H2H data updated: 2026-09-04 00:00 UTC

Colin Dibley vs Dennis Ralston H2H: 3-0

Colin Dibley holds a 3–0 lead over Dennis Ralston in their ATP head-to-head. Across 3 main-draw meetings, Colin Dibley leads 2–0 on hard courts and 1–0 on grass. Most recently, Colin Dibley won the 1976 Miami Open round of 16 6-7 7-5 7-6.

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Colin Dibley
AUS Age 81 Right-Handed 188 cm / 6'2"
H2H
3 – 0
3 main draw meetings
Dennis Ralston
USA Right-Handed 188 cm / 6'2"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Colin Dibley 6-7 7-5 7-6 Dennis Ralston Match data Feb 6, 1976* R16 Miami Open ATP 250 Hard
Colin Dibley 6-4 4-6 7-6 Dennis Ralston Match data May 17, 1973* R32 Las Vegas ATP 250 Hard
Colin Dibley 3-6 8-9 6-3 6-0 10-8 Dennis Ralston Match data Jun 27, 1971* R32 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
Colin Dibley #240 #33 0 1,877 341 310 52.4% 0 0 0 0 5 5
Dennis Ralston #287 #115 0 1,958 156 135 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 Colin Dibley Dennis Ralston
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
23 1968 3–2 60.0% — 1,521 0 0 — — — — — — —
25 1970 7–10 41.2% — 1,526 0 0 1968 48–25 65.8% — 1,694 0 3
26 1971 41–21 66.1% — 1,753 0 1 1969 28–24 53.8% — 1,787 0 3
27 1972 52–30 63.4% — 1,819 0 2 1970 41–28 59.4% — 1,897 0 4
28 1973 35–31 53.0% #39 1,694 0 4 1971 27–21 56.2% — 1,870 0 4
29 1974 35–35 50.0% #87 1,692 0 4 1972 2–8 20.0% — 1,773 0 4
30 1975 18–28 39.1% #94 1,624 0 4 1973 1–6 14.3% #219 1,693 0 4
31 1976 39–40 49.4% #85 1,636 0 4 1974 3–5 37.5% #147 1,700 0 4
32 1977 52–33 61.2% #35 1,780 0 4 1975 1–4 20.0% #187 1,651 0 4
33 1978 18–28 39.1% #115 1,629 0 4 1976 1–9 10.0% #248 1,578 0 4
34 1979 20–22 47.6% #116 1,700 0 4 1977 1–2 33.3% #253 1,593 0 4
35 1980 18–23 43.9% #57 1,651 0 5 1978 0–1 0.0% #287 1,586 0 4
36 1981 3–7 30.0% #99 1,633 0 5 — — — — — — —
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 Colin Dibley 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 %
23 1968 — — — — 2 1 3 66.7% 1 1 2 50.0% — — — — — — — — — — — — — — — — — — — — —
25 1970 0 2 2 0.0% 0 2 2 0.0% 7 6 13 53.8% — — — — 1968 4 2 6 66.7% 5 3 8 62.5% 10 5 15 66.7% 29 15 44 65.9%
26 1971 14 9 23 60.9% 8 6 14 57.1% 19 6 25 76.0% — — — — 1969 4 3 7 57.1% 4 6 10 40.0% 14 5 19 73.7% 6 10 16 37.5%
27 1972 9 10 19 47.4% 14 5 19 73.7% 20 9 29 69.0% 9 6 15 60.0% 1970 16 14 30 53.3% — — — — 14 7 21 66.7% 11 7 18 61.1%
28 1973 14 9 23 60.9% 7 9 16 43.8% 9 6 15 60.0% 5 7 12 41.7% 1971 5 4 9 55.6% 10 6 16 62.5% 6 5 11 54.5% 6 6 12 50.0%
29 1974 6 11 17 35.3% 6 7 13 46.2% 17 9 26 65.4% 6 8 14 42.9% 1972 0 6 6 0.0% — — — — — — — — 2 2 4 50.0%
30 1975 2 9 11 18.2% 12 11 23 52.2% 2 4 6 33.3% 2 4 6 33.3% 1973 1 4 5 20.0% — — — — — — — — 0 2 2 0.0%
31 1976 7 7 14 50.0% 12 19 31 38.7% 5 5 10 50.0% 15 9 24 62.5% 1974 3 3 6 50.0% — — — — 0 1 1 0.0% 0 1 1 0.0%
32 1977 16 10 26 61.5% 11 9 20 55.0% 15 8 23 65.2% 10 6 16 62.5% 1975 0 1 1 0.0% 0 2 2 0.0% — — — — 1 1 2 50.0%
