H2H data updated: 2026-08-31 00:00 UTC

John Alexander vs Robert Bettauer H2H: 1-0

John Alexander holds a 1–0 lead over Robert Bettauer in their ATP head-to-head. Across 1 main-draw meeting, John Alexander leads 1–0 on clay. Most recently, John Alexander won the 1977 Canadian Open round of 64 6-0 6-1.

AUS Age 75 Right-Handed 190 cm / 6'3"
H2H
1 0
1 main draw meetings
CAN Age 70 Right-Handed 175 cm / 5'9"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
John Alexander #21 6-0 6-1 Robert Bettauer Match data Aug 18, 1977* R64 Canadian Open 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 Alexander #860 #8 0 2,015 567 419 57.5% 0 0 0 0 7 7
Robert Bettauer #457 #397 0 1,500 0 3 0.0% 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 Robert Bettauer
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
16 1968 27–14 65.9% 1,630 0 0
17 1969 29–21 58.0% 1,636 0 0
18 1970 24–14 63.2% 1,819 0 1
19 1971 44–36 55.0% 1,816 0 1
20 1972 36–32 52.9% 1,856 0 1
21 1973 46–30 60.5% #29 1,917 0 1 1977 0–1 0.0% 1,497 0 0
22 1974 38–23 62.3% #26 1,849 0 1 1978 0–1 0.0% #555 1,491 0 0
23 1975 61–24 71.8% #8 1,946 0 2 1979 0–1 0.0% #579 1,475 0 0
24 1976 19–21 47.5% #47 1,841 0 2
25 1977 48–33 59.3% #21 1,878 0 3
26 1978 50–31 61.7% #22 1,810 0 3
27 1979 38–28 57.6% #20 1,798 0 4
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 Robert Bettauer
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%
17 1969 0 1 1 0.0% 7 7 14 50.0% 21 12 33 63.6% 1 1 2 50.0%
18 1970 4 1 5 80.0% 10 6 16 62.5% 6 6 12 50.0% 4 1 5 80.0%
19 1971 21 12 33 63.6% 12 9 21 57.1% 4 5 9 44.4% 7 10 17 41.2%
20 1972 11 10 21 52.4% 9 5 14 64.3% 6 3 9 66.7% 10 14 24 41.7%
21 1973 8 6 14 57.1% 14 11 25 56.0% 3 3 6 50.0% 21 10 31 67.7% 1977 0 1 1 0.0%
22 1974 12 5 17 70.6% 13 6 19 68.4% 9 5 14 64.3% 4 7 11 36.4% 1978 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% 1979 0 1 1 0.0%
24 1976 3 5 8 37.5% 9 7 16 56.3% 2 2 4 50.0% 5 7 12 41.7%
25 1977 4 5 9 44.4% 19 6 25 76.0% 18 8 26 69.2% 7 14 21 33.3%
26 1978 2 5 7 28.6% 24 10 34 70.6% 18 6 24 75.0% 6 10 16 37.5%
27 1979 12 5 17 70.6% 13 8 21 61.9% 6 6 12 50.0% 7 9 16 43.8%
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% 0 1 1 0.0% 0 2 2 0.0%

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 Robert Bettauer
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
17 1969 1636 120.9 -112 +1 +83 58.9% +0.61 5–8 (38%) +3.75
18 1970 1820 138.4 -87 -42 -115 59.1% +0.62 6–6 (50%) 2–1 (67%) +1.24
19 1971 1817 144.4 -5 +9 -82 55.2% +0.33 7–16 (30%) 18–12 (60%) -3.21
20 1972 1856 153.5 -29 +48 -73 53.7% +0.51 13–16 (45%) 13–24 (35%) -8.33
21 1973 1917 150.8 +39 -78 -95 57.3% +0.44 13–12 (52%) 19–14 (58%) -3.88 1977 1497 101.4 0.0% -5.50 -0.22
22 1974 1850 146.4 +27 +47 +21 60.4% +0.86 9–8 (53%) 12–14 (46%) +0.21 1978 1492 99.9 0.0% -4.50 -0.04
23 1975 1946 155.4 +66 +20 -94 66.4% +1.04 15–9 (63%) 23–11 (68%) -0.90 1979 1475 97.4 0.0% -2.50 +0.29
24 1976 1841 150.1 +55 +53 -1 48.4% -0.02 5–7 (42%) 8–12 (40%) -2.95
25 1977 1878 156.4 -38 +45 +16 58.5% +0.69 13–18 (42%) 16–15 (52%) -1.53
26 1978 1810 149.4 -79 +125 +104 58.6% +0.69 15–14 (52%) 10–14 (42%) +2.66
27 1979 1799 156.8 +64 +143 -3 53.0% +0.25 15–10 (60%) 15–13 (54%) -3.64
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 1500 99.4 0.0% -4.17 +1.00

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.