72.6% #7 1,861 0 8 1993 6–8 42.9% #123 1,569 0 0
23 1991 30–18 62.5% #35 1,835 0 10 1994 4–17 19.0% #215 1,473 0 0
24 1992 39–23 62.9% #18 1,783 0 13 1995 0–1 0.0% #648 1,462 0 0
25 1993 77–21 78.6% #9 1,953 0 20 1996 3–2 60.0% #146 1,539 0 0
26 1994 54–26 67.5% #16 1,832 0 23 1997 11–14 44.0% #174 1,572 0 0
27 1995 84–17 83.2% #3 2,005 1 35 1998 3–3 50.0% #215 1,609 0 0
28 1996 65–21 75.6% #5 1,927 1 42 — — — — — — —
29 1997 43–23 65.2% #9 1,823 1 44 — — — — — — —
30 1998 32–20 61.5% #25 1,801 1 44 — — — — — — —
31 1999 5–11 31.2% #189 1,675 1 44 — — — — — — —
42 2010 0–1 0.0% #980 1,656 1 44 — — — — — — —
43 2011 0–2 0.0% #1075 1,608 1 44 — — — — — — —

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 Thomas Muster Doug Flach
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 1984 1 1 2 50.0% 1 1 2 50.0% — — — — — — — — — — — — — — — — — — — — — — — — —
17 1985 1 1 2 50.0% 8 7 15 53.3% — — — — — — — — 1988 1 1 2 50.0% — — — — — — — — — — — —
18 1986 1 5 6 16.7% 17 10 27 63.0% — — — — 0 1 1 0.0% — — — — — — — — — — — — — — — — —
19 1987 9 5 14 64.3% 13 10 23 56.5% 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — —
20 1988 3 5 8 37.5% 39 9 48 81.3% — — — — 5 2 7 71.4% — — — — — — — — — — — — — — — — —
21 1989 12 5 17 70.6% 2 2 4 50.0% — — — — 4 3 7 57.1% — — — — — — — — — — — — — — — — —
22 1990 10 2 12 83.3% 31 10 41 75.6% — — — — 4 5 9 44.4% 1993 6 6 12 50.0% — — — — — — — — 0 2 2 0.0%
23 1991 2 3 5 40.0% 28 13 41 68.3% — — — — 0 2 2 0.0% 1994 3 8 11 27.3% 0 5 5 0.0% 0 3 3 0.0% 1 1 2 50.0%
24 1992 7 5 12 58.3% 30 13 43 69.8% 0 1 1 0.0% 2 4 6 33.3% 1995 — — — — — — — — 0 1 1 0.0% — — — —
25 1993 18 7 25 72.0% 55 10 65 84.6% 0 1 1 0.0% 4 3 7 57.1% 1996 1 1 2 50.0% — — — — 2 1 3 66.7% — — — —
26 1994 18 10 28 64.3% 33 10 43 76.7% 0 1 1 0.0% 3 5 8 37.5% 1997 5 8 13 38.5% 1 2 3 33.3% 3 3 6 50.0% 2 1 3 66.7%
27 1995 9 6 15 60.0% 65 3 68 95.6% — — — — 10 8 18 55.6% 1998 0 1 1 0.0% 0 1 1 0.0% 3 1 4 75.0% — — — —
28 1996 13 8 21 61.9% 46 4 50 92.0% 4 2 6 66.7% 2 7 9 22.2% — — — — — — — — — — — — — — — — —
29 1997 27 8 35 77.1% 8 8 16 50.0% 2 2 4 50.0% 6 5 11 54.5% — — — — — — — — — — — — — — — — —
30 1998 11 7 18 61.1% 20 11 31 64.5% 0 1 1 0.0% 1 1 2 50.0% — — — — — — — — — — — — — — — — —
31 1999 4 5 9 44.4% 1 6 7 14.3% — — — — — — — — — — — — — — — — — — — — — — — — —
