H2H data updated: 2026-09-12 00:00 UTC

Alvin Gardiner vs Keith Diepraam H2H: 0-1

Keith Diepraam holds a 1–0 lead over Alvin Gardiner in their ATP head-to-head. Across 1 main-draw meeting, Keith Diepraam leads 1–0 on hard courts. Most recently, Keith Diepraam won the 1970 Durban round of 64 6-3 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.

Alvin Gardiner
AUS Age 75 Right-Handed
H2H
0 – 1
1 main-draw meetings
Keith Diepraam
RSA Age 84 Right-Handed

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Keith Diepraam 6-3 6-4 Alvin Gardiner Match data Apr 8, 1970* R64 Durban 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
Alvin Gardiner #831 #77 0 1,524 43 100 30.1% 0 0 0 0 0 0
Keith Diepraam — — — 1,544 — — — 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 Alvin Gardiner Keith Diepraam
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
17 1968 1–2 33.3% — 1,490 0 0 — — — — — — —
18 1969 7–7 50.0% — 1,507 0 0 — — — — — — —
19 1970 4–8 33.3% — 1,448 0 0 — — — — — — —
20 1971 6–7 46.2% — 1,467 0 0 — — — — — — —
21 1972 2–7 22.2% — 1,374 0 0 — — — — — — —
24 1975 4–8 33.3% #150 1,411 0 0 — — — — — — —
25 1976 5–15 25.0% #159 1,408 0 0 — — — — — — —
26 1977 3–11 21.4% #167 1,397 0 0 — — — — — — —
27 1978 5–7 41.7% #90 1,463 0 0 — — — — — — —
28 1979 4–21 16.0% #234 1,403 0 0 — — — — — — —
29 1980 2–5 28.6% #309 1,391 0 0 — — — — — — —
30 1981 0–2 0.0% — 1,374 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 Alvin Gardiner Keith Diepraam
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 1968 — — — — — — — — 1 2 3 33.3% — — — — — — — — — — — — — — — — — — — — —
18 1969 1 1 2 50.0% 3 3 6 50.0% 3 3 6 50.0% — — — — — — — — — — — — — — — — — — — — —
19 1970 1 2 3 33.3% 1 1 2 50.0% 2 5 7 28.6% — — — — — — — — — — — — — — — — — — — — —
20 1971 2 3 5 40.0% — — — — 4 4 8 50.0% — — — — — — — — — — — — — — — — — — — — —
21 1972 0 1 1 0.0% — — — — 2 6 8 25.0% — — — — — — — — — — — — — — — — — — — — —
24 1975 3 2 5 60.0% 1 4 5 20.0% 0 2 2 0.0% — — — — — — — — — — — — — — — — — — — — —
25 1976 0 4 4 0.0% 5 10 15 33.3% 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — —
26 1977 0 1 1 0.0% 2 4 6 33.3% 1 6 7 14.3% — — — — 1969 1 2 3 33.3% — — — — — — — — — — — —
27 1978 2 2 4 50.0% 1 2 3 33.3% 0 2 2 0.0% 2 1 3 66.7% 1970 3 1 4 75.0% 1 2 3 33.3% 2 5 7 28.6% — — — —
28 1979 1 6 7 14.3% 1 6 7 14.3% 1 6 7 14.3% 1 3 4 25.0% — — — — — — — — — — — — — — — — —
29 1980 1 1 2 50.0% 0 2 2 0.0% 1 2 3 33.3% — — — — — — — — — — — — — — — — — — — — —
30 1981 0 1 1 0.0% 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — — — — — —
Career — 11 24 35 31.4% 14 33 47 29.8% 15 39 54 27.8% 3 4 7 42.9% — 4 3 7 57.1% 1 2 3 33.3% 2 5 7 28.6% — — — —

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 Alvin Gardiner Keith Diepraam
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 1968 1491 100.0 — — — — — — +18 44.4% -1.00 0–1 — — +0.04 — — — — — — — — — — — — — — — —
18 1969 1507 106.7 — — — — — +5 +22 45.2% -0.29 — — — +0.68 — — — — — — — — — — — — — — — —
19 1970 1449 93.8 — — — — +117 — +13 33.3% -0.79 1–0 — — +1.64 — — — — — — — — — — — — — — — —
20 1971 1468 101.7 — — — — +39 — +39 44.1% -0.44 1–1 4–3 (57%) — +1.04 — — — — — — — — — — — — — — — —
21 1972 1375 96.3 — — — — — — +41 21.7% -1.35 0–2 0–4 (0%) — +0.94 — — — — — — — — — — — — — — — —
24 1975 1411 110.4 — — — — +108 +72 — 40.0% -0.64 0–2 — — +1.08 — — — — — — — — — — — — — — — —
25 1976 1409 97.4 — — — — +45 +51 — 26.7% -1.82 2–1 (67%) 1–0 — +1.81 — — — — — — — — — — — — — — — —
26 1977 1397 110.4 — — — — — +80 -94 23.5% -1.56 0–1 0–2 — +0.63 1969 1493 102.4 — — — — +49 — — 45.5% -0.18 — — — +0.05
27 1978 1464 110.1 — — — — +69 +26 — 37.5% -0.97 5–1 (83%) 3–0 (100%) — +0.64 1970 1522 105.2 — — — — +69 -21 -23 45.0% -0.70 2–3 (40%) — — -0.17
28 1979 1403 107.6 — — — — +67 +28 -111 15.8% -2.05 1–3 (25%) 0–5 (0%) 94.7 +1.40 — — — — — — — — — — — — — — — —
29 1980 1392 101.4 — — — — — — -66 35.3% -1.12 1–4 (20%) 0–1 — +1.02 — — — — — — — — — — — — — — — —
30 1981 1374 98.4 — — — — — — — 0.0% -2.00 — — — +0.21 — — — — — — — — — — — — — — — —
Career — 1524 105.5 — — — — +71 +45 -15 30.8% -1.21 11–16 (41%) 8–15 (35%) 94.6 +7.89 — 1544 104.2 — — — — +60 -21 -23 45.1% -0.59 2–3 (40%) — — -0.75

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.