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

John James vs Byron Bertram H2H: 2-1

John James holds a 2–1 lead over Byron Bertram in their ATP head-to-head. Across 3 main-draw meetings, they are tied 1–1 on hard courts, while John James leads 1–0 on carpet. Most recently, Byron Bertram won the 1980 Palm Harbor round of 16 6-2 5-7 7-6.

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John James
AUS Age 75 Right-Handed 183 cm / 6'0"
H2H
2 – 1
3 main draw meetings
Byron Bertram
RSA Age 73 Right-Handed

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Byron Bertram 6-2 5-7 7-6 John James Match data Apr 4, 1980* R16 Palm Harbor ATP 250 Hard
John James 6-1 6-1 Byron Bertram #66 Match data May 3, 1978* R32 Tulsa ATP 250 Hard
John James 6-4 6-3 Byron Bertram Match data Jul 23, 1975* R32 Chicago ATP 250 Carpet

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
Byron Bertram #150 #57 0 1,815 115 139 45.3% 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 Byron Bertram
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
16 — — — — — — — 1969 0–3 0.0% — 1,467 0 0
17 1968 3–3 50.0% — 1,516 0 0 1970 11–11 50.0% — 1,540 0 0
18 — — — — — — — 1971 9–13 40.9% — 1,547 0 0
19 1970 1–1 50.0% — 1,513 0 0 1972 2–2 50.0% — 1,536 0 0
20 — — — — — — — 1973 11–10 52.4% #152 1,617 0 0
21 1972 7–4 63.6% — 1,570 0 0 1974 15–13 53.6% #156 1,655 0 0
22 1973 0–5 0.0% — 1,514 0 0 1975 5–8 38.5% #120 1,652 0 0
23 1974 2–3 40.0% #249 1,517 0 0 1976 23–24 48.9% #57 1,737 0 0
24 1975 5–10 33.3% #135 1,517 0 0 1977 21–27 43.8% #87 1,744 0 0
25 1976 6–14 30.0% #146 1,512 0 0 1978 10–11 47.6% #92 1,668 0 0
26 1977 16–23 41.0% #97 1,583 0 0 1979 1–2 33.3% #219 1,649 0 0
27 1978 20–27 42.6% #102 1,629 0 0 1980 7–15 31.8% #150 1,570 0 0
28 1979 19–22 46.3% #91 1,644 0 0 — — — — — — —
29 1980 12–25 32.4% #209 1,493 0 0 — — — — — — —
30 1981 3–4 42.9% — 1,490 0 0 — — — — — — —
31 1982 4–3 57.1% — 1,559 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 Byron Bertram
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 %
16 — — — — — — — — — — — — — — — — — 1969 0 3 3 0.0% — — — — — — — — — — — —
17 1968 — — — — — — — — 3 3 6 50.0% — — — — 1970 1 3 4 25.0% 2 3 5 40.0% 8 5 13 61.5% — — — —
18 — — — — — — — — — — — — — — — — — 1971 4 5 9 44.4% 0 2 2 0.0% 5 4 9 55.6% 0 2 2 0.0%
19 1970 — — — — — — — — 1 1 2 50.0% — — — — 1972 1 1 2 50.0% — — — — 1 1 2 50.0% — — — —
20 — — — — — — — — — — — — — — — — — 1973 3 3 6 50.0% 1 3 4 25.0% 6 3 9 66.7% 1 1 2 50.0%
21 1972 0 1 1 0.0% — — — — 7 3 10 70.0% — — — — 1974 3 1 4 75.0% 1 4 5 20.0% 1 1 2 50.0% 10 7 17 58.8%
22 1973 — — — — — — — — 0 5 5 0.0% — — — — 1975 1 3 4 25.0% 3 3 6 50.0% 1 1 2 50.0% 0 1 1 0.0%
23 1974 — — — — — — — — 2 3 5 40.0% — — — — 1976 7 4 11 63.6% 13 15 28 46.4% 0 1 1 0.0% 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 7 10 17 41.2% 4 7 11 36.4% 6 3 9 66.7% 4 7 11 36.4%
25 1976 1 4 5 20.0% 1 6 7 14.3% 4 3 7 57.1% 0 1 1 0.0% 1978 0 3 3 0.0% 0 1 1 0.0% 0 1 1 0.0% 10 6 16 62.5%
26 1977 1 3 4 25.0% 8 8 16 50.0% 4 6 10 40.0% 3 6 9 33.3% 1979 0 1 1 0.0% — — — — — — — — 1 1 2 50.0%
27 1978 7 8 15 46.7% 2 8 10 20.0% 9 6 15 60.0% 2 5 7 28.6% 1980 4 6 10 40.0% 0 3 3 0.0% 1 4 5 20.0% 2 2 4 50.0%
28 1979 5 6 11 45.5% 4 6 10 40.0% 8 7 15 53.3% 2 3 5 40.0% — — — — — — — — — — — — — — — — —
29 1980 4 7 11 36.4% 5 10 15 33.3% 3 5 8 37.5% 0 3 3 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% — — — — — — — — — — — — — — — — — — — — —
Career — 20 32 52 38.5% 24 45 69 34.8% 46 47 93 49.5% 8 20 28 28.6% — 31 43 74 41.9% 24 41 65 36.9% 29 24 53 54.7% 31 31 62 50.0%

