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

Helga Masthoff vs J Couwes H2H: 1-0 (incl. walkovers)

Helga Masthoff vs J Couwes: 0–0 excluding walkovers; 1–0 including 1 walkover. Across 1 main-draw results including walkovers, Helga Masthoff leads 1–0 on clay. Most recently, Helga Masthoff won the 1970 Nice Lawn Club round of 16 W/O.

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Helga Masthoff
FRG Age 84 Right-Handed
H2H including walkovers
1 – 0
1 main-draw results
J Couwes

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Helga Masthoff (w/o) J Couwes Match data Apr 10, 1970* R16 Nice Lawn Club 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
Helga Masthoff — — — 2,113 391 115 77.3% 0 0 0 4 46 50
J Couwes — — — — 0 1 0.0% 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.

Helga Masthoff J Couwes
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
1968 29–13 69.0% — 1,730 0 1 1970 0–1 0.0% — — 0 0
1969 45–13 77.6% — 1,906 0 10 — — — — — — —
1970 53–12 81.5% — 2,047 0 15 — — — — — — —
1971 42–9 82.4% — 2,084 0 23 — — — — — — —
1972 29–12 70.7% — 2,023 0 27 — — — — — — —
1973 40–13 75.5% — 2,087 0 30 — — — — — — —
1974 27–10 73.0% — 2,019 0 33 — — — — — — —
1975 25–8 75.8% — 1,998 0 37 — — — — — — —
1976 34–8 81.0% — 1,950 0 42 — — — — — — —
1977 18–4 81.8% — 1,941 0 45 — — — — — — —
1978 13–5 72.2% — 1,895 0 45 — — — — — — —
1979 10–1 90.9% — 1,930 0 48 — — — — — — —
1980 26–7 78.8% — 1,873 0 50 — — — — — — —

Surface Results by Career Season

Rows are aligned in career order because complete birth data is unavailable. 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.

Helga Masthoff J Couwes
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 %
1968 2 2 4 50.0% 22 7 29 75.9% 1 1 2 50.0% 4 3 7 57.1% 1970 — — — — 0 1 1 0.0% — — — — — — — —
1969 3 3 6 50.0% 39 7 46 84.8% — — — — 0 1 1 0.0% — — — — — — — — — — — — — — — — —
1970 — — — — 45 10 55 81.8% 3 1 4 75.0% 5 1 6 83.3% — — — — — — — — — — — — — — — — —
1971 5 2 7 71.4% 35 5 40 87.5% 2 2 4 50.0% — — — — — — — — — — — — — — — — — — — — —
1972 — — — — 28 8 36 77.8% 0 1 1 0.0% 1 3 4 25.0% — — — — — — — — — — — — — — — — —
1973 — — — — 34 10 44 77.3% 4 1 5 80.0% 2 2 4 50.0% — — — — — — — — — — — — — — — — —
1974 — — — — 24 8 32 75.0% 3 1 4 75.0% 0 1 1 0.0% — — — — — — — — — — — — — — — — —
1975 — — — — 15 6 21 71.4% 9 2 11 81.8% — — — — — — — — — — — — — — — — — — — — —
1976 — — — — 29 5 34 85.3% 5 3 8 62.5% — — — — — — — — — — — — — — — — — — — — —
1977 — — — — 13 2 15 86.7% 1 2 3 33.3% 4 0 4 100.0% — — — — — — — — — — — — — — — — —
1978 — — — — 8 3 11 72.7% — — — — 3 1 4 75.0% — — — — — — — — — — — — — — — — —
1979 — — — — 5 1 6 83.3% — — — — — — — — — — — — — — — — — — — — — — — — —
1980 — — — — 23 6 29 79.3% — — — — — — — — — — — — — — — — — — — — — — — — —
Career 10 7 17 58.8% 320 78 398 80.4% 28 14 42 66.7% 19 12 31 61.3% Career — — — — 0 1 1 0.0% — — — — — — — —

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.