H2H data updated: 2026-08-31 00:00 UTC

Helen Amos vs Stephanie Defina H2H: 0-1

Stephanie Defina holds a 1–0 lead over Helen Amos in their WTA head-to-head. Across 1 main-draw meeting, Stephanie Defina leads 1–0 on clay. Most recently, Stephanie Defina won the 1970 Dutch Open round of 16 6-2 6-1.

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Helen Amos
AUS Age 78 Right-Handed 183 cm / 6'0"
H2H
0 – 1
1 main draw meetings
Stephanie Defina
USA Age 80

H2H Match Log

WinnerScoreLoserMatch DataDateRoundTournamentCategorySurface
Stephanie Defina 6-2 6-1 Helen Amos Match data Jul 31, 1970* R16 Dutch Open WTA 250 Clay

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
Helen Amos — — — 1,588 42 60 41.2% 0 0 0 0 0 0
Stephanie Defina — — — 1,818 93 62 60.0% 0 1 0 0 6 7

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 Helen Amos Stephanie Defina
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
20 1968 11–19 36.7% — 1,484 0 0 — — — — — — —
21 1969 10–14 41.7% — 1,509 0 0 — — — — — — —
22 1970 8–13 38.1% — 1,534 0 0 1968 33–22 60.0% — 1,678 0 1
23 1971 9–10 47.4% — 1,541 0 0 1969 25–9 73.5% — 1,760 0 5
24 1972 2–3 40.0% — 1,548 0 0 1970 33–17 66.0% — 1,788 0 7
25 1973 2–1 66.7% — 1,570 0 0 1971 1–9 10.0% — 1,706 0 7
26 — — — — — — — 1972 1–2 33.3% — 1,713 0 7
27 — — — — — — — 1973 0–2 0.0% — 1,685 0 7
28 — — — — — — — 1974 0–1 0.0% — 1,674 0 7

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 Helen Amos Stephanie Defina
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 %
20 1968 — — — — 7 14 21 33.3% 4 5 9 44.4% — — — — — — — — — — — — — — — — — — — — —
21 1969 1 4 5 20.0% 4 4 8 50.0% 5 6 11 45.5% — — — — — — — — — — — — — — — — — — — — —
22 1970 3 3 6 50.0% 0 5 5 0.0% 4 4 8 50.0% — — — — 1968 4 6 10 40.0% 20 7 27 74.1% 7 7 14 50.0% 2 2 4 50.0%
23 1971 5 2 7 71.4% 1 4 5 20.0% 3 3 6 50.0% 0 1 1 0.0% 1969 1 1 2 50.0% 17 5 22 77.3% — — — — 6 2 8 75.0%
24 1972 — — — — 1 2 3 33.3% 1 1 2 50.0% — — — — 1970 4 3 7 57.1% 26 9 35 74.3% 1 2 3 33.3% 2 2 4 50.0%
25 1973 — — — — — — — — — — — — 2 1 3 66.7% 1971 — — — — 0 2 2 0.0% 0 1 1 0.0% 1 6 7 14.3%
26 — — — — — — — — — — — — — — — — — 1972 1 1 2 50.0% 0 1 1 0.0% — — — — — — — —
27 — — — — — — — — — — — — — — — — — 1973 0 1 1 0.0% — — — — 0 1 1 0.0% — — — —
28 — — — — — — — — — — — — — — — — — 1974 — — — — — — — — — — — — 0 1 1 0.0%
Career — 9 9 18 50.0% 13 29 42 31.0% 17 19 36 47.2% 2 2 4 50.0% — 10 12 22 45.5% 63 24 87 72.4% 8 11 19 42.1% 11 13 24 45.8%

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 Helen Amos Stephanie Defina
Yr Elo P+ Serve+ Return+ PD TPW% Hard Elo Clay Elo Grass Elo Set Win % Set Margin Dec. Set Tiebreak Schedule Yr Elo P+ Serve+ Return+ PD TPW% Hard Elo Clay Elo Grass Elo Set Win % Set Margin Dec. Set Tiebreak Schedule
20 1968 1484 98.3 — — — — — -16 +20 37.9% -0.95 4–2 (67%) — -0.17 — — — — — — — — — — — — — — —
21 1969 1510 110.1 — — — — -30 -6 +22 46.2% -0.46 2–4 (33%) — +1.10 — — — — — — — — — — — — — — —
22 1970 1534 111.0 — — — — +1 -72 +23 37.8% -0.89 2–1 (67%) — +0.45 1968 1678 117.2 — — — — -196 +95 -126 56.8% +0.45 13–9 (59%) — -1.42
23 1971 1542 107.1 — — — — +69 -120 +33 46.5% -0.09 3–2 (60%) — +3.19 1969 1761 138.3 — — — — -91 +61 — 71.6% +1.86 3–3 (50%) — -0.02
24 1972 1549 108.6 — — — — — -109 — 40.0% -0.80 — — +0.34 1970 1789 133.4 — — — — -88 +98 -231 62.9% +1.05 7–4 (64%) 1–0 +0.43
25 1973 1571 103.3 — — — — +69 — — 57.1% 0.00 1–0 — +0.91 1971 1707 111.7 — — — — -58 — — 10.0% -2.90 — — -0.85
26 — — — — — — — — — — — — — — — 1972 1714 107.0 — — — — — — — 33.3% -1.83 — 1–0 -0.94
27 — — — — — — — — — — — — — — — 1973 1686 100.5 — — — — — — — 0.0% -3.50 — — -0.42
28 — — — — — — — — — — — — — — — 1974 1675 102.4 — — — — — — — 0.0% -1.50 — 0–1 -0.06
Career — 1588 108.5 — — — — +28 -40 +24 42.3% -0.61 12–9 (57%) — +5.88 — 1819 129.6 — — — — -120 +87 -145 57.7% +0.65 23–16 (59%) 2–1 (67%) -2.14

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.