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

Greta Delport vs Joyce Williams H2H: 0-1

Joyce Williams holds a 1–0 lead over Greta Delport in their WTA head-to-head. Across 1 main-draw meeting, Joyce Williams leads 1–0 on hard courts. Most recently, Joyce Williams won the 1972 South African Open round of 64 4-6 6-0 6-0.

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

Greta Delport
RSA Age 81
H2H
0 – 1
1 main-draw meetings
Joyce Williams
GBR Age 82

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Joyce Williams 4-6 6-0 6-0 Greta Delport Match data Mar 29, 1972* R64 South African Open WTA 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
Greta Delport — — — 1,584 13 21 38.2% 0 0 0 0 0 0
Joyce Williams — — — 1,971 188 88 68.1% 0 0 0 0 10 10

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 Greta Delport Joyce Williams
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
23 1968 0–4 0.0% — 1,465 0 0 1968 35–20 63.6% — 1,627 0 1
24 1969 1–1 50.0% — 1,471 0 0 1969 36–20 64.3% — 1,790 0 2
25 1970 1–3 25.0% — 1,475 0 0 1970 46–17 73.0% — 1,860 0 5
26 1971 5–6 45.5% — 1,504 0 0 1971 23–12 65.7% — 1,916 0 6
27 1972 6–5 54.5% — 1,570 0 0 1972 30–8 78.9% — 1,939 0 8
28 1973 0–2 0.0% — 1,545 0 0 1973 5–4 55.6% — 1,866 0 8
29 — — — — — — — 1974 1–3 25.0% — 1,847 0 8
30 — — — — — — — 1975 5–1 83.3% — 1,863 0 10
31 — — — — — — — 1976 0–1 0.0% — 1,841 0 10
34 — — — — — — — 1979 7–2 77.8% — 1,824 0 10

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 Greta Delport Joyce Williams
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 0 3 3 0.0% 0 1 1 0.0% — — — — — — — — 1968 2 1 3 66.7% 8 5 13 61.5% 13 8 21 61.9% 12 6 18 66.7%
24 1969 1 1 2 50.0% — — — — — — — — — — — — 1969 1 1 2 50.0% 9 2 11 81.8% 16 10 26 61.5% 10 7 17 58.8%
25 1970 1 3 4 25.0% — — — — — — — — — — — — 1970 2 1 3 66.7% 19 4 23 82.6% 10 5 15 66.7% 15 7 22 68.2%
26 1971 5 6 11 45.5% — — — — — — — — — — — — 1971 — — — — 9 5 14 64.3% 14 7 21 66.7% — — — —
27 1972 6 5 11 54.5% — — — — — — — — — — — — 1972 2 1 3 66.7% 11 3 14 78.6% 13 3 16 81.3% 4 1 5 80.0%
28 1973 0 2 2 0.0% — — — — — — — — — — — — 1973 — — — — 3 1 4 75.0% 1 2 3 33.3% 1 1 2 50.0%
29 — — — — — — — — — — — — — — — — — 1974 — — — — — — — — 0 1 1 0.0% 1 2 3 33.3%
30 — — — — — — — — — — — — — — — — — 1975 — — — — — — — — 1 1 2 50.0% — — — —
31 — — — — — — — — — — — — — — — — — 1976 — — — — — — — — 0 1 1 0.0% — — — —
34 — — — — — — — — — — — — — — — — — 1979 — — — — 4 1 5 80.0% — — — — — — — —
Career — 13 20 33 39.4% 0 1 1 0.0% — — — — — — — — — 7 4 11 63.6% 63 21 84 75.0% 68 38 106 64.2% 43 24 67 64.2%

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 Greta Delport Joyce Williams
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 1465 99.3 — — — — -10 — — 0.0% -2.83 — — — -0.12 1968 1627 120.2 — — — — +50 -54 +16 60.5% +0.82 7–4 (64%) — — -0.49
24 1969 1471 98.4 — — — — — — — 40.0% -0.60 1–0 — — +0.02 1969 1791 139.2 — — — — -16 -45 -22 64.0% +1.31 3–5 (38%) — — -2.77
25 1970 1475 103.1 — — — — -9 — — 30.0% -1.30 1–1 — — -0.11 1970 1860 148.3 — — — — +2 +76 -31 70.6% +1.70 6–6 (50%) 0–1 — -0.69
26 1971 1505 106.6 — — — — +23 — — 47.8% -0.09 0–1 — — +1.97 1971 1916 145.9 — — — — — -2 +19 63.8% +1.09 5–5 (50%) 3–1 (75%) 100.6 -3.52
27 1972 1571 113.0 — — — — +32 — — 53.8% +0.04 2–2 (50%) 1–1 — +0.80 1972 1940 143.0 — — — — -65 +57 +25 74.4% +1.87 6–4 (60%) 3–0 (100%) 102.7 +0.35
28 1973 1545 98.1 — — — — — — — 33.3% -1.84 0–2 — — +0.33 1973 1866 117.7 — — — — — +112 +57 59.1% +1.18 1–3 (25%) 1–1 — +0.76
29 — — — — — — — — — — — — — — — — 1974 1848 116.4 — — — — -33 — — 25.0% -0.38 — 0–2 — -0.62
30 — — — — — — — — — — — — — — — — 1975 1864 125.8 — — — — — — — 76.9% +3.00 1–0 — — +0.14
31 — — — — — — — — — — — — — — — — 1976 1841 99.3 — — — — — — — 33.3% -0.33 0–1 — — +0.01
34 — — — — — — — — — — — — — — — — 1979 1825 119.8 — — — — — +146 — 70.0% +1.70 2–0 2–1 (67%) — +1.13
Career — 1585 107.6 — — — — +19 — — 42.1% -0.59 4–6 (40%) 1–1 — +8.76 — 1971 143.4 — — — — +2 +30 +3 65.9% +1.37 31–28 (53%) 9–6 (60%) 101.6 -2.10

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.