H2H data updated: 2026-09-03 00:00 UTC

Ken Flach vs Jan Gunnarsson H2H: 0-1

Jan Gunnarsson holds a 1–0 lead over Ken Flach in their ATP head-to-head. Across 1 main-draw meeting, Jan Gunnarsson leads 1–0 on hard courts. Most recently, Jan Gunnarsson won the 1990 Indian Wells Open round of 32 4-6 6-3 6-2.

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Ken Flach
USA Right-Handed 185 cm / 6'1"
H2H
0 – 1
1 main draw meetings
Jan Gunnarsson
SWE Age 64 Right-Handed 185 cm / 6'1"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Jan Gunnarsson #54 4-6 6-3 6-2 Ken Flach #236 Match data Mar 8, 1990* R32 Indian Wells Open Masters 1000 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
Ken Flach #815 #56 130 1,715 52 80 39.4% 0 0 0 0 0 0
Jan Gunnarsson #774 #25 579 1,822 190 203 48.3% 0 0 0 0 1 1

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 Ken Flach Jan Gunnarsson
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
17 — — — — — — — 1979 1–4 20.0% #389 1,489 0 0
18 — — — — — — — 1980 1–5 16.7% #274 1,464 0 0
19 1982 0–1 0.0% — 1,498 0 0 1981 4–6 40.0% #96 1,511 0 0
20 1983 2–3 40.0% #314 1,521 0 0 1982 9–12 42.9% #96 1,557 0 0
21 1984 7–6 53.8% #155 1,599 0 0 1983 18–16 52.9% #99 1,677 0 0
22 1985 12–12 50.0% #60 1,676 0 0 1984 21–17 55.3% #48 1,725 0 0
23 1986 4–15 21.1% #223 1,557 0 0 1985 30–20 60.0% #25 1,798 0 1
24 1987 10–13 43.5% #100 1,621 0 0 1986 23–24 48.9% #57 1,749 0 1
25 1988 7–12 36.8% #203 1,618 0 0 1987 21–18 53.8% #39 1,752 0 1
26 1989 6–7 46.2% #194 1,651 0 0 1988 13–15 46.4% #84 1,699 0 1
27 1990 3–6 33.3% #222 1,611 0 0 1989 22–18 55.0% #29 1,789 0 1
28 1991 0–2 0.0% #572 1,575 0 0 1990 8–21 27.6% #99 1,591 0 1
29 1992 0–1 0.0% #742 1,559 0 0 1991 15–17 46.9% #94 1,645 0 1
30 — — — — — — — 1992 3–9 25.0% #296 1,601 0 1
31 1994 1–1 50.0% #514 1,575 0 0 1993 1–1 50.0% #511 1,600 0 1
32 1995 0–1 0.0% #835 1,570 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 Ken Flach Jan Gunnarsson
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 — — — — — — — — — — — — — — — — — 1979 0 1 1 0.0% 1 3 4 25.0% — — — — — — — —
18 — — — — — — — — — — — — — — — — — 1980 — — — — 1 5 6 16.7% — — — — — — — —
19 1982 — — — — 0 1 1 0.0% — — — — — — — — 1981 1 2 3 33.3% 3 3 6 50.0% — — — — 0 1 1 0.0%
20 1983 1 1 2 50.0% 0 1 1 0.0% 1 1 2 50.0% — — — — 1982 6 4 10 60.0% 2 7 9 22.2% — — — — 1 1 2 50.0%
21 1984 3 2 5 60.0% — — — — 3 3 6 50.0% 1 1 2 50.0% 1983 5 4 9 55.6% 12 10 22 54.5% 0 1 1 0.0% 1 1 2 50.0%
22 1985 10 8 18 55.6% — — — — 1 2 3 33.3% 1 2 3 33.3% 1984 11 6 17 64.7% 9 9 18 50.0% 0 1 1 0.0% 1 1 2 50.0%
23 1986 2 6 8 25.0% 0 3 3 0.0% 2 2 4 50.0% 0 4 4 0.0% 1985 13 6 19 68.4% 12 8 20 60.0% 1 1 2 50.0% 4 5 9 44.4%
24 1987 6 8 14 42.9% — — — — 4 4 8 50.0% 0 1 1 0.0% 1986 13 8 21 61.9% 8 8 16 50.0% 1 1 2 50.0% 1 7 8 12.5%
25 1988 2 6 8 25.0% 0 1 1 0.0% 3 2 5 60.0% 2 3 5 40.0% 1987 3 4 7 42.9% 11 8 19 57.9% 1 1 2 50.0% 6 5 11 54.5%
26 1989 3 4 7 42.9% — — — — 2 1 3 66.7% 1 2 3 33.3% 1988 4 4 8 50.0% 8 9 17 47.1% 1 1 2 50.0% 0 1 1 0.0%
27 1990 2 4 6 33.3% — — — — 1 1 2 50.0% 0 1 1 0.0% 1989 6 6 12 50.0% 11 8 19 57.9% 2 1 3 66.7% 3 3 6 50.0%
28 1991 0 1 1 0.0% — — — — — — — — 0 1 1 0.0% 1990 4 5 9 44.4% 3 9 12 25.0% 0 1 1 0.0% 1 6 7 14.3%
29 1992 0 1 1 0.0% — — — — — — — — — — — — 1991 1 3 4 25.0% 7 6 13 53.8% 3 2 5 60.0% 4 6 10 40.0%
30 — — — — — — — — — — — — — — — — — 1992 0 3 3 0.0% 3 4 7 42.9% — — — — 0 2 2 0.0%
31 1994 1 1 2 50.0% — — — — — — — — — — — — 1993 — — — — 1 1 2 50.0% — — — — — — — —
32 1995 — — — — — — — — 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — —
Career — 30 42 72 41.7% 0 6 6 0.0% 17 17 34 50.0% 5 15 20 25.0% — 67 56 123 54.5% 92 98 190 48.4% 9 10 19 47.4% 22 39 61 36.1%