42 2010 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
43 2011 0 1 1 0.0% 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — — — — — —
Career — 146 85 231 63.2% 397 128 525 75.6% 6 9 15 40.0% 41 46 87 47.1% — 16 25 41 39.0% 1 8 9 11.1% 8 9 17 47.1% 3 4 7 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 527/612 of Thomas Muster's and 65/72 of Doug Flach'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 Thomas Muster Doug Flach
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%
22 — —/— — — — — — — — — — 1993 13/14 3.5 3.1 56.1% 68.3% 47.6% 46.4% 43.7% 59.0% 37.9%
23 1991 42/48 1.0 1.5 73.3% 62.9% 51.5% 61.3% 49.1% 59.6% 44.0% 1994 19/21 2.5 3.5 58.4% 63.4% 45.0% 59.5% 34.9% 55.7% 34.3%
24 1992 52/62 2.0 1.9 66.2% 66.6% 53.3% 60.0% 44.4% 61.5% 40.7% 1995 1/1 3.0 6.0 61.9% 65.0% 35.1% 62.5% 20.0% 53.6% 34.3%
25 1993 92/98 2.8 2.5 61.6% 71.7% 57.7% 62.0% 46.4% 66.1% 43.4% 1996 2/5 12.0 6.0 58.7% 67.1% 45.6% 43.2% 30.5% 58.4% 38.2%
26 1994 68/80 4.0 3.5 58.1% 71.4% 54.0% 56.3% 46.4% 63.9% 41.8% 1997 24/25 3.1 4.0 56.6% 65.8% 46.4% 52.8% 45.5% 57.4% 38.8%
27 1995 86/101 3.1 2.5 59.5% 71.9% 54.7% 56.6% 54.3% 64.8% 45.6% 1998 6/6 1.0 2.3 58.1% 60.6% 48.3% 41.0% 57.5% 55.2% 39.8%
28 1996 71/86 3.2 2.3 59.3% 72.1% 53.3% 67.9% 45.7% 64.4% 43.4% — —/— — — — — — — — — —
29 1997 57/66 4.2 2.3 56.8% 73.4% 53.1% 65.8% 49.9% 64.4% 38.4% — —/— — — — — — — — — —
30 1998 44/52 3.0 2.1 59.0% 69.3% 52.9% 59.8% 46.5% 62.1% 40.5% — —/— — — — — — — — — —
31 1999 12/16 2.7 2.9 61.9% 62.8% 52.0% 61.2% 27.2% 58.1% 34.2% — —/— — — — — — — — — —
42 2010 1/1 5.0 2.0 60.6% 62.5% 61.5% 66.7% — 62.1% 21.8% — —/— — — — — — — — — —
43 2011 2/2 3.0 3.0 60.5% 55.9% 29.0% 35.3% 29.2% 45.6% 35.9% — —/— — — — — — — — — —
Career — 527/858 3.0 2.4 61.2% 70.2% 54.1% 61.0% 47.4% 63.6% 42.3% — 65/74 3.1 3.6 57.3% 65.2% 46.2% 52.2% 42.3% 57.0% 37.3%

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 Thomas Muster Doug Flach
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 1984 1533 117.1 — — — — — — — 50.0% +0.50 — — — -0.24 — — — — — — — — — — — — — — — —
17 1985 1612 126.8 — — — — — +22 — 50.0% -0.15 3–2 (60%) 2–1 (67%) — +0.07 1988 1517 110.2 — — — — — — — 40.0% -0.20 1–0 — — +0.02
18 1986 1741 147.7 — — — — -223 +71 — 54.8% +0.44 4–6 (40%) 4–4 (50%) — -1.90 — — — — — — — — — — — — — — — —
