H2H data updated: 2026-10-20 00:00 UTC

Jan Kukal vs Dennis Ralston H2H: 0-1

Dennis Ralston holds a 1–0 lead over Jan Kukal in their ATP head-to-head. Across 1 main-draw meeting, Dennis Ralston leads 1–0 on grass. Most recently, Dennis Ralston won the 1969 Wimbledon round of 64 7-5 6-2 6-4.

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Jan Kukal
CZE Age 84 Right-Handed
H2H
0 – 1
1 main-draw meetings
Dennis Ralston
USA Right-Handed 188 cm / 6'2"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Dennis Ralston 7-5 6-2 6-4 Jan Kukal Match data Jun 27, 1969* R64 Wimbledon Grand Slam Grass

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 Kukal #955 #115 5 1,644 57 81 41.3% 0 0 0 0 0 0
Dennis Ralston #287 #115 0 1,957 156 135 53.6% 0 0 0 0 4 4

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 Kukal Dennis Ralston
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
25 1968 16–17 48.5% — 1,531 0 0 1968 48–25 65.8% — 1,694 0 3
26 1969 13–11 54.2% — 1,582 0 0 1969 28–24 53.8% — 1,787 0 3
27 1970 13–13 50.0% — 1,636 0 0 1970 41–28 59.4% — 1,896 0 4
28 1971 4–9 30.8% — 1,542 0 0 1971 27–21 56.2% — 1,868 0 4
29 1972 6–12 33.3% — 1,513 0 0 1972 2–8 20.0% — 1,772 0 4
30 1973 2–13 13.3% #216 1,442 0 0 1973 1–6 14.3% #219 1,692 0 4
31 1974 0–4 0.0% #245 1,423 0 0 1974 3–5 37.5% #147 1,700 0 4
32 1975 2–1 66.7% #306 1,461 0 0 1975 1–4 20.0% #187 1,650 0 4
33 1976 1–1 50.0% #288 1,483 0 0 1976 1–9 10.0% #248 1,578 0 4
34 — — — — — — — 1977 1–2 33.3% #253 1,592 0 4
35 — — — — — — — 1978 0–1 0.0% #287 1,585 0 4
37 — — — — — — — 1980 3–2 60.0% — 1,626 0 4

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 Kukal Dennis Ralston
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 %
25 1968 8 7 15 53.3% 5 7 12 41.7% 0 1 1 0.0% 3 2 5 60.0% 1968 4 2 6 66.7% 5 3 8 62.5% 10 5 15 66.7% 29 15 44 65.9%
26 1969 5 4 9 55.6% 6 4 10 60.0% 1 2 3 33.3% 1 1 2 50.0% 1969 4 3 7 57.1% 4 6 10 40.0% 14 5 19 73.7% 6 10 16 37.5%
27 1970 1 1 2 50.0% 5 5 10 50.0% 4 5 9 44.4% 3 2 5 60.0% 1970 16 14 30 53.3% — — — — 14 7 21 66.7% 11 7 18 61.1%
28 1971 2 2 4 50.0% 2 5 7 28.6% 0 2 2 0.0% — — — — 1971 5 4 9 55.6% 10 6 16 62.5% 6 5 11 54.5% 6 6 12 50.0%
29 1972 0 1 1 0.0% 4 9 13 30.8% 2 2 4 50.0% — — — — 1972 0 6 6 0.0% — — — — — — — — 2 2 4 50.0%
30 1973 0 5 5 0.0% 1 7 8 12.5% — — — — 1 1 2 50.0% 1973 1 4 5 20.0% — — — — — — — — 0 2 2 0.0%
31 1974 0 2 2 0.0% 0 1 1 0.0% — — — — 0 1 1 0.0% 1974 3 3 6 50.0% — — — — 0 1 1 0.0% 0 1 1 0.0%
32 1975 — — — — — — — — 2 1 3 66.7% — — — — 1975 0 1 1 0.0% 0 2 2 0.0% — — — — 1 1 2 50.0%
33 1976 — — — — — — — — 1 1 2 50.0% — — — — 1976 1 4 5 20.0% — — — — — — — — 0 5 5 0.0%
34 — — — — — — — — — — — — — — — — — 1977 0 1 1 0.0% — — — — 1 1 2 50.0% — — — —
35 — — — — — — — — — — — — — — — — — 1978 — — — — — — — — — — — — 0 1 1 0.0%
37 — — — — — — — — — — — — — — — — — 1980 0 1 1 0.0% — — — — 3 1 4 75.0% — — — —
Career — 16 22 38 42.1% 23 38 61 37.7% 10 14 24 41.7% 8 7 15 53.3% — 34 43 77 44.2% 19 17 36 52.8% 48 25 73 65.8% 55 50 105 52.4%

