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

Ken Flach vs Jay Lapidus H2H: 0-1

Jay Lapidus holds a 1–0 lead over Ken Flach in their ATP head-to-head. Across 1 main-draw meeting, Jay Lapidus leads 1–0 on hard courts. Most recently, Jay Lapidus won the 1985 Canadian Open round of 64 6-2 6-4.

Want to explore more matchups? Advanced rivalry search lets you browse current and historical rivalries, unbeaten records, or every matchup for a player.

Ken Flach
USA Right-Handed 185 cm / 6'1"
H2H
0 – 1
1 main draw meetings
Jay Lapidus
USA Age 67 Left-Handed 188 cm / 6'2"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Jay Lapidus #103 6-2 6-4 Ken Flach #63 Match data Aug 14, 1985* R64 Canadian Open ATP 500 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
Jay Lapidus #621 #34 0 1,780 76 106 41.8% 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 Jay Lapidus
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
19 1982 0–1 0.0% — 1,498 0 0 1978 0–1 0.0% #272 1,494 0 0
20 1983 2–3 40.0% #314 1,521 0 0 1979 6–6 50.0% #184 1,560 0 0
21 1984 7–6 53.8% #155 1,599 0 0 1980 2–7 22.2% #283 1,548 0 0
22 1985 12–12 50.0% #60 1,676 0 0 1981 9–12 42.9% — 1,609 0 0
23 1986 4–15 21.1% #223 1,557 0 0 1982 26–17 60.5% #40 1,760 0 1
24 1987 10–13 43.5% #100 1,621 0 0 1983 0–7 0.0% #81 1,623 0 1
25 1988 7–12 36.8% #203 1,618 0 0 1984 13–12 52.0% #65 1,669 0 1
26 1989 6–7 46.2% #194 1,651 0 0 1985 11–25 30.6% #150 1,621 0 1
27 1990 3–6 33.3% #222 1,611 0 0 1986 5–7 41.7% #145 1,625 0 1
28 1991 0–2 0.0% #572 1,575 0 0 1987 4–12 25.0% #234 1,550 0 1
29 1992 0–1 0.0% #742 1,559 0 0 — — — — — — —
31 1994 1–1 50.0% #514 1,575 0 0 — — — — — — —
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 Jay Lapidus
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 %
19 1982 — — — — 0 1 1 0.0% — — — — — — — — 1978 — — — — 0 1 1 0.0% — — — — — — — —
20 1983 1 1 2 50.0% 0 1 1 0.0% 1 1 2 50.0% — — — — 1979 0 1 1 0.0% 5 4 9 55.6% 1 1 2 50.0% — — — —
21 1984 3 2 5 60.0% — — — — 3 3 6 50.0% 1 1 2 50.0% 1980 1 1 2 50.0% 0 2 2 0.0% 1 3 4 25.0% 0 1 1 0.0%
22 1985 10 8 18 55.6% — — — — 1 2 3 33.3% 1 2 3 33.3% 1981 3 5 8 37.5% 5 5 10 50.0% 1 1 2 50.0% 0 1 1 0.0%
23 1986 2 6 8 25.0% 0 3 3 0.0% 2 2 4 50.0% 0 4 4 0.0% 1982 16 7 23 69.6% 3 4 7 42.9% 4 3 7 57.1% 3 3 6 50.0%
24 1987 6 8 14 42.9% — — — — 4 4 8 50.0% 0 1 1 0.0% 1983 0 4 4 0.0% — — — — 0 1 1 0.0% 0 2 2 0.0%
25 1988 2 6 8 25.0% 0 1 1 0.0% 3 2 5 60.0% 2 3 5 40.0% 1984 7 3 10 70.0% 4 5 9 44.4% 2 3 5 40.0% 0 1 1 0.0%
26 1989 3 4 7 42.9% — — — — 2 1 3 66.7% 1 2 3 33.3% 1985 3 12 15 20.0% 0 3 3 0.0% 4 5 9 44.4% 4 5 9 44.4%
27 1990 2 4 6 33.3% — — — — 1 1 2 50.0% 0 1 1 0.0% 1986 3 5 8 37.5% — — — — 2 2 4 50.0% — — — —
28 1991 0 1 1 0.0% — — — — — — — — 0 1 1 0.0% 1987 3 7 10 30.0% 0 2 2 0.0% 1 3 4 25.0% — — — —
29 1992 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
31 1994 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% — 36 45 81 44.4% 17 26 43 39.5% 16 22 38 42.1% 7 13 20 35.0%

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 Jay Lapidus
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
19 1982 1499 112.4 — — — — — — — 0.0% -4.00 — — — -0.28 1978 1494 100.9 — — — — — — — 33.3% 0.00 0–1 0–2 — -0.10
20 1983 1522 107.7 — — — — — — — 41.7% -0.75 — 0–2 — +0.25 1979 1560 123.2 — — — — — +34 — 48.1% -0.78 1–2 (33%) 4–1 (80%) — +0.12
21 1984 1599 117.5 — — — — +21 — -14 51.2% -0.05 4–3 (57%) 2–4 (33%) — +0.63 1980 1548 114.6 — — — — -27 — -18 34.8% -1.26 0–3 (0%) 3–1 (75%) — -0.54
22 1985 1676 134.2 — — — — +19 — -94 44.8% -0.26 4–0 (100%) 4–2 (67%) — -0.49 1981 1609 120.7 — — — — -79 +4 — 43.9% -0.79 6–5 (55%) 3–1 (75%) — -0.65
23 1986 1557 111.4 — — — — +7 -76 +56 29.4% -1.16 2–4 (33%) 2–4 (33%) — -0.12 1982 1760 131.6 — — — — -34 -136 -200 57.0% +0.20 6–4 (60%) 8–4 (67%) — +1.42
24 1987 1622 115.8 — — — — -40 — +10 48.6% -0.39 2–5 (29%) 9–4 (69%) — +1.50 1983 1624 105.1 — — — — -6 — — 15.8% -2.31 0–2 2–0 — -0.08
25 1988 1618 116.8 — — — — -94 — +56 42.1% -0.67 4–5 (44%) 4–5 (44%) — -1.49 1984 1670 120.2 — — — — +11 -60 -141 54.4% +0.40 2–2 (50%) 2–4 (33%) — +1.43
26 1989 1652 118.7 — — — — -87 — +41 48.9% -0.31 3–4 (43%) 7–5 (58%) — -0.04 1985 1622 129.4 — — — — -58 -59 +6 35.4% -0.88 5–7 (42%) 5–9 (36%) — -1.39
27 1990 1612 118.0 — — — — -53 — — 44.0% -0.40 1–4 (20%) 2–1 (67%) — -0.05 1986 1625 117.1 — — — — -69 — +27 45.5% -0.30 2–2 (50%) 4–2 (67%) — +0.19
28 1991 1576 100.1 -1.14 -2.20 0.974 48.8% — — — 20.0% -1.20 0–1 1–1 — +0.27 1987 1551 114.3 — — — — -8 — +42 32.5% -1.10 1–3 (25%) 1–3 (25%) — -0.11
29 1992 1559 98.8 -2.84 -0.85 0.759 44.2% — — — 0.0% -3.00 — — — +0.08 — — — — — — — — — — — — — — — —
31 1994 1576 112.6 -0.30 +1.03 0.724 46.6% — — — 40.0% -1.00 1–0 1–0 — -0.06 — — — — — — — — — — — — — — — —
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 — 1781 129.6 — — — — -37 -35 -56 44.0% -0.52 23–31 (43%) 32–27 (54%) 102.4 +0.16

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.