19 1987 1754 137.1 — — — — -95 +27 — 55.2% +0.25 9–5 (64%) 11–6 (65%) — -0.14 — — — — — — — — — — — — — — — —
20 1988 1916 160.0 — — — — -207 +120 — 67.1% +1.44 12–2 (86%) 6–4 (60%) — -1.96 — — — — — — — — — — — — — — — —
21 1989 1868 141.2 — — — — -42 +130 — 64.5% +0.91 3–4 (43%) 6–2 (75%) — +0.55 — — — — — — — — — — — — — — — —
22 1990 1862 152.4 — — — — -32 +106 — 65.8% +0.93 13–4 (76%) 14–5 (74%) — +0.89 1993 1569 129.0 -1.64 +0.52 0.925 48.4% +24 — — 42.9% -0.14 2–2 (50%) 2–4 (33%) — +0.16
23 1991 1836 142.4 -0.24 +3.28 1.088 51.7% -95 +121 — 58.8% +0.61 12–9 (57%) 7–6 (54%) — -0.44 1994 1473 119.8 -4.15 -1.48 0.776 45.4% +91 +7 +73 25.0% -1.71 0–4 (0%) 5–4 (56%) — -0.42
24 1992 1783 142.2 +0.70 +1.68 1.059 50.8% -81 +156 — 56.4% +0.48 16–5 (76%) 9–11 (45%) — +0.43 1995 1462 99.6 -2.17 -0.92 0.740 43.9% — — — 33.3% -2.33 0–1 1–0 — +0.05
25 1993 1954 154.4 +4.84 +4.04 1.280 54.2% -117 +137 — 71.5% +1.48 17–7 (71%) 16–17 (48%) — +2.71 1996 1540 108.3 +1.07 +1.46 0.919 48.0% — — +74 50.0% -0.83 — 4–0 (100%) — +0.18
26 1994 1832 152.5 +2.55 +2.88 1.158 52.7% +6 +172 — 65.5% +1.10 15–12 (56%) 18–13 (58%) — +0.94 1997 1573 119.7 -3.04 +0.18 0.912 48.2% +20 -88 +66 46.9% -0.72 3–6 (33%) 7–3 (70%) — +1.00
27 1995 2006 162.1 +3.78 +6.50 1.294 54.8% -159 +281 — 75.0% +1.55 20–9 (69%) 27–8 (77%) — -0.55 1998 1610 108.9 -2.52 +0.84 0.890 47.6% — — +73 42.9% -0.29 2–0 1–2 (33%) — -0.45
28 1996 1928 153.9 +2.83 +4.89 1.219 53.6% -136 +345 -340 71.6% +1.36 15–5 (75%) 19–9 (68%) — +1.60 — — — — — — — — — — — — — — — —
29 1997 1824 152.8 +2.58 +1.22 1.077 51.5% +70 +208 -208 61.7% +0.64 12–9 (57%) 17–10 (63%) — -0.07 — — — — — — — — — — — — — — — —
30 1998 1801 149.6 +0.50 +1.96 1.068 51.4% +43 +123 — 56.8% +0.65 11–3 (79%) 3–8 (27%) — -1.16 — — — — — — — — — — — — — — — —
31 1999 1676 130.2 -0.85 -2.23 0.815 47.0% +114 +110 — 35.0% -0.85 2–2 (50%) 2–3 (40%) — -1.42 — — — — — — — — — — — — — — — —
42 2010 1656 99.5 -1.45 +0.41 0.576 43.8% — — — 0.0% -2.50 — 0–1 — +0.12 — — — — — — — — — — — — — — — —
43 2011 1609 96.4 -3.83 -0.41 0.661 41.0% — — — 0.0% -4.00 — — — +0.06 — — — — — — — — — — — — — — — —
Career — 2165 156.5 +2.51 +3.47 1.162 52.7% -56 +164 -287 64.1% +0.95 164–84 (66%) 161–108 (60%) 106.5 -0.06 — 1629 125.3 -2.90 -0.15 0.868 47.3% +43 -29 +71 40.1% -0.86 8–13 (38%) 20–13 (61%) 102.9 +0.73

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.