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

Kenneth Carlsen vs Doug Flach H2H: 1-0

Kenneth Carlsen holds a 1–0 lead over Doug Flach in their ATP head-to-head. Across 1 main-draw meeting, Kenneth Carlsen leads 1–0 on hard courts. Most recently, Kenneth Carlsen won the 1994 San Jose round of 32 6-1 6-2.

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Kenneth Carlsen
DEN Age 53 Left-Handed 190 cm / 6'3"
H2H
1 – 0
1 main draw meetings
Doug Flach
USA Age 56 Right-Handed 183 cm / 6'0"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Kenneth Carlsen #103 6-1 6-2 Doug Flach #120 Match data Feb 3, 1994* R32 San Jose ATP World Series → modern equivalent ATP 250 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
Kenneth Carlsen #1,158 #41 791 1,754 241 275 46.7% 0 0 0 2 1 3
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 Kenneth Carlsen Doug Flach
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
17 — — — — — — — 1988 1–1 50.0% #577 1,517 0 0
19 1992 10–8 55.6% #69 1,582 0 0 — — — — — — —
20 1993 17–27 38.6% #92 1,574 0 0 — — — — — — —
21 1994 20–21 48.8% #108 1,625 0 0 — — — — — — —
22 1995 25–22 53.2% #72 1,692 0 0 1993 6–8 42.9% #123 1,569 0 0
23 1996 19–23 45.2% #73 1,635 0 0 1994 4–17 19.0% #215 1,473 0 0
24 1997 24–26 48.0% #75 1,655 0 0 1995 0–1 0.0% #648 1,462 0 0
25 1998 22–23 48.9% #83 1,622 0 1 1996 3–2 60.0% #146 1,539 0 0
26 1999 19–19 50.0% #85 1,658 0 1 1997 11–14 44.0% #174 1,572 0 0
27 — — — — — — — 1998 3–3 50.0% #215 1,609 0 0
28 2001 9–7 56.2% #153 1,678 0 1 — — — — — — —
29 2002 16–14 53.3% #65 1,743 0 2 — — — — — — —
30 2003 13–22 37.1% #108 1,594 0 2 — — — — — — —
31 2004 15–19 44.1% #84 1,650 0 2 — — — — — — —
32 2005 17–25 40.5% #66 1,573 0 3 — — — — — — —
33 2006 15–18 45.5% #137 1,597 0 3 — — — — — — —
34 2007 0–1 0.0% #498 1,481 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 Kenneth Carlsen 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 %
17 — — — — — — — — — — — — — — — — — 1988 1 1 2 50.0% — — — — — — — — — — — —
19 1992 6 3 9 66.7% 0 1 1 0.0% — — — — 4 4 8 50.0% — — — — — — — — — — — — — — — — —
20 1993 9 14 23 39.1% 2 4 6 33.3% 2 3 5 40.0% 4 6 10 40.0% — — — — — — — — — — — — — — — — —
21 1994 10 12 22 45.5% 1 2 3 33.3% 3 2 5 60.0% 6 5 11 54.5% — — — — — — — — — — — — — — — — —
22 1995 15 10 25 60.0% 2 2 4 50.0% 2 3 5 40.0% 6 7 13 46.2% 1993 6 6 12 50.0% — — — — — — — — 0 2 2 0.0%
23 1996 11 13 24 45.8% 2 3 5 40.0% 1 3 4 25.0% 5 4 9 55.6% 1994 3 8 11 27.3% 0 5 5 0.0% 0 3 3 0.0% 1 1 2 50.0%
24 1997 17 12 29 58.6% 1 5 6 16.7% 1 3 4 25.0% 5 6 11 45.5% 1995 — — — — — — — — 0 1 1 0.0% — — — —
