H2H data updated: 2026-09-01 00:00 UTC

John James vs Deon Joubert H2H: 1-0

John James holds a 1–0 lead over Deon Joubert in their ATP head-to-head. Across 1 main-draw meeting, John James leads 1–0 on clay. Most recently, John James won the 1978 Louisville round of 64 6-2 6-0.

Want to explore more matchups? Advanced rivalry search lets you browse current and historical rivalries, unbeaten records, or every matchup for a player.

John James
AUS Age 75 Right-Handed 183 cm / 6'0"
H2H
1 – 0
1 main draw meetings
Deon Joubert
RSA Age 73 Left-Handed

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
John James 6-2 6-0 Deon Joubert #67 Match data Aug 1, 1978* R64 Louisville 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
John James #808 #81 28 1,682 98 144 40.5% 0 0 0 0 0 0
Deon Joubert #739 #52 0 1,633 39 76 33.9% 0 0 0 0 0 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 John James Deon Joubert
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
17 1968 3–3 50.0% — 1,516 0 0 — — — — — — —
18 — — — — — — — 1971 1–1 50.0% — 1,496 0 0
19 1970 1–1 50.0% — 1,513 0 0 — — — — — — —
20 — — — — — — — 1973 2–3 40.0% — 1,501 0 0
21 1972 7–4 63.6% — 1,570 0 0 1974 2–1 66.7% #176 1,546 0 0
22 1973 0–5 0.0% — 1,514 0 0 1975 0–3 0.0% #238 1,512 0 0
23 1974 2–3 40.0% #249 1,517 0 0 1976 4–5 44.4% #154 1,552 0 0
24 1975 5–10 33.3% #135 1,517 0 0 1977 4–16 20.0% #97 1,510 0 0
25 1976 6–14 30.0% #146 1,512 0 0 1978 4–7 36.4% #56 1,526 0 0
26 1977 16–23 41.0% #97 1,583 0 0 1979 12–22 35.3% #111 1,542 0 0
27 1978 20–27 42.6% #102 1,629 0 0 1980 7–12 36.8% #144 1,522 0 0
28 1979 19–22 46.3% #91 1,644 0 0 1981 3–4 42.9% — 1,536 0 0
29 1980 12–25 32.4% #209 1,493 0 0 1982 0–1 0.0% — 1,523 0 0
30 1981 3–4 42.9% — 1,490 0 0 — — — — — — —
31 1982 4–3 57.1% — 1,559 0 0 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 John James Deon Joubert
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 1968 — — — — — — — — 3 3 6 50.0% — — — — — — — — — — — — — — — — — — — — —
18 — — — — — — — — — — — — — — — — — 1971 1 1 2 50.0% — — — — — — — — — — — —
19 1970 — — — — — — — — 1 1 2 50.0% — — — — — — — — — — — — — — — — — — — — —
20 — — — — — — — — — — — — — — — — — 1973 0 1 1 0.0% — — — — 2 2 4 50.0% — — — —
21 1972 0 1 1 0.0% — — — — 7 3 10 70.0% — — — — 1974 2 1 3 66.7% — — — — — — — — — — — —
22 1973 — — — — — — — — 0 5 5 0.0% — — — — 1975 0 1 1 0.0% 0 2 2 0.0% — — — — — — — —
23 1974 — — — — — — — — 2 3 5 40.0% — — — — 1976 1 1 2 50.0% 3 4 7 42.9% — — — — — — — —
24 1975 0 1 1 0.0% 2 4 6 33.3% 2 3 5 40.0% 1 2 3 33.3% 1977 — — — — 4 14 18 22.2% 0 2 2 0.0% — — — —
25 1976 1 4 5 20.0% 1 6 7 14.3% 4 3 7 57.1% 0 1 1 0.0% 1978 1 2 3 33.3% 3 4 7 42.9% — — — — 0 1 1 0.0%
26 1977 1 3 4 25.0% 8 8 16 50.0% 4 6 10 40.0% 3 6 9 33.3% 1979 7 4 11 63.6% 1 8 9 11.1% 0 1 1 0.0% 4 9 13 30.8%
27 1978 7 8 15 46.7% 2 8 10 20.0% 9 6 15 60.0% 2 5 7 28.6% 1980 2 4 6 33.3% 4 4 8 50.0% 1 1 2 50.0% 0 3 3 0.0%
28 1979 5 6 11 45.5% 4 6 10 40.0% 8 7 15 53.3% 2 3 5 40.0% 1981 2 1 3 66.7% 1 3 4 25.0% — — — — — — — —
29 1980 4 7 11 36.4% 5 10 15 33.3% 3 5 8 37.5% 0 3 3 0.0% 1982 — — — — 0 1 1 0.0% — — — — — — — —
30 1981 2 2 4 50.0% 1 1 2 50.0% 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — —
31 1982 — — — — 1 2 3 33.3% 3 1 4 75.0% — — — — 1984 — — — — 0 1 1 0.0% — — — — — — — —
Career — 20 32 52 38.5% 24 45 69 34.8% 46 47 93 49.5% 8 20 28 28.6% — 16 16 32 50.0% 16 41 57 28.1% 3 6 9 33.3% 4 13 17 23.5%

