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

Sean Sorensen vs Sammy Giammalva Jr H2H: 1-0

Sean Sorensen holds a 1–0 lead over Sammy Giammalva Jr in their ATP head-to-head. Across 1 main-draw meeting, Sean Sorensen leads 1–0 on clay. Most recently, Sean Sorensen won the 1984 Hamburg Open round of 64 6-3 6-2.

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Sean Sorensen
IRL Age 70 Right-Handed
H2H
1 – 0
1 main-draw meetings
Sammy Giammalva Jr
USA Age 63 Right-Handed

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Sean Sorensen 6-3 6-2 Sammy Giammalva Jr Match data May 9, 1984* R64 Hamburg Open ATP 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
Sean Sorensen #796 #203 0 1,501 3 19 13.6% 0 0 0 0 0 0
Sammy Giammalva Jr — — — 1,803 — — — 0 0 0 0 2 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 Sean Sorensen Sammy Giammalva Jr
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
21 1977 0–1 0.0% #322 1,496 0 0 — — — — — — —
23 1979 0–3 0.0% #234 1,455 0 0 — — — — — — —
24 1980 2–9 18.2% #203 1,424 0 0 — — — — — — —
25 1981 0–2 0.0% — 1,417 0 0 — — — — — — —
26 1982 0–2 0.0% — 1,405 0 0 — — — — — — —
27 1983 0–1 0.0% #289 1,396 0 0 — — — — — — —
28 1984 1–1 50.0% #385 1,414 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 Sean Sorensen Sammy Giammalva Jr
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 — — — — — — — — — — — — — — — — — 1980 6 3 9 66.7% 0 1 1 0.0% — — — — — — — —
18 — — — — — — — — — — — — — — — — — 1981 13 8 21 61.9% 8 7 15 53.3% — — — — 2 5 7 28.6%
19 — — — — — — — — — — — — — — — — — 1982 0 3 3 0.0% 1 5 6 16.7% 6 3 9 66.7% 1 4 5 20.0%
20 — — — — — — — — — — — — — — — — — 1983 11 10 21 52.4% 6 5 11 54.5% 2 3 5 40.0% 5 2 7 71.4%
21 1977 — — — — — — — — 0 1 1 0.0% — — — — 1984 8 7 15 53.3% 3 4 7 42.9% 3 2 5 60.0% 1 2 3 33.3%
22 — — — — — — — — — — — — — — — — — 1985 10 8 18 55.6% — — — — 4 4 8 50.0% 4 5 9 44.4%
23 1979 0 3 3 0.0% — — — — — — — — — — — — 1986 6 8 14 42.9% 3 3 6 50.0% 2 2 4 50.0% 3 4 7 42.9%
24 1980 0 1 1 0.0% 0 4 4 0.0% 0 1 1 0.0% 2 3 5 40.0% 1987 4 8 12 33.3% 2 3 5 40.0% 4 3 7 57.1% 5 5 10 50.0%
25 1981 0 1 1 0.0% — — — — — — — — 0 1 1 0.0% 1988 7 8 15 46.7% 2 2 4 50.0% 3 3 6 50.0% 4 2 6 66.7%
26 1982 — — — — 0 1 1 0.0% — — — — 0 1 1 0.0% 1989 4 5 9 44.4% 0 2 2 0.0% 0 3 3 0.0% 1 0 1 100.0%
27 1983 — — — — 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — — — — — —
28 1984 — — — — 1 1 2 50.0% — — — — — — — — — — — — — — — — — — — — — — — — —
Career — 0 5 5 0.0% 1 7 8 12.5% 0 2 2 0.0% 2 5 7 28.6% — 69 68 137 50.4% 25 32 57 43.9% 24 23 47 51.1% 26 29 55 47.3%

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 Sean Sorensen Sammy Giammalva Jr
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 — — — — — — — — — — — — — — — — 1980 1608 127.7 — — — — +76 — — 50.0% -0.03 3–0 (100%) 1–0 — +0.70
18 — — — — — — — — — — — — — — — — 1981 1672 132.0 — — — — +26 -93 — 50.0% -0.02 15–10 (60%) 8–8 (50%) 103.8 +2.44
19 — — — — — — — — — — — — — — — — 1982 1623 123.4 — — — — -34 -90 +29 41.3% -0.35 4–8 (33%) 3–7 (30%) 94.9 +1.50
20 — — — — — — — — — — — — — — — — 1983 1701 132.6 — — — — -1 -112 -28 53.3% -0.09 7–7 (50%) 8–4 (67%) 103.1 +2.18
21 1977 1497 104.3 — — — — — — — 0.0% -4.67 — — — -0.19 1984 1715 139.4 — — — — -12 -117 +2 47.1% -0.23 6–2 (75%) 3–3 (50%) 105.8 -0.79
22 — — — — — — — — — — — — — — — — 1985 1737 142.0 — — — — +7 — +16 50.6% +0.04 3–2 (60%) 8–3 (73%) 106.1 -0.64
23 1979 1455 96.5 — — — — +42 — — 25.0% -1.38 0–2 2–1 (67%) — +0.53 1986 1740 140.4 — — — — -9 -120 -6 48.8% +0.15 4–6 (40%) 3–1 (75%) 100.4 -1.68
24 1980 1425 105.9 — — — — +56 +66 — 20.8% -2.00 0–1 0–3 (0%) — +0.57 1987 1644 128.6 — — — — +2 -40 +94 43.4% -0.45 4–4 (50%) 5–6 (45%) 97.9 +0.11
25 1981 1417 112.0 — — — — — — — 20.0% -1.80 0–1 1–0 — -0.12 1988 1653 124.7 — — — — -2 -43 +53 51.8% +0.13 7–6 (54%) 5–6 (45%) 97.8 +0.72
26 1982 1405 102.7 — — — — — — — 20.0% -2.00 0–1 1–0 — +0.03 1989 1582 113.0 — — — — +68 — +50 35.9% -0.54 2–2 (50%) 0–3 (0%) 96.8 +0.53
27 1983 1396 100.6 — — — — — — — 0.0% -2.50 — — — +0.04 — — — — — — — — — — — — — — — —
28 1984 1415 104.9 — — — — — — — 50.0% +0.25 — — — +0.02 — — — — — — — — — — — — — — — —
Career — 1501 108.7 — — — — +51 +66 — 21.6% -1.88 0–5 (0%) 4–4 (50%) 95.3 +4.00 — 1804 139.1 — — — — +8 -94 +29 48.1% -0.11 55–47 (54%) 44–41 (52%) 103.6 +1.72

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.