25 1998 11 11 22 50.0% 0 2 2 0.0% 1 3 4 25.0% 10 7 17 58.8% 1996 1 1 2 50.0% — — — — 2 1 3 66.7% — — — —
26 1999 12 13 25 48.0% 1 2 3 33.3% 6 3 9 66.7% 0 1 1 0.0% 1997 5 8 13 38.5% 1 2 3 33.3% 3 3 6 50.0% 2 1 3 66.7%
27 — — — — — — — — — — — — — — — — — 1998 0 1 1 0.0% 0 1 1 0.0% 3 1 4 75.0% — — — —
28 2001 5 4 9 55.6% — — — — 4 3 7 57.1% — — — — — — — — — — — — — — — — — — — — —
29 2002 11 9 20 55.0% — — — — 4 3 7 57.1% 1 2 3 33.3% — — — — — — — — — — — — — — — — —
30 2003 11 14 25 44.0% 1 4 5 20.0% 1 3 4 25.0% 0 1 1 0.0% — — — — — — — — — — — — — — — — —
31 2004 9 12 21 42.9% 0 3 3 0.0% 4 3 7 57.1% 2 1 3 66.7% — — — — — — — — — — — — — — — — —
32 2005 13 14 27 48.1% 0 5 5 0.0% 2 3 5 40.0% 2 3 5 40.0% — — — — — — — — — — — — — — — — —
33 2006 14 14 28 50.0% 0 1 1 0.0% 0 2 2 0.0% 1 1 2 50.0% — — — — — — — — — — — — — — — — —
34 2007 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
Career — 154 156 310 49.7% 10 34 44 22.7% 31 37 68 45.6% 46 48 94 48.9% — 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 448/516 of Kenneth Carlsen'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 Kenneth Carlsen 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%
19 1992 13/18 8.4 1.8 58.2% 77.8% 54.9% 67.5% 38.7% 68.2% 33.3% — —/— — — — — — — — — —
20 1993 41/44 6.8 2.9 55.0% 75.7% 49.6% 51.7% 33.0% 64.2% 34.6% — —/— — — — — — — — — —
21 1994 36/41 7.2 2.8 57.5% 75.3% 52.1% 65.5% 43.1% 65.2% 34.3% — —/— — — — — — — — — —
22 1995 42/47 8.8 3.9 57.6% 76.1% 50.6% 65.4% 46.2% 65.2% 34.3% 1993 13/14 3.5 3.1 56.1% 68.3% 47.6% 46.4% 43.7% 59.0% 37.9%
23 1996 32/42 7.9 4.1 58.6% 75.2% 50.8% 66.3% 30.0% 64.9% 34.9% 1994 19/21 2.5 3.5 58.4% 63.4% 45.0% 59.5% 34.9% 55.7% 34.3%
24 1997 39/50 9.0 3.7 56.3% 75.3% 50.4% 65.7% 42.1% 64.4% 35.5% 1995 1/1 3.0 6.0 61.9% 65.0% 35.1% 62.5% 20.0% 53.6% 34.3%
25 1998 32/45 9.4 4.5 54.5% 76.8% 48.7% 66.6% 42.3% 64.1% 34.5% 1996 2/5 12.0 6.0 58.7% 67.1% 45.6% 43.2% 30.5% 58.4% 38.2%
26 1999 33/38 5.9 3.5 59.1% 74.4% 50.3% 58.0% 41.7% 64.6% 37.1% 1997 24/25 3.1 4.0 56.6% 65.8% 46.4% 52.8% 45.5% 57.4% 38.8%
27 — —/— — — — — — — — — — 1998 6/6 1.0 2.3 58.1% 60.6% 48.3% 41.0% 57.5% 55.2% 39.8%
28 2001 13/16 8.9 6.2 55.5% 73.0% 48.1% 62.6% 38.0% 61.9% 37.2% — —/— — — — — — — — — —
29 2002 25/30 9.7 2.8 59.8% 75.3% 53.2% 75.9% 31.5% 66.6% 34.2% — —/— — — — — — — — — —
30 2003 34/35 8.3 2.9 58.2% 73.2% 50.2% 51.3% 34.2% 63.3% 34.5% — —/— — — — — — — — — —
31 2004 34/34 7.5 3.1 60.6% 73.0% 49.3% 48.2% 38.9% 63.6% 33.4% — —/— — — — — — — — — —
32 2005 41/42 6.1 2.7 60.3% 71.4% 47.6% 63.1% 31.3% 61.7% 31.7% — —/— — — — — — — — — —
33 2006 32/33 7.1 2.1 61.4% 72.6% 50.2% 58.8% 39.9% 64.0% 34.4% — —/— — — — — — — — — —