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 Byron Bertram
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
16 — — — — — — — — — — — — — — — — 1969 1467 97.7 — — — — +26 — — 20.0% -2.20 — — — -0.10
17 1968 1517 105.8 — — — — — — +24 56.5% +0.69 1–2 (33%) — — +0.22 1970 1541 119.6 — — — — -55 -40 +104 49.1% -0.21 0–1 — — +0.86
18 — — — — — — — — — — — — — — — — 1971 1547 108.9 — — — — -39 — +97 47.5% -0.13 2–7 (22%) 3–2 (60%) — +2.12
19 1970 1514 99.8 — — — — — — — 50.0% 0.00 — — — +0.23 1972 1536 105.5 — — — — — — — 54.5% +1.27 — 0–1 — +0.31
20 — — — — — — — — — — — — — — — — 1973 1618 113.6 — — — — +1 -147 +39 49.0% -0.12 5–3 (63%) 2–2 (50%) — +1.62
21 1972 1570 111.6 — — — — — — +66 56.7% +0.27 1–1 3–0 (100%) — +0.69 1974 1655 122.3 — — — — +78 -202 — 53.2% +0.08 5–3 (63%) 5–2 (71%) — +2.72
22 1973 1514 96.4 — — — — — — -5 23.1% -1.54 0–1 0–1 — -0.23 1975 1653 123.3 — — — — +13 -136 — 44.1% -0.26 2–3 (40%) 3–2 (60%) — -0.16
23 1974 1518 116.6 — — — — — — -4 30.0% -2.20 0–1 1–0 — -0.43 1976 1737 135.3 — — — — +19 -143 — 48.7% -0.04 10–8 (56%) 5–6 (45%) — -0.81
24 1975 1517 115.0 — — — — +32 +20 -4 35.3% -1.26 0–2 2–0 — +0.66 1977 1745 136.0 — — — — -14 -174 +50 43.4% -0.53 11–5 (69%) 4–7 (36%) — -2.84
25 1976 1513 125.5 — — — — -18 -10 +71 36.0% -0.80 3–4 (43%) 2–3 (40%) — +1.02 1978 1668 116.8 — — — — +30 — — 45.7% -0.35 2–1 (67%) 3–1 (75%) — +3.30
26 1977 1583 129.9 — — — — -86 +21 -28 40.0% -0.40 4–4 (50%) 1–3 (25%) — -0.34 1979 1650 106.6 — — — — +23 — — 28.6% -0.86 1–0 0–1 — +0.39
27 1978 1629 127.4 — — — — -82 -94 +53 43.9% -0.27 6–6 (50%) 4–7 (36%) — +1.51 1980 1570 124.2 — — — — +66 -71 +169 38.9% -0.57 2–5 (29%) 5–6 (45%) — -0.40
28 1979 1645 125.5 — — — — -50 -102 +53 47.9% -0.21 2–3 (40%) 5–7 (42%) — +2.00 — — — — — — — — — — — — — — — —
29 1980 1494 113.3 — — — — +7 +34 +158 34.9% -0.97 2–7 (22%) 1–4 (20%) — +3.49 — — — — — — — — — — — — — — — —
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 — — — — — — — — — — — — — — — —
Career — 1683 127.2 — — — — -44 -17 +47 42.3% -0.49 21–33 (39%) 20–25 (44%) 94.5 +4.13 — 1816 130.3 — — — — +20 -141 +86 46.2% -0.25 40–36 (53%) 30–30 (50%) 106.0 +2.79

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.