Advanced Statistics Comparison by Age

Seasons are aligned by the age each player spent most of that calendar year. Metrics use eligible main-draw results; point statistics use matches with detailed data. 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 Kukal Dennis Ralston
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
25 1968 1532 112.5 — — — — +79 -53 — 50.0% +0.28 4–4 (50%) — — +0.30 1968 1694 112.7 — — — — +4 -104 +38 64.2% +1.56 11–5 (69%) — — +3.26
26 1969 1583 117.5 — — — — +94 -23 -92 50.8% +0.05 4–3 (57%) — — +1.26 1969 1788 133.1 — — — — -116 -165 +110 56.8% +0.27 7–12 (37%) 1–2 (33%) — -0.96
27 1970 1636 116.1 — — — — +91 -32 -116 49.4% +0.05 5–2 (71%) — — +1.97 1970 1897 144.3 — — — — -6 — +35 57.5% +0.56 13–8 (62%) 8–5 (62%) 106.0 -2.42
28 1971 1543 105.7 — — — — +115 +6 — 32.1% -1.32 0–2 1–1 — +0.70 1971 1869 145.4 — — — — +27 -114 -40 55.9% +0.35 10–9 (53%) 10–7 (59%) 103.0 -4.81
29 1972 1514 115.2 — — — — — +4 -1 37.3% -0.73 2–3 (40%) 1–1 — +0.68 1972 1772 103.2 — — — — -27 — — 31.6% -1.47 1–2 (33%) 1–0 — +0.82
30 1973 1442 102.3 — — — — +120 +1 — 22.9% -1.29 1–3 (25%) 1–6 (14%) 94.1 +0.60 1973 1693 110.4 — — — — -41 — — 20.0% -1.40 0–1 1–2 (33%) — -0.63
31 1974 1424 97.9 — — — — — — — 0.0% -4.50 — — — +0.21 1974 1700 123.4 — — — — -31 — — 38.9% -1.11 — 2–0 — -1.15
32 1975 1462 110.1 — — — — — — +90 62.5% +0.75 1–1 1–0 — +0.20 1975 1650 108.9 — — — — -4 — — 30.8% -1.46 1–1 3–1 (75%) — -0.29
33 1976 1484 110.7 — — — — — — — 50.0% -0.50 — — — +0.18 1976 1578 103.4 — — — — -37 — — 19.0% -2.62 1–2 (33%) 3–2 (60%) 99.7 -0.04
34 — — — — — — — — — — — — — — — — 1977 1593 106.1 — — — — — — — 45.5% -0.54 0–1 0–1 — -0.26
35 — — — — — — — — — — — — — — — — 1978 1586 102.9 — — — — — — — 0.0% -3.50 — — — -0.08
37 — — — — — — — — — — — — — — — — 1980 1626 122.5 — — — — — — +215 60.0% +0.40 — — — +0.01
Career — 1644 116.7 — — — — +93 -18 -55 44.1% -0.27 17–18 (49%) 4–8 (33%) 98.9 +4.69 — 1957 135.6 — — — — -19 -127 +55 54.5% +0.38 44–41 (52%) 29–20 (59%) 105.6 -2.32

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.