34 2007 1/1 13.0 1.0 76.3% 80.0% 50.0% 0.0% 0.0% 72.9% 21.2% — —/— — — — — — — — — —
Career — 448/516 7.8 3.3 58.1% 74.6% 50.2% 61.1% 38.0% 64.3% 34.4% — 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 Kenneth Carlsen 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
17 — — — — — — — — — — — — — — — — 1988 1517 110.2 — — — — — — — 40.0% -0.20 1–0 — — +0.02
19 1992 1583 123.7 +3.17 -2.70 1.049 50.9% +31 — — 52.4% +0.38 3–1 (75%) 2–5 (29%) — +1.52 — — — — — — — — — — — — — — — —
20 1993 1575 137.7 +2.19 -2.94 0.967 49.0% +16 -19 +24 41.8% -0.30 3–4 (43%) 4–9 (31%) — -0.66 — — — — — — — — — — — — — — — —
21 1994 1626 135.7 +2.62 -2.80 0.985 49.7% -7 -82 +48 48.0% +0.05 6–3 (67%) 6–12 (33%) — +0.62 — — — — — — — — — — — — — — — —
22 1995 1692 137.1 +2.15 -2.47 0.985 50.1% +25 -113 -61 50.0% +0.01 8–7 (53%) 13–12 (52%) — -0.47 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 1996 1635 128.4 +2.08 -2.12 0.993 49.7% +14 -66 -25 47.7% -0.21 6–9 (40%) 11–9 (55%) — +1.61 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 1997 1656 129.2 +2.54 -2.10 0.998 50.1% +36 -138 -67 50.0% -0.02 9–12 (43%) 16–15 (52%) — +1.85 1995 1462 99.6 -2.17 -0.92 0.740 43.9% — — — 33.3% -2.33 0–1 1–0 — +0.05
25 1998 1622 133.7 +1.62 -2.28 0.960 49.4% +55 — -75 49.6% +0.09 9–11 (45%) 8–11 (42%) — +2.63 1996 1540 108.3 +1.07 +1.46 0.919 48.0% — — +74 50.0% -0.83 — 4–0 (100%) — +0.18
26 1999 1658 136.2 +1.26 +0.13 1.048 50.7% +21 -163 -30 51.6% +0.05 5–7 (42%) 9–6 (60%) — +1.32 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 — — — — — — — — — — — — — — — — 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 2001 1679 118.7 +0.30 -0.45 0.975 49.8% -2 — -48 60.5% +0.53 2–3 (40%) 6–2 (75%) — +0.81 — — — — — — — — — — — — — — — —
29 2002 1743 133.7 +3.42 -2.03 1.023 50.3% 0 — -100 51.4% +0.04 6–5 (55%) 14–9 (61%) — -0.90 — — — — — — — — — — — — — — — —
30 2003 1594 113.9 +0.36 -2.67 0.941 48.7% +43 -159 -14 41.9% -0.54 7–9 (44%) 11–6 (65%) — +2.57 — — — — — — — — — — — — — — — —
31 2004 1650 124.0 +0.26 -2.15 0.919 48.5% +14 -237 -5 40.7% -0.60 8–4 (67%) 11–7 (61%) — -0.08 — — — — — — — — — — — — — — — —
32 2005 1573 117.9 -1.06 -3.54 0.828 46.7% +32 -220 +37 38.1% -1.00 8–4 (67%) 15–12 (56%) — +1.51 — — — — — — — — — — — — — — — —
33 2006 1598 132.6 +0.39 -1.27 0.954 49.1% +53 — — 41.8% -0.23 8–4 (67%) 6–8 (43%) — -0.19 — — — — — — — — — — — — — — — —
34 2007 1481 95.8 -0.84 -0.44 0.782 45.6% — — — 0.0% -2.00 — 0–1 — +0.29 — — — — — — — — — — — — — — — —
Career — 1754 134.8 +1.46 -2.20 0.965 49.4% +26 -127 -28 46.8% -0.17 88–83 (51%) 132–124 (52%) 104.2 +2.42 — 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.