H2H data updated: 2026-09-02 00:00 UTC

Deon Joubert vs Billy Martin H2H: 1-0

Deon Joubert holds a 1–0 lead over Billy Martin in their ATP head-to-head. Across 1 main-draw meeting, Deon Joubert leads 1–0 on clay. Most recently, Deon Joubert won the 1978 South Orange round of 32 6-2 6-4.

RSA Age 73 Left-Handed
H2H
1 0
1 main draw meetings
USA Age 69 Right-Handed 178 cm / 5'10"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Deon Joubert #67 6-2 6-4 Billy Martin #97 Match data Aug 2, 1978* R32 South Orange 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
Deon Joubert #739 #52 0 1,633 39 76 33.9% 0 0 0 0 0 0
Billy Martin #831 #32 0 1,821 146 175 45.5% 0 0 0 0 1 1

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 Deon Joubert Billy Martin
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
15 1972 0–1 0.0% 1,498 0 0
16 1973 4–7 36.4% #145 1,536 0 0
17 1974 18–14 56.2% #36 1,676 0 0
18 1971 1–1 50.0% 1,496 0 0 1975 18–16 52.9% #67 1,714 0 1
19 1976 29–31 48.3% #62 1,701 0 1
20 1973 2–3 40.0% 1,501 0 0 1977 28–29 49.1% #58 1,792 0 1
21 1974 2–1 66.7% #176 1,546 0 0 1978 9–23 28.1% #188 1,665 0 1
22 1975 0–3 0.0% #238 1,512 0 0 1979 14–14 50.0% #66 1,680 0 1
23 1976 4–5 44.4% #154 1,552 0 0 1980 15–24 38.5% #118 1,608 0 1
24 1977 4–16 20.0% #97 1,510 0 0 1981 10–15 40.0% 1,577 0 1
25 1978 4–7 36.4% #56 1,526 0 0 1982 1–1 50.0% 1,588 0 1
26 1979 12–22 35.3% #111 1,542 0 0
27 1980 7–12 36.8% #144 1,522 0 0
28 1981 3–4 42.9% 1,536 0 0
29 1982 0–1 0.0% 1,523 0 0
31 1984 0–1 0.0% #463 1,516 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 Deon Joubert Billy Martin
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 1972 0 1 1 0.0%
16 1973 0 2 2 0.0% 0 2 2 0.0% 2 2 4 50.0% 2 1 3 66.7%
17 1974 4 3 7 57.1% 5 2 7 71.4% 0 2 2 0.0% 9 7 16 56.3%
18 1971 1 1 2 50.0% 1975 3 3 6 50.0% 2 5 7 28.6% 13 8 21 61.9%
19 1976 2 6 8 25.0% 13 10 23 56.5% 3 3 6 50.0% 11 12 23 47.8%
20 1973 0 1 1 0.0% 2 2 4 50.0% 1977 11 10 21 52.4% 6 6 12 50.0% 5 3 8 62.5% 6 10 16 37.5%
21 1974 2 1 3 66.7% 1978 0 2 2 0.0% 4 10 14 28.6% 4 3 7 57.1% 1 8 9 11.1%
22 1975 0 1 1 0.0% 0 2 2 0.0% 1979 6 6 12 50.0% 4 4 8 50.0% 0 1 1 0.0% 4 3 7 57.1%
23 1976 1 1 2 50.0% 3 4 7 42.9% 1980 5 7 12 41.7% 3 6 9 33.3% 4 5 9 44.4% 3 6 9 33.3%
24 1977 4 14 18 22.2% 0 2 2 0.0% 1981 3 5 8 37.5% 5 7 12 41.7% 2 3 5 40.0%
25 1978 1 2 3 33.3% 3 4 7 42.9% 0 1 1 0.0% 1982 1 1 2 50.0%
26 1979 7 4 11 63.6% 1 8 9 11.1% 0 1 1 0.0% 4 9 13 30.8%
27 1980 2 4 6 33.3% 4 4 8 50.0% 1 1 2 50.0% 0 3 3 0.0%
28 1981 2 1 3 66.7% 1 3 4 25.0%
29 1982 0 1 1 0.0%
31 1984 0 1 1 0.0%
Career 16 16 32 50.0% 16 41 57 28.1% 3 6 9 33.3% 4 13 17 23.5% 34 44 78 43.6% 42 52 94 44.7% 20 23 43 46.5% 50 56 106 47.2%

Advanced Statistics Comparison by Age

Seasons are aligned by the age each player spent most of that calendar year. Metrics are precomputed from eligible main-draw results; point-stat values use the available detailed sample. 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 Deon Joubert Billy Martin
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 1972 1498 111.7 25.0% -2.00 -0.28
16 1973 1536 117.4 +49 +38 39.3% -0.68 0–1 -0.12
17 1974 1677 129.0 +16 -52 53.4% -0.03 4–7 (36%) 10–2 (83%) +1.49
18 1971 1497 104.2 57.1% +1.86 0–2 +0.16 1975 1714 138.7 +86 -137 51.9% -0.03 6–6 (50%) 10–1 (91%) +0.47
19 1976 1702 146.0 +33 0 -182 49.3% -0.08 6–13 (32%) 5–5 (50%) -2.86
20 1973 1502 98.2 +47 42.1% -0.47 1–1 0–1 +0.45 1977 1793 146.8 -15 -102 -130 52.2% -0.03 4–12 (25%) 4–6 (40%) -2.58
21 1974 1547 107.7 +32 66.7% 0.00 +0.05 1978 1665 137.0 -32 -6 +57 36.1% -1.01 3–8 (27%) 9–3 (75%) -2.93
22 1975 1513 97.6 0.0% -3.17 0–1 +0.10 1979 1680 132.8 +4 -7 51.4% -0.33 3–5 (38%) 7–3 (70%) +1.16
23 1976 1553 112.7 -11 40.0% -1.20 2–0 2–0 +0.22 1980 1609 126.7 +37 +11 +57 40.2% -0.73 4–6 (40%) 5–4 (56%) -0.92
24 1977 1511 121.1 -27 27.7% -1.36 1–4 (20%) 0–2 -0.95 1981 1577 119.0 +36 +39 +70 41.9% -0.84 2–3 (40%) 5–2 (71%) +1.85
25 1978 1526 107.9 +34 -16 33.3% -1.42 2–0 1–1 +0.46 1982 1588 105.2 40.0% -1.00 1–0 1–0 +0.08
26 1979 1542 127.8 +88 -95 39.3% -0.68 8–8 (50%) 4–5 (44%) +1.29
27 1980 1522 107.4 +53 -30 34.2% -1.74 1–1 2–0 +1.42
28 1981 1537 109.8 +65 -58 47.1% -0.06 1–2 (33%) 0–2 +0.40
29 1982 1524 103.4 33.3% -1.00 0–1 +0.08
31 1984 1516 102.1 0.0% -3.50 -0.12
Career 1633 120.8 +70 -38 +47 36.6% -0.99 16–17 (48%) 9–14 (39%) 97.8 +3.12 1821 142.5 +23 -23 -18 47.0% -0.36 33–61 (35%) 56–26 (68%) 104.7 -1.45

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.