33 1978 5 7 12 41.7% 5 6 11 45.5% 5 6 11 45.5% 3 9 12 25.0% 1976 1 4 5 20.0% — — — — — — — — 0 5 5 0.0%
34 1979 9 7 16 56.3% 2 3 5 40.0% 9 7 16 56.3% 0 5 5 0.0% 1977 0 1 1 0.0% — — — — 1 1 2 50.0% — — — —
35 1980 2 7 9 22.2% 0 2 2 0.0% 10 6 16 62.5% 6 8 14 42.9% 1978 — — — — — — — — — — — — 0 1 1 0.0%
36 1981 2 3 5 40.0% 0 1 1 0.0% 0 1 1 0.0% 1 2 3 33.3% — — — — — — — — — — — — — — — — —
37 — — — — — — — — — — — — — — — — — 1980 0 1 1 0.0% — — — — 3 1 4 75.0% — — — —
Career — 86 91 177 48.6% 79 81 160 49.4% 119 74 193 61.7% 57 64 121 47.1% — 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 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 Colin Dibley 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
23 1968 1521 100.4 — — — — — +15 — 50.0% +0.07 3–1 (75%) — — -0.01 — — — — — — — — — — — — — — — —
25 1970 1527 119.6 — — — — — — +43 41.3% -0.13 1–2 (33%) 2–1 (67%) 100.1 +0.99 1968 1694 112.7 — — — — +4 -104 +39 64.2% +1.56 11–5 (69%) — — +3.26
26 1971 1753 136.2 — — — — -77 -90 +64 64.2% +0.99 7–6 (54%) 11–7 (61%) 106.7 +3.94 1969 1788 133.1 — — — — -116 -165 +110 56.8% +0.27 7–12 (37%) 1–2 (33%) — -0.96
27 1972 1820 133.4 — — — — -107 +19 +44 61.8% +0.85 10–11 (48%) 9–12 (43%) 95.0 +4.65 1970 1898 144.3 — — — — -6 — +36 57.5% +0.56 13–8 (62%) 8–5 (62%) 106.0 -2.41
28 1973 1694 131.3 — — — — -6 +47 +143 52.4% +0.23 11–11 (50%) 15–16 (48%) 96.7 +1.46 1971 1870 145.6 — — — — +26 -115 -40 55.9% +0.35 10–9 (53%) 10–7 (59%) 103.0 -4.83
29 1974 1692 131.7 — — — — -39 +7 +124 49.4% +0.02 13–12 (52%) 14–11 (56%) 101.3 +2.15 1972 1773 103.2 — — — — -28 — — 31.6% -1.47 1–2 (33%) 1–0 — +0.82
30 1975 1624 129.4 — — — — -25 +67 +117 38.1% -0.72 7–2 (78%) 3–9 (25%) 99.6 -1.23 1973 1693 110.4 — — — — -41 — — 20.0% -1.40 0–1 1–2 (33%) — -0.63
31 1976 1637 139.9 — — — — +133 -89 +109 48.1% +0.14 14–12 (54%) 12–17 (41%) 97.7 +4.03 1974 1701 123.5 — — — — -32 — — 38.9% -1.11 — 2–0 — -1.16
32 1977 1780 143.5 — — — — +35 -122 +37 56.9% +0.58 18–9 (67%) 14–13 (52%) 106.4 +0.53 1975 1651 108.9 — — — — -3 — — 30.8% -1.46 1–1 3–1 (75%) — -0.29
33 1978 1630 137.5 — — — — +25 +44 +130 40.0% -0.38 6–8 (43%) 4–15 (21%) 89.4 -1.58 1976 1579 103.5 — — — — -38 — — 19.0% -2.62 1–2 (33%) 3–2 (60%) 99.7 -0.04
34 1979 1700 131.0 — — — — -66 -72 +117 48.6% +0.03 6–7 (46%) 10–12 (45%) 99.9 +1.79 1977 1593 106.1 — — — — — — — 45.5% -0.54 0–1 0–1 — -0.26
35 1980 1651 129.6 — — — — -49 — +147 48.6% -0.15 4–10 (29%) 6–4 (60%) 93.6 +0.75 1978 1586 102.9 — — — — — — — 0.0% -3.50 — — — -0.08
36 1981 1633 118.6 — — — — -7 — — 30.4% -1.13 2–1 (67%) 2–3 (40%) 103.0 -0.30 — — — — — — — — — — — — — — — —
37 — — — — — — — — — — — — — — — — 1980 1626 122.5 — — — — — — +215 60.0% +0.40 — — — +0.01
Career — 1878 138.6 — — — — -9 -23 +90 51.8% +0.23 102–92 (53%) 102–120 (46%) 97.5 +2.65 — 1958 135.6 — — — — -19 -127 +55 54.5% +0.38 44–41 (52%) 29–20 (59%) 105.6 -2.33

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.