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

Nduka Odizor vs Sammy Giammalva Jr H2H: 0-1

Sammy Giammalva Jr holds a 1–0 lead over Nduka Odizor in their ATP head-to-head. Across 1 main-draw meeting, Sammy Giammalva Jr leads 1–0 on grass. Most recently, Sammy Giammalva Jr won the 1987 Wimbledon round of 128 6-3 6-7 6-3 6-3.

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Nduka Odizor
NGR Age 68 Right-Handed 183 cm / 6'0"
H2H
0 – 1
1 main-draw meetings
Sammy Giammalva Jr
USA Age 63 Right-Handed

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Sammy Giammalva Jr 6-3 6-7 6-3 6-3 Nduka Odizor #73 Match data Jun 24, 1987* R128 Wimbledon Grand Slam 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
Nduka Odizor #1,165 #52 186 1,730 81 121 40.1% 0 0 0 0 1 1
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 Nduka Odizor Sammy Giammalva Jr
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
21 1980 0–1 0.0% #457 1,489 0 0 — — — — — — —
22 1981 3–3 50.0% — 1,537 0 0 — — — — — — —
23 1982 13–16 44.8% #81 1,590 0 0 — — — — — — —
24 1983 19–20 48.7% #65 1,683 0 1 — — — — — — —
25 1984 9–13 40.9% #108 1,591 0 1 — — — — — — —
26 1985 9–13 40.9% #108 1,620 0 1 — — — — — — —
27 1986 5–14 26.3% #75 1,553 0 1 — — — — — — —
28 1987 16–19 45.7% #98 1,624 0 1 — — — — — — —
29 1988 1–7 12.5% #195 1,550 0 1 — — — — — — —
30 1989 3–7 30.0% #245 1,530 0 1 — — — — — — —
31 1990 3–5 37.5% #186 1,523 0 1 — — — — — — —
32 1991 0–1 0.0% #266 1,508 0 1 — — — — — — —
33 1992 0–2 0.0% #551 1,478 0 1 — — — — — — —

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 Nduka Odizor 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 1980 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 1981 3 3 6 50.0% — — — — — — — — — — — — 1985 10 8 18 55.6% — — — — 4 4 8 50.0% 4 5 9 44.4%
23 1982 3 6 9 33.3% 5 5 10 50.0% 4 3 7 57.1% 1 2 3 33.3% 1986 6 8 14 42.9% 3 3 6 50.0% 2 2 4 50.0% 3 4 7 42.9%
24 1983 5 9 14 35.7% 0 2 2 0.0% 6 6 12 50.0% 8 3 11 72.7% 1987 4 8 12 33.3% 2 3 5 40.0% 4 3 7 57.1% 5 5 10 50.0%
25 1984 1 5 6 16.7% 0 1 1 0.0% 6 3 9 66.7% 2 4 6 33.3% 1988 7 8 15 46.7% 2 2 4 50.0% 3 3 6 50.0% 4 2 6 66.7%
26 1985 2 3 5 40.0% 0 1 1 0.0% 6 5 11 54.5% 1 4 5 20.0% 1989 4 5 9 44.4% 0 2 2 0.0% 0 3 3 0.0% 1 0 1 100.0%
27 1986 3 6 9 33.3% 0 3 3 0.0% 2 4 6 33.3% 0 1 1 0.0% — — — — — — — — — — — — — — — — —
28 1987 9 12 21 42.9% — — — — 7 6 13 53.8% 0 1 1 0.0% — — — — — — — — — — — — — — — — —
29 1988 0 4 4 0.0% — — — — 0 1 1 0.0% 1 2 3 33.3% — — — — — — — — — — — — — — — — —
30 1989 3 6 9 33.3% — — — — 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — —
31 1990 3 3 6 50.0% — — — — 0 1 1 0.0% 0 1 1 0.0% — — — — — — — — — — — — — — — — —
32 1991 — — — — — — — — — — — — 0 1 1 0.0% — — — — — — — — — — — — — — — — —
33 1992 0 1 1 0.0% — — — — — — — — 0 1 1 0.0% — — — — — — — — — — — — — — — — —
Career — 32 59 91 35.2% 5 12 17 29.4% 31 30 61 50.8% 13 20 33 39.4% — 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 Nduka Odizor 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 1980 1489 99.3 — — — — — — — 33.3% 0.00 0–1 0–2 — +0.06 1984 1715 139.4 — — — — -12 -117 +2 47.1% -0.23 6–2 (75%) 3–3 (50%) 105.8 -0.79
22 1981 1538 117.4 — — — — +36 — — 50.0% -0.14 1–1 2–2 (50%) — +0.10 1985 1737 142.0 — — — — +7 — +16 50.6% +0.04 3–2 (60%) 8–3 (73%) 106.1 -0.64
23 1982 1591 118.9 — — — — -27 -28 +1 43.2% -0.66 7–3 (70%) 7–7 (50%) 103.9 +0.74 1986 1740 140.4 — — — — -9 -120 -6 48.8% +0.15 4–6 (40%) 3–1 (75%) 100.4 -1.68
24 1983 1684 129.3 — — — — +17 — -25 45.2% -0.54 11–4 (73%) 10–6 (63%) 113.9 +2.13 1987 1644 128.6 — — — — +2 -40 +94 43.4% -0.45 4–4 (50%) 5–6 (45%) 97.9 +0.11
25 1984 1592 117.3 — — — — +11 — +105 48.0% -0.36 2–5 (29%) 5–5 (50%) 95.3 +0.89 1988 1653 124.7 — — — — -2 -43 +53 51.8% +0.13 7–6 (54%) 5–6 (45%) 97.8 +0.72
26 1985 1620 126.2 — — — — -28 — +128 45.2% -0.39 2–4 (33%) 9–8 (53%) 99.3 +1.02 1989 1582 113.0 — — — — +68 — +50 35.9% -0.54 2–2 (50%) 0–3 (0%) 96.8 +0.53
27 1986 1554 119.3 — — — — +28 -96 +112 37.7% -0.83 1–6 (14%) 7–6 (54%) 95.1 +0.16 — — — — — — — — — — — — — — — —
28 1987 1625 129.3 — — — — +3 — +43 43.8% -0.52 6–3 (67%) 12–4 (75%) 110.9 +0.78 — — — — — — — — — — — — — — — —
29 1988 1550 100.4 — — — — +2 — — 21.7% -2.13 1–2 (33%) 2–3 (40%) 97.0 -0.26 — — — — — — — — — — — — — — — —
30 1989 1531 107.3 — — — — +9 — — 28.0% -1.56 3–1 (75%) 3–2 (60%) 104.3 -0.04 — — — — — — — — — — — — — — — —
31 1990 1524 116.9 — — — — +23 — — 52.6% +0.21 0–2 3–1 (75%) — +0.74 — — — — — — — — — — — — — — — —
32 1991 1509 99.2 -0.45 +0.60 0.633 44.1% — — — 0.0% -2.00 — — — -0.07 — — — — — — — — — — — — — — — —
33 1992 1478 97.4 -2.56 -2.02 0.819 45.2% — — — 20.0% -1.80 0–1 0–1 — +0.37 — — — — — — — — — — — — — — — —
Career — 1730 127.6 -1.86 -1.15 0.765 44.8% +6 -44 +57 42.3% -0.64 34–33 (51%) 60–47 (56%) 107.9 +3.28 — 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.