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

John Alexander vs Byron Bertram H2H: 2-1

John Alexander 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 Alexander leads 1–0 on carpet. Most recently, Byron Bertram won the 1980 Indian Wells Open round of 32 2-6 7-6 6-2.

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John Alexander
AUS Age 75 Right-Handed 190 cm / 6'3"
H2H
2 – 1
3 main draw meetings
Byron Bertram
RSA Age 73 Right-Handed

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Byron Bertram 2-6 7-6 6-2 John Alexander #19 Match data Feb 14, 1980* R32 Indian Wells Open ATP 250 Hard
John Alexander #19 6-1 6-2 Byron Bertram #65 Match data Sep 21, 1977* R64 Los Angeles ATP 250 Hard
John Alexander #32 6-3 6-3 Byron Bertram #65 Match data Mar 18, 1977* R16 St. Louis Wct 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 Alexander #860 #8 0 2,015 567 419 57.5% 0 0 0 0 7 7
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 Alexander Byron Bertram
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
16 1968 27–14 65.9% — 1,630 0 0 1969 0–3 0.0% — 1,467 0 0
17 1969 29–21 58.0% — 1,636 0 0 1970 11–11 50.0% — 1,540 0 0
18 1970 24–14 63.2% — 1,819 0 1 1971 9–13 40.9% — 1,547 0 0
19 1971 44–36 55.0% — 1,816 0 1 1972 2–2 50.0% — 1,536 0 0
20 1972 36–32 52.9% — 1,856 0 1 1973 11–10 52.4% #152 1,617 0 0
21 1973 46–30 60.5% #29 1,917 0 1 1974 15–13 53.6% #156 1,655 0 0
22 1974 38–23 62.3% #26 1,849 0 1 1975 5–8 38.5% #120 1,652 0 0
23 1975 61–24 71.8% #8 1,946 0 2 1976 23–24 48.9% #57 1,737 0 0
24 1976 19–21 47.5% #47 1,841 0 2 1977 21–27 43.8% #87 1,744 0 0
25 1977 48–33 59.3% #21 1,878 0 3 1978 10–11 47.6% #92 1,668 0 0
26 1978 50–31 61.7% #22 1,810 0 3 1979 1–2 33.3% #219 1,649 0 0
27 1979 38–28 57.6% #20 1,798 0 4 1980 7–15 31.8% #150 1,570 0 0
28 1980 10–18 35.7% #100 1,686 0 4 — — — — — — —
29 1981 23–21 52.3% #75 1,744 0 4 — — — — — — —
30 1982 38–21 64.4% #31 1,792 0 6 — — — — — — —
31 1983 24–25 49.0% #77 1,658 0 7 — — — — — — —
32 1984 12–21 36.4% #142 1,565 0 7 — — — — — — —
33 1985 0–6 0.0% #405 1,492 0 7 — — — — — — —