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 Ken Flach Jan Gunnarsson
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 — — — — — — — — — — — — — — — — 1979 1489 112.1 — — — — — +29 — 18.2% -1.55 1–0 0–3 (0%) — -0.06
18 — — — — — — — — — — — — — — — — 1980 1464 99.9 — — — — — +17 — 23.1% -2.23 0–1 — — +0.20
19 1982 1499 112.4 — — — — — — — 0.0% -4.00 — — — -0.28 1981 1511 116.2 — — — — +24 +10 — 47.6% -0.19 1–2 (33%) 1–2 (33%) — -0.01
20 1983 1522 107.7 — — — — — — — 41.7% -0.75 — 0–2 — +0.25 1982 1558 117.4 — — — — +17 -40 — 38.8% -0.74 4–2 (67%) 1–5 (17%) — +1.08
21 1984 1599 117.5 — — — — +21 — -14 51.2% -0.05 4–3 (57%) 2–4 (33%) — +0.63 1983 1677 133.7 — — — — -43 -28 — 47.4% -0.49 5–3 (63%) 5–3 (63%) — -0.93
22 1985 1676 134.2 — — — — +19 — -94 44.8% -0.26 4–0 (100%) 4–2 (67%) — -0.49 1984 1725 136.5 — — — — +13 -29 — 52.1% +0.14 8–4 (67%) 5–5 (50%) — +1.02
23 1986 1557 111.4 — — — — +7 -76 +56 29.4% -1.16 2–4 (33%) 2–4 (33%) — -0.12 1985 1798 143.8 — — — — -18 -6 — 55.0% +0.25 12–5 (71%) 10–6 (63%) — -0.13
24 1987 1622 115.8 — — — — -40 — +10 48.6% -0.39 2–5 (29%) 9–4 (69%) — +1.50 1986 1750 129.4 — — — — -39 +20 — 50.0% -0.49 5–5 (50%) 10–5 (67%) — -0.77
25 1988 1618 116.8 — — — — -94 — +56 42.1% -0.67 4–5 (44%) 4–5 (44%) — -1.49 1987 1752 142.2 — — — — -49 +41 — 51.1% -0.11 5–3 (63%) 8–2 (80%) — -2.77
26 1989 1652 118.7 — — — — -87 — +41 48.9% -0.31 3–4 (43%) 7–5 (58%) — -0.04 1988 1700 126.1 — — — — -14 +18 — 50.7% -0.22 2–6 (25%) 9–6 (60%) — -0.63
27 1990 1612 118.0 — — — — -53 — — 44.0% -0.40 1–4 (20%) 2–1 (67%) — -0.05 1989 1790 145.2 — — — — -46 -48 -132 52.8% +0.29 5–3 (63%) 5–6 (45%) — -2.91
28 1991 1576 100.1 -1.14 -2.20 0.974 48.8% — — — 20.0% -1.20 0–1 1–1 — +0.27 1990 1591 134.3 — — — — +79 +64 — 37.8% -0.96 3–9 (25%) 7–4 (64%) — -1.27
29 1992 1559 98.8 -2.84 -0.85 0.759 44.2% — — — 0.0% -3.00 — — — +0.08 1991 1645 130.9 — — — — -9 +23 +51 49.4% -0.25 1–5 (17%) 6–1 (86%) — +0.23
30 — — — — — — — — — — — — — — — — 1992 1602 120.4 — — — — -3 +40 — 27.6% -1.69 2–2 (50%) 1–1 — -0.91
31 1994 1576 112.6 -0.30 +1.03 0.724 46.6% — — — 40.0% -1.00 1–0 1–0 — -0.06 1993 1601 102.8 — — — — — — — 50.0% -0.25 — 0–1 — +0.14
32 1995 1571 105.1 +1.22 +5.29 0.983 49.9% — — — 40.0% 0.00 0–1 0–1 — -0.28 — — — — — — — — — — — — — — — —
Career — 1715 126.9 -0.75 +0.35 0.851 47.5% -29 -76 +12 43.2% -0.53 21–27 (44%) 32–29 (52%) 100.9 -0.06 — 1823 140.9 — — — — -12 +3 -18 48.1% -0.28 54–50 (52%) 68–50 (58%) 108.9 -1.97

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.