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 John James Deon Joubert
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 1968 1517 105.8 — — — — — — +24 56.5% +0.69 1–2 (33%) — — +0.22 — — — — — — — — — — — — — — — —
18 — — — — — — — — — — — — — — — — 1971 1497 104.2 — — — — — — — 57.1% +1.86 — 0–2 — +0.16
19 1970 1514 99.8 — — — — — — — 50.0% 0.00 — — — +0.23 — — — — — — — — — — — — — — — —
20 — — — — — — — — — — — — — — — — 1973 1502 98.2 — — — — — — +47 42.1% -0.47 1–1 0–1 — +0.45
21 1972 1570 111.6 — — — — — — +66 56.7% +0.27 1–1 3–0 (100%) — +0.69 1974 1547 107.7 — — — — +32 — — 66.7% 0.00 — — — +0.05
22 1973 1514 96.4 — — — — — — -5 23.1% -1.54 0–1 0–1 — -0.23 1975 1513 97.6 — — — — — — — 0.0% -3.17 — 0–1 — +0.10
23 1974 1518 116.6 — — — — — — -4 30.0% -2.20 0–1 1–0 — -0.43 1976 1553 112.7 — — — — — -11 — 40.0% -1.20 2–0 2–0 — +0.22
24 1975 1517 115.0 — — — — +32 +20 -4 35.3% -1.26 0–2 2–0 — +0.66 1977 1511 121.1 — — — — — -27 — 27.7% -1.36 1–4 (20%) 0–2 — -0.95
25 1976 1513 125.5 — — — — -18 -10 +71 36.0% -0.80 3–4 (43%) 2–3 (40%) — +1.02 1978 1526 107.9 — — — — +34 -16 — 33.3% -1.42 2–0 1–1 — +0.46
26 1977 1583 129.9 — — — — -86 +21 -28 40.0% -0.40 4–4 (50%) 1–3 (25%) — -0.34 1979 1542 127.8 — — — — +88 -95 — 39.3% -0.68 8–8 (50%) 4–5 (44%) — +1.29
27 1978 1629 127.4 — — — — -82 -94 +53 43.9% -0.27 6–6 (50%) 4–7 (36%) — +1.51 1980 1522 107.4 — — — — +53 -30 — 34.2% -1.74 1–1 2–0 — +1.42
28 1979 1645 125.5 — — — — -50 -102 +53 47.9% -0.21 2–3 (40%) 5–7 (42%) — +2.00 1981 1537 109.8 — — — — +65 -58 — 47.1% -0.06 1–2 (33%) 0–2 — +0.40
29 1980 1494 113.3 — — — — +7 +34 +158 34.9% -0.97 2–7 (22%) 1–4 (20%) — +3.49 1982 1524 103.4 — — — — — — — 33.3% -1.00 0–1 — — +0.08
30 1981 1490 106.2 — — — — +36 — — 50.0% -0.45 0–2 — — +1.40 — — — — — — — — — — — — — — — —
31 1982 1560 121.8 — — — — — -22 +96 50.0% -0.56 2–0 1–0 — -0.32 1984 1516 102.1 — — — — — — — 0.0% -3.50 — — — -0.12
Career — 1683 127.2 — — — — -44 -17 +47 42.3% -0.49 21–33 (39%) 20–25 (44%) 94.5 +4.13 — 1633 120.8 — — — — +70 -38 +47 36.6% -0.99 16–17 (48%) 9–14 (39%) 97.8 +3.12

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.