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 Alexander 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 1968 0 1 1 0.0% 22 10 32 68.8% 5 3 8 62.5% — — — — 1969 0 3 3 0.0% — — — — — — — — — — — —
17 1969 0 1 1 0.0% 7 7 14 50.0% 21 12 33 63.6% 1 1 2 50.0% 1970 1 3 4 25.0% 2 3 5 40.0% 8 5 13 61.5% — — — —
18 1970 4 1 5 80.0% 10 6 16 62.5% 6 6 12 50.0% 4 1 5 80.0% 1971 4 5 9 44.4% 0 2 2 0.0% 5 4 9 55.6% 0 2 2 0.0%
19 1971 21 12 33 63.6% 12 9 21 57.1% 4 5 9 44.4% 7 10 17 41.2% 1972 1 1 2 50.0% — — — — 1 1 2 50.0% — — — —
20 1972 11 10 21 52.4% 9 5 14 64.3% 6 3 9 66.7% 10 14 24 41.7% 1973 3 3 6 50.0% 1 3 4 25.0% 6 3 9 66.7% 1 1 2 50.0%
21 1973 8 6 14 57.1% 14 11 25 56.0% 3 3 6 50.0% 21 10 31 67.7% 1974 3 1 4 75.0% 1 4 5 20.0% 1 1 2 50.0% 10 7 17 58.8%
22 1974 12 5 17 70.6% 13 6 19 68.4% 9 5 14 64.3% 4 7 11 36.4% 1975 1 3 4 25.0% 3 3 6 50.0% 1 1 2 50.0% 0 1 1 0.0%
23 1975 13 3 16 81.3% 20 8 28 71.4% 6 3 9 66.7% 22 10 32 68.8% 1976 7 4 11 63.6% 13 15 28 46.4% 0 1 1 0.0% 3 4 7 42.9%
24 1976 3 5 8 37.5% 9 7 16 56.3% 2 2 4 50.0% 5 7 12 41.7% 1977 7 10 17 41.2% 4 7 11 36.4% 6 3 9 66.7% 4 7 11 36.4%
25 1977 4 5 9 44.4% 19 6 25 76.0% 18 8 26 69.2% 7 14 21 33.3% 1978 0 3 3 0.0% 0 1 1 0.0% 0 1 1 0.0% 10 6 16 62.5%
26 1978 2 5 7 28.6% 24 10 34 70.6% 18 6 24 75.0% 6 10 16 37.5% 1979 0 1 1 0.0% — — — — — — — — 1 1 2 50.0%
27 1979 12 5 17 70.6% 13 8 21 61.9% 6 6 12 50.0% 7 9 16 43.8% 1980 4 6 10 40.0% 0 3 3 0.0% 1 4 5 20.0% 2 2 4 50.0%
28 1980 4 5 9 44.4% 3 2 5 60.0% 1 3 4 25.0% 2 8 10 20.0% — — — — — — — — — — — — — — — — —
29 1981 7 9 16 43.8% 8 6 14 57.1% 7 5 12 58.3% 1 1 2 50.0% — — — — — — — — — — — — — — — — —
30 1982 6 5 11 54.5% 10 7 17 58.8% 16 5 21 76.2% 6 4 10 60.0% — — — — — — — — — — — — — — — — —
31 1983 7 5 12 58.3% 11 9 20 55.0% 2 6 8 25.0% 4 5 9 44.4% — — — — — — — — — — — — — — — — —
32 1984 4 6 10 40.0% 4 5 9 44.4% 3 7 10 30.0% 1 3 4 25.0% — — — — — — — — — — — — — — — — —
33 1985 0 3 3 0.0% 0 1 1 0.0% 0 2 2 0.0% — — — — — — — — — — — — — — — — — — — — —
Career — 118 92 210 56.2% 208 123 331 62.8% 133 90 223 59.6% 108 114 222 48.6% — 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 Alexander 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 1968 1630 115.5 — — — — — +31 -45 58.8% +0.55 5–3 (63%) — — -0.25 1969 1467 97.7 — — — — +26 — — 20.0% -2.20 — — — -0.10
17 1969 1636 120.9 — — — — -112 +1 +83 58.9% +0.61 5–8 (38%) — — +3.75 1970 1541 119.6 — — — — -55 -40 +104 49.1% -0.21 0–1 — — +0.86
18 1970 1820 138.4 — — — — -87 -42 -115 59.1% +0.62 6–6 (50%) 2–1 (67%) — +1.24 1971 1547 108.9 — — — — -39 — +97 47.5% -0.13 2–7 (22%) 3–2 (60%) — +2.12
19 1971 1817 144.4 — — — — -5 +9 -82 55.2% +0.33 7–16 (30%) 18–12 (60%) — -3.21 1972 1536 105.5 — — — — — — — 54.5% +1.27 — 0–1 — +0.31
20 1972 1856 153.5 — — — — -29 +48 -73 53.7% +0.51 13–16 (45%) 13–24 (35%) — -8.33 1973 1618 113.6 — — — — +1 -147 +39 49.0% -0.12 5–3 (63%) 2–2 (50%) — +1.62
21 1973 1917 150.8 — — — — +39 -78 -95 57.3% +0.44 13–12 (52%) 19–14 (58%) — -3.88 1974 1655 122.3 — — — — +78 -202 — 53.2% +0.08 5–3 (63%) 5–2 (71%) — +2.72
22 1974 1850 146.4 — — — — +27 +47 +21 60.4% +0.86 9–8 (53%) 12–14 (46%) — +0.21 1975 1653 123.3 — — — — +13 -136 — 44.1% -0.26 2–3 (40%) 3–2 (60%) — -0.16
23 1975 1946 155.4 — — — — +66 +20 -94 66.4% +1.04 15–9 (63%) 23–11 (68%) — -0.90 1976 1737 135.3 — — — — +19 -143 — 48.7% -0.04 10–8 (56%) 5–6 (45%) — -0.81
24 1976 1841 150.1 — — — — +55 +53 -1 48.4% -0.02 5–7 (42%) 8–12 (40%) — -2.95 1977 1745 136.0 — — — — -14 -174 +50 43.4% -0.53 11–5 (69%) 4–7 (36%) — -2.84
25 1977 1878 156.4 — — — — -38 +45 +16 58.5% +0.69 13–18 (42%) 16–15 (52%) — -1.53 1978 1668 116.8 — — — — +30 — — 45.7% -0.35 2–1 (67%) 3–1 (75%) — +3.30
26 1978 1810 149.4 — — — — -79 +125 +104 58.6% +0.69 15–14 (52%) 10–14 (42%) — +2.66 1979 1650 106.6 — — — — +23 — — 28.6% -0.86 1–0 0–1 — +0.39
27 1979 1799 156.8 — — — — +64 +143 -3 53.0% +0.25 15–10 (60%) 15–13 (54%) — -3.64 1980 1570 124.2 — — — — +66 -71 +169 38.9% -0.57 2–5 (29%) 5–6 (45%) — -0.40
28 1980 1687 138.0 — — — — +72 +209 +52 38.8% -0.58 4–5 (44%) 7–8 (47%) — -0.32 — — — — — — — — — — — — — — — —
29 1981 1744 136.6 — — — — -49 +128 0 52.7% +0.29 7–8 (47%) 9–11 (45%) — +0.63 — — — — — — — — — — — — — — — —
30 1982 1792 141.1 — — — — -49 +33 +52 57.6% +0.56 17–7 (71%) 13–14 (48%) — +0.78 — — — — — — — — — — — — — — — —
31 1983 1658 134.7 — — — — +55 +150 +81 47.5% +0.09 7–5 (58%) 10–14 (42%) — +1.71 — — — — — — — — — — — — — — — —
32 1984 1565 130.2 — — — — +79 +244 +37 39.0% -0.49 5–6 (45%) 6–10 (38%) — -0.48 — — — — — — — — — — — — — — — —
33 1985 1493 102.7 — — — — +110 — — 13.3% -2.13 0–1 1–2 (33%) — -0.02 — — — — — — — — — — — — — — — —
Career — 2016 150.6 — — — — +12 +56 +17 55.6% +0.46 161–159 (50%) 182–189 (49%) 95.7 -1.49 — 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.