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

Christo Steyn vs Sammy Giammalva Jr H2H: 2-0

Christo Steyn holds a 2–0 lead over Sammy Giammalva Jr in their ATP head-to-head. Across 2 main-draw meetings, Christo Steyn leads 1–0 on clay and 1–0 on grass. Most recently, Christo Steyn won the 1986 Indianapolis round of 32 6-3 6-4.

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Christo Steyn
RSA Age 65 Right-Handed 185 cm / 6'1"
H2H
2 – 0
2 main-draw meetings
Sammy Giammalva Jr
USA Age 63 Right-Handed

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Christo Steyn #75 6-3 6-4 Sammy Giammalva Jr Match data May 1, 1986* R32 Indianapolis ATP 250 Clay
Christo Steyn #107 6-3 6-3 Sammy Giammalva Jr Match data Dec 13, 1985* R16 Sydney International ATP 250 Grass

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
Christo Steyn #620 #42 0 1,748 43 53 44.8% 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 Christo Steyn Sammy Giammalva Jr
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
22 1983 1–2 33.3% #616 1,505 0 0 — — — — — — —
24 1985 15–10 60.0% #77 1,657 0 0 — — — — — — —
25 1986 22–23 48.9% #67 1,677 0 0 — — — — — — —
26 1987 5–17 22.7% #278 1,530 0 0 — — — — — — —
27 1988 0–1 0.0% #601 1,510 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 Christo Steyn 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 — — — — — — — — — — — — — — — — — 1984 8 7 15 53.3% 3 4 7 42.9% 3 2 5 60.0% 1 2 3 33.3%
22 1983 1 1 2 50.0% 0 1 1 0.0% — — — — — — — — 1985 10 8 18 55.6% — — — — 4 4 8 50.0% 4 5 9 44.4%
23 — — — — — — — — — — — — — — — — — 1986 6 8 14 42.9% 3 3 6 50.0% 2 2 4 50.0% 3 4 7 42.9%
24 1985 2 3 5 40.0% 1 2 3 33.3% 12 5 17 70.6% — — — — 1987 4 8 12 33.3% 2 3 5 40.0% 4 3 7 57.1% 5 5 10 50.0%
25 1986 13 11 24 54.2% 3 4 7 42.9% 3 3 6 50.0% 3 5 8 37.5% 1988 7 8 15 46.7% 2 2 4 50.0% 3 3 6 50.0% 4 2 6 66.7%
26 1987 4 11 15 26.7% — — — — 1 4 5 20.0% 0 2 2 0.0% 1989 4 5 9 44.4% 0 2 2 0.0% 0 3 3 0.0% 1 0 1 100.0%
27 1988 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
Career — 20 27 47 42.6% 4 7 11 36.4% 16 12 28 57.1% 3 7 10 30.0% — 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 Christo Steyn 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 — — — — — — — — — — — — — — — — 1984 1715 139.4 — — — — -12 -117 +2 47.1% -0.23 6–2 (75%) 3–3 (50%) 105.8 -0.79
22 1983 1506 108.7 — — — — — — — 45.5% 0.00 0–1 — — +0.34 1985 1737 142.0 — — — — +7 — +16 50.6% +0.04 3–2 (60%) 8–3 (73%) 106.1 -0.64
23 — — — — — — — — — — — — — — — — 1986 1740 140.4 — — — — -9 -120 -6 48.8% +0.15 4–6 (40%) 3–1 (75%) 100.4 -1.68
24 1985 1658 127.9 — — — — -98 -149 +77 59.1% +0.45 2–3 (40%) 6–3 (67%) 101.3 +2.14 1987 1644 128.6 — — — — +2 -40 +94 43.4% -0.45 4–4 (50%) 5–6 (45%) 97.9 +0.11
25 1986 1677 129.0 — — — — -42 -146 +61 47.3% -0.32 9–4 (69%) 9–12 (43%) 103.4 +0.56 1988 1653 124.7 — — — — -2 -43 +53 51.8% +0.13 7–6 (54%) 5–6 (45%) 97.8 +0.72
26 1987 1531 114.3 — — — — -6 — +120 28.8% -1.38 0–3 (0%) 1–3 (25%) 94.1 +0.12 1989 1582 113.0 — — — — +68 — +50 35.9% -0.54 2–2 (50%) 0–3 (0%) 96.8 +0.53
27 1988 1510 100.0 — — — — — — — 40.0% -1.40 0–1 1–0 — +0.09 — — — — — — — — — — — — — — — —
Career — 1749 127.1 — — — — -36 -147 +81 46.3% -0.35 11–12 (48%) 17–18 (49%) 99.3 +3.39 — 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.