H2H data updated: 2026-10-28 00:00 UTC

Diane Desfor vs Marjorie Blackwood H2H: 1-0

Diane Desfor holds a 1–0 lead over Marjorie Blackwood in their WTA head-to-head. Across 1 main-draw meeting, Diane Desfor leads 1–0 on grass. Most recently, Diane Desfor won the 1981 Surbiton quarterfinal 7-5 6-3.

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Diane Desfor
USA Age 71 Right-Handed 165 cm / 5'5"
H2H
1 – 0
1 main-draw meetings
Marjorie Blackwood
CAN Age 69

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Diane Desfor 7-5 6-3 Marjorie Blackwood Match data Jun 13, 1981* QF Surbiton WTA 250 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
Diane Desfor — — — 1,773 70 90 43.8% 0 0 0 0 2 2
Marjorie Blackwood — — — 1,645 27 51 34.6% 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 Diane Desfor Marjorie Blackwood
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
17 — — — — — — — 1974 1–2 33.3% — 1,492 0 0
19 1974 1–2 33.3% — 1,482 0 0 1976 0–2 0.0% — 1,483 0 0
20 1975 5–3 62.5% — 1,524 0 0 1977 3–3 50.0% — 1,496 0 0
21 1976 4–1 80.0% — 1,580 0 1 1978 2–11 15.4% — 1,466 0 0
22 1977 1–1 50.0% — 1,567 0 1 1979 1–5 16.7% — 1,458 0 0
23 1978 14–17 45.2% — 1,640 0 1 1980 1–4 20.0% — 1,470 0 0
24 1979 15–22 40.5% — 1,689 0 1 1981 15–17 46.9% — 1,625 0 0
25 1980 19–22 46.3% — 1,648 0 1 1982 4–6 40.0% — 1,621 0 0
26 1981 8–17 32.0% — 1,614 0 1 — — — — — — —
27 1982 3–5 37.5% — 1,586 0 2 — — — — — — —
28 — — — — — — — 1985 0–1 0.0% — 1,600 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 Diane Desfor Marjorie Blackwood
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 — — — — — — — — — — — — — — — — — 1974 — — — — — — — — 1 1 2 50.0% 0 1 1 0.0%
19 1974 — — — — 1 1 2 50.0% 0 1 1 0.0% — — — — 1976 — — — — 0 2 2 0.0% — — — — — — — —
20 1975 — — — — — — — — 2 1 3 66.7% — — — — 1977 — — — — 0 1 1 0.0% 3 2 5 60.0% — — — —
21 1976 — — — — 0 1 1 0.0% — — — — — — — — 1978 0 2 2 0.0% 0 1 1 0.0% 2 7 9 22.2% — — — —
22 — — — — — — — — — — — — — — — — — 1979 0 2 2 0.0% — — — — 0 2 2 0.0% 1 1 2 50.0%
23 1978 7 6 13 53.8% 2 5 7 28.6% 2 4 6 33.3% 3 2 5 60.0% 1980 1 1 2 50.0% 0 1 1 0.0% 0 2 2 0.0% — — — —
24 1979 5 6 11 45.5% 1 3 4 25.0% 6 7 13 46.2% 3 6 9 33.3% 1981 1 4 5 20.0% 4 4 8 50.0% 10 7 17 58.8% 0 2 2 0.0%
25 1980 4 9 13 30.8% 1 2 3 33.3% 12 7 19 63.2% 2 4 6 33.3% 1982 0 2 2 0.0% — — — — 4 4 8 50.0% — — — —
26 1981 1 4 5 20.0% 0 3 3 0.0% 7 7 14 50.0% 0 3 3 0.0% — — — — — — — — — — — — — — — — —
27 1982 2 2 4 50.0% 0 1 1 0.0% 0 2 2 0.0% — — — — — — — — — — — — — — — — — — — — —
28 — — — — — — — — — — — — — — — — — 1985 0 1 1 0.0% — — — — — — — — — — — —
Career — 19 27 46 41.3% 5 16 21 23.8% 29 29 58 50.0% 8 15 23 34.8% — 2 12 14 14.3% 4 9 13 30.8% 20 25 45 44.4% 1 4 5 20.0%

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 Diane Desfor Marjorie Blackwood
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 — — — — — — — — — — — — — — — — 1974 1493 95.7 — — — — — — — 33.3% -2.83 — — — +0.41
19 1974 1483 94.1 — — — — — — — 28.6% -1.57 1–0 0–1 — +0.60 1976 1483 106.0 — — — — — — — 0.0% -3.00 — 0–1 — -0.26
20 1975 1525 105.5 — — — — — — +34 55.0% +0.05 3–1 (75%) 2–0 — +1.01 1977 1496 103.3 — — — — — — +62 40.0% -0.60 — — — +0.70
21 1976 1580 118.1 — — — — — — — 72.7% +1.91 1–0 1–0 — +0.02 1978 1466 96.4 — — — — — — +21 20.7% -2.24 1–2 (33%) 1–1 — -0.27
22 1977 1568 99.4 — — — — — — — 60.0% +1.00 0–1 — — +0.32 1979 1459 106.8 — — — — +100 — — 15.4% -1.85 1–0 0–3 (0%) — +0.15
23 1978 1641 122.7 — — — — +29 -130 -96 44.6% -0.07 7–7 (50%) 3–6 (33%) 98.8 +0.28 1980 1471 114.2 — — — — — — — 22.2% -2.44 1–0 — — -0.41
24 1979 1690 130.1 — — — — -36 -167 -74 40.2% -0.57 5–5 (50%) 2–6 (25%) 98.9 +0.18 1981 1625 123.6 — — — — -88 -63 +27 48.1% -0.19 6–7 (46%) 3–2 (60%) 102.5 +1.77
25 1980 1648 126.0 — — — — -117 -123 +77 46.3% -0.19 7–8 (47%) 5–3 (63%) 102.6 -0.83 1982 1622 112.4 — — — — — — +75 40.0% -0.75 2–0 2–2 (50%) — +0.16
26 1981 1614 112.9 — — — — -85 -99 +82 33.3% -1.11 2–4 (33%) — — -1.05 — — — — — — — — — — — — — — — —
27 1982 1587 105.7 — — — — -75 — — 42.1% +0.32 1–2 (33%) 0–2 — +0.81 — — — — — — — — — — — — — — — —
28 — — — — — — — — — — — — — — — — 1985 1600 97.2 — — — — — — — 0.0% -3.00 — — — +0.26
Career — 1773 125.1 — — — — -49 -132 +21 43.6% -0.29 27–28 (49%) 13–18 (42%) 99.3 +0.86 — 1645 115.7 — — — — -20 -63 +40 35.9% -1.07 11–9 (55%) 6–9 (40%) 102.6 +3.26

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.