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

Graham Stilwell vs Keith Diepraam H2H: 0-1

Keith Diepraam holds a 1–0 lead over Graham Stilwell 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 32 6-4 8-10 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.

Graham Stilwell
GBR Right-Handed 173 cm / 5'8"
H2H
0 – 1
1 main-draw meetings
Keith Diepraam
RSA Age 84 Right-Handed

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Keith Diepraam 6-4 8-10 6-4 Graham Stilwell Match data Apr 9, 1970* R32 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
Graham Stilwell #62 #62 0 1,731 96 180 34.8% 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 Graham Stilwell Keith Diepraam
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
22 1968 19–15 55.9% — 1,608 0 0 — — — — — — —
23 1969 11–6 64.7% — 1,723 0 0 — — — — — — —
24 1970 15–28 34.9% — 1,618 0 0 — — — — — — —
25 1971 9–32 22.0% — 1,544 0 0 — — — — — — —
26 1972 10–27 27.0% — 1,559 0 0 — — — — — — —
27 1973 15–33 31.2% #109 1,574 0 0 — — — — — — —
28 1974 3–14 17.6% #128 1,496 0 0 — — — — — — —
29 1975 14–25 35.9% #83 1,613 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 Graham Stilwell 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 %
22 1968 3 2 5 60.0% 0 3 3 0.0% 16 8 24 66.7% 0 2 2 0.0% — — — — — — — — — — — — — — — — —
23 1969 — — — — 5 2 7 71.4% 3 2 5 60.0% 3 2 5 60.0% — — — — — — — — — — — — — — — — —
24 1970 5 7 12 41.7% 5 7 12 41.7% 4 7 11 36.4% 1 7 8 12.5% — — — — — — — — — — — — — — — — —
25 1971 2 9 11 18.2% 4 10 14 28.6% 2 6 8 25.0% 1 7 8 12.5% — — — — — — — — — — — — — — — — —
26 1972 2 9 11 18.2% 3 4 7 42.9% — — — — 5 14 19 26.3% 1969 1 2 3 33.3% — — — — — — — — — — — —
27 1973 5 6 11 45.5% 4 11 15 26.7% 2 3 5 40.0% 4 13 17 23.5% 1970 3 1 4 75.0% 1 2 3 33.3% 2 5 7 28.6% — — — —
28 1974 0 2 2 0.0% 0 5 5 0.0% 0 1 1 0.0% 3 6 9 33.3% — — — — — — — — — — — — — — — — —
29 1975 2 4 6 33.3% 5 12 17 29.4% 3 1 4 75.0% 4 8 12 33.3% — — — — — — — — — — — — — — — — —
Career — 19 39 58 32.8% 26 54 80 32.5% 30 28 58 51.7% 21 59 80 26.2% — 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 Graham Stilwell 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
22 1968 1609 114.5 — — — — -44 — +72 55.8% +0.51 7–6 (54%) — — +1.35 — — — — — — — — — — — — — — — —
23 1969 1724 128.1 — — — — -62 -101 -15 62.1% +0.90 4–4 (50%) — — -0.21 — — — — — — — — — — — — — — — —
24 1970 1619 122.5 — — — — -16 -25 -2 33.9% -1.05 4–2 (67%) — — -1.70 — — — — — — — — — — — — — — — —
25 1971 1544 122.9 — — — — -58 +45 +4 26.8% -1.30 3–5 (38%) 3–8 (27%) 96.9 -2.58 — — — — — — — — — — — — — — — —
26 1972 1559 133.2 — — — — -76 +40 — 30.0% -1.21 2–6 (25%) 3–7 (30%) 97.4 -2.33 1969 1493 102.4 — — — — +49 — — 45.5% -0.18 — — — +0.05
27 1973 1574 128.6 — — — — -16 -40 -18 33.6% -0.86 7–8 (47%) 0–12 (0%) 94.9 -0.93 1970 1522 105.2 — — — — +69 -21 -23 45.0% -0.70 2–3 (40%) — — -0.17
28 1974 1496 115.8 — — — — +31 -36 — 26.8% -1.22 1–6 (14%) 3–4 (43%) 94.3 -0.16 — — — — — — — — — — — — — — — —
29 1975 1613 134.2 — — — — -31 -144 +20 41.5% -0.49 5–6 (45%) 3–5 (38%) 102.6 +0.47 — — — — — — — — — — — — — — — —
Career — 1732 130.7 — — — — -36 -43 +29 38.6% -0.61 33–43 (43%) 12–36 (25%) 93.8 -2.25 — 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.