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

Tommy Ho vs Sammy Giammalva Jr H2H: 0-1

Sammy Giammalva Jr holds a 1–0 lead over Tommy Ho in their ATP head-to-head. Across 1 main-draw meeting, Sammy Giammalva Jr leads 1–0 on hard courts. Most recently, Sammy Giammalva Jr won the 1989 Canadian Open round of 64 6-4 7-5.

USA Age 53 Left-Handed 183 cm / 6'0"
H2H
0 1
1 main-draw meetings
USA Age 63 Right-Handed

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Sammy Giammalva Jr 6-4 7-5 Tommy Ho #547 Match data Aug 16, 1989* R64 Canadian Open ATP 500 Hard

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
Tommy Ho #1,306 #85 522 1,622 36 66 35.3% 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 Tommy Ho Sammy Giammalva Jr
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
15 1988 1–4 20.0% #625 1,493 0 0
16 1989 0–5 0.0% #641 1,444 0 0
17 1990 2–2 50.0% #182 1,490 0 0
18 1991 2–4 33.3% #224 1,491 0 0
19 1992 4–4 50.0% #154 1,561 0 0
20 1993 7–14 33.3% #132 1,553 0 0
21 1994 2–10 16.7% #165 1,484 0 0
22 1995 14–16 46.7% #127 1,562 0 0
23 1996 1–2 33.3% #482 1,556 0 0
24 1997 3–4 42.9% #250 1,560 0 0
25 1998 0–1 0.0% #1256 1,546 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 Tommy Ho 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 %
15 1988 1 4 5 20.0%
16 1989 0 4 4 0.0% 0 1 1 0.0%
17 1990 2 2 4 50.0% 1980 6 3 9 66.7% 0 1 1 0.0%
18 1991 1 3 4 25.0% 1 1 2 50.0% 1981 13 8 21 61.9% 8 7 15 53.3% 2 5 7 28.6%
19 1992 4 4 8 50.0% 1982 0 3 3 0.0% 1 5 6 16.7% 6 3 9 66.7% 1 4 5 20.0%
20 1993 3 10 13 23.1% 0 2 2 0.0% 4 2 6 66.7% 1983 11 10 21 52.4% 6 5 11 54.5% 2 3 5 40.0% 5 2 7 71.4%
21 1994 0 6 6 0.0% 0 1 1 0.0% 2 3 5 40.0% 1984 8 7 15 53.3% 3 4 7 42.9% 3 2 5 60.0% 1 2 3 33.3%
22 1995 8 7 15 53.3% 0 2 2 0.0% 4 3 7 57.1% 2 4 6 33.3% 1985 10 8 18 55.6% 4 4 8 50.0% 4 5 9 44.4%
23 1996 0 1 1 0.0% 1 1 2 50.0% 1986 6 8 14 42.9% 3 3 6 50.0% 2 2 4 50.0% 3 4 7 42.9%
24 1997 3 4 7 42.9% 1987 4 8 12 33.3% 2 3 5 40.0% 4 3 7 57.1% 5 5 10 50.0%
25 1998 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 22 45 67 32.8% 0 3 3 0.0% 4 6 10 40.0% 10 12 22 45.5% 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 Tommy Ho 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
15 1988 1493 111.5 +31 16.7% -1.92 1–0 0–2 -0.44
16 1989 1444 98.2 +20 9.1% -2.27 0–1 +0.20
17 1990 1490 118.0 +32 33.3% -0.89 1–1 1–2 (33%) -0.08 1980 1608 127.7 +76 50.0% -0.03 3–0 (100%) 1–0 +0.70
18 1991 1492 106.7 -0.42 -1.22 0.898 47.8% +20 40.0% -0.67 1–2 (33%) 0–1 -0.10 1981 1672 132.0 +26 -93 50.0% -0.02 15–10 (60%) 8–8 (50%) 103.8 +2.44
19 1992 1561 120.9 +0.64 +0.42 1.096 51.0% +23 59.1% +0.41 0–2 4–3 (57%) +0.42 1982 1623 123.4 -34 -90 +29 41.3% -0.35 4–8 (33%) 3–7 (30%) 94.9 +1.50
20 1993 1553 117.7 -1.61 -2.42 0.843 46.9% +25 40.7% -0.78 1–6 (14%) 4–4 (50%) 95.5 +0.53 1983 1701 132.6 -2 -112 -28 53.3% -0.09 7–7 (50%) 8–4 (67%) 103.1 +2.18
21 1994 1484 112.9 -1.58 -0.49 0.877 47.5% +17 25.0% -1.14 1–2 (33%) 2–6 (25%) 96.7 +0.63 1984 1715 139.4 -12 -117 +2 47.1% -0.23 6–2 (75%) 3–3 (50%) 105.8 -0.79
22 1995 1562 130.5 +0.48 +1.09 1.031 50.3% +18 +36 49.4% +0.06 3–6 (33%) 3–5 (38%) 95.0 +0.89 1985 1737 142.0 +7 +16 50.6% +0.04 3–2 (60%) 8–3 (73%) 106.1 -0.64
23 1996 1557 112.9 -0.28 +0.97 0.978 49.8% +16 42.9% -0.14 0–1 2–1 (67%) +0.13 1986 1740 140.4 -9 -120 -6 48.8% +0.15 4–6 (40%) 3–1 (75%) 100.4 -1.68
24 1997 1561 115.7 +1.65 -1.05 1.015 50.2% +16 47.4% -0.32 1–2 (33%) 2–0 +0.34 1987 1644 128.6 +2 -40 +94 43.4% -0.45 4–4 (50%) 5–6 (45%) 97.9 +0.11
25 1998 1546 96.1 -1.39 -2.17 0.509 39.4% 0.0% -3.50 +0.11 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 1622 127.2 -0.32 -0.37 0.946 48.8% +21 +36 40.7% -0.54 9–23 (28%) 18–24 (43%) 91.9 +2.58 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.