H2H data updated: 2026-09-11 00:00 UTC

Peter Rennert vs Sammy Giammalva Jr H2H: 1-0

Peter Rennert holds a 1–0 lead over Sammy Giammalva Jr in their ATP head-to-head. Across 1 main-draw meeting, Peter Rennert leads 1–0 on carpet. Most recently, Peter Rennert won the 1981 Wembley round of 32 6-7 6-2 6-2.

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Peter Rennert
USA Age 67 Left-Handed 185 cm / 6'1"
H2H
1 – 0
1 main-draw meetings
Sammy Giammalva Jr
USA Age 63 Right-Handed

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Peter Rennert #55 6-7 6-2 6-2 Sammy Giammalva Jr Match data Nov 12, 1981* R32 Wembley ATP 250 Carpet

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
Peter Rennert #806 #40 0 1,770 49 60 45.0% 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 Peter Rennert Sammy Giammalva Jr
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
20 1979 5–6 45.5% #60 1,551 0 0 — — — — — — —
21 1980 18–16 52.9% #63 1,732 0 0 — — — — — — —
22 1981 10–14 41.7% #58 1,691 0 0 — — — — — — —
23 1982 13–17 43.3% #96 1,641 0 0 — — — — — — —
24 1983 3–5 37.5% #115 1,638 0 0 — — — — — — —
25 1984 0–2 0.0% #434 1,609 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 Peter Rennert 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 1979 0 2 2 0.0% 1 1 2 50.0% 3 2 5 60.0% 1 1 2 50.0% 1983 11 10 21 52.4% 6 5 11 54.5% 2 3 5 40.0% 5 2 7 71.4%
21 1980 3 5 8 37.5% 3 2 5 60.0% 9 5 14 64.3% 3 4 7 42.9% 1984 8 7 15 53.3% 3 4 7 42.9% 3 2 5 60.0% 1 2 3 33.3%
22 1981 0 4 4 0.0% 0 1 1 0.0% 5 4 9 55.6% 5 5 10 50.0% 1985 10 8 18 55.6% — — — — 4 4 8 50.0% 4 5 9 44.4%
23 1982 4 5 9 44.4% 2 1 3 66.7% 4 4 8 50.0% 3 7 10 30.0% 1986 6 8 14 42.9% 3 3 6 50.0% 2 2 4 50.0% 3 4 7 42.9%
24 1983 2 3 5 40.0% — — — — 1 1 2 50.0% 0 1 1 0.0% 1987 4 8 12 33.3% 2 3 5 40.0% 4 3 7 57.1% 5 5 10 50.0%
25 1984 — — — — — — — — 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 — — — — — — — — — — — — — — — — — 1989 4 5 9 44.4% 0 2 2 0.0% 0 3 3 0.0% 1 0 1 100.0%
Career — 9 19 28 32.1% 6 5 11 54.5% 22 17 39 56.4% 12 19 31 38.7% — 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 Peter Rennert 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 1979 1552 115.8 — — — — -22 — +46 48.3% -0.07 0–1 2–2 (50%) — +1.40 1983 1701 132.6 — — — — -1 -112 -28 53.3% -0.09 7–7 (50%) 8–4 (67%) 103.1 +2.18
21 1980 1733 132.0 — — — — -170 -155 +5 52.2% +0.03 5–6 (45%) 10–6 (63%) 103.0 +1.48 1984 1715 139.4 — — — — -12 -117 +2 47.1% -0.23 6–2 (75%) 3–3 (50%) 105.8 -0.79
22 1981 1692 136.3 — — — — -78 — +36 43.5% -0.34 4–6 (40%) 3–6 (33%) 96.8 -1.41 1985 1737 142.0 — — — — +7 — +16 50.6% +0.04 3–2 (60%) 8–3 (73%) 106.1 -0.64
23 1982 1642 129.7 — — — — -51 -73 +74 46.9% -0.23 4–7 (36%) 6–3 (67%) 101.4 -0.03 1986 1740 140.4 — — — — -9 -120 -6 48.8% +0.15 4–6 (40%) 3–1 (75%) 100.4 -1.68
24 1983 1639 111.9 — — — — -54 — — 37.5% -1.50 2–0 2–1 (67%) — -0.48 1987 1644 128.6 — — — — +2 -40 +94 43.4% -0.45 4–4 (50%) 5–6 (45%) 97.9 +0.11
25 1984 1609 102.2 — — — — — — — 0.0% -2.50 — 0–1 — +0.08 1988 1653 124.7 — — — — -2 -43 +53 51.8% +0.13 7–6 (54%) 5–6 (45%) 97.8 +0.72
26 — — — — — — — — — — — — — — — — 1989 1582 113.0 — — — — +68 — +50 35.9% -0.54 2–2 (50%) 0–3 (0%) 96.8 +0.53
Career — 1771 134.1 — — — — -87 -124 +34 46.8% -0.26 15–20 (43%) 23–19 (55%) 102.1 +0.95 — 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.