H2H data updated: 2026-07-19 14:15 UTC
Gustavo Guerrero vs John Alexander H2H: 0-1
John Alexander holds a 1–0 lead over Gustavo Guerrero in their ATP head-to-head. Across 1 main-draw meeting, John Alexander leads 1–0 on clay. Most recently, John Alexander won the 1980 Florence third round 7-6 4-6 6-1.
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ARG
Age 66
Left-Handed
180 cm / 5'11"
H2H
0
–
1
1 main draw meetings
AUS
Age 75
Right-Handed
190 cm / 6'3"
H2H Match Log
| Date | Tournament | Category | Round | Surface | Winner | Score | Loser | Match |
|---|---|---|---|---|---|---|---|---|
| May 15, 1980* | Florence | ATP 250 | R32 | Clay | John Alexander | 7-6 4-6 6-1 | Gustavo Guerrero | Match data |
* Estimated match date where the exact historical date is unavailable.
Career Comparison
| Player | Current | Peak | Pts | Elo | W | L | Win % | GS | 1000 | Finals | 500 | 250 | Titles |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Gustavo Guerrero | #1,235 | #78 | 9 | 1,523 | 6 | 20 | 23.1% | 0 | 0 | 0 | 0 | 0 | 0 |
| John Alexander | #860 | #8 | 0 | 2,067 | 579 | 422 | 57.8% | 0 | 0 | 0 | 0 | 9 | 9 |
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 | Gustavo Guerrero | John Alexander | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 11 | 1971 | 0–1 | 0.0% | — | 1,479 | 0 | 0 | — | — | — | — | — | — | — |
| 16 | — | — | — | — | — | — | — | 1968 | 27–14 | 65.9% | — | 1,647 | 0 | 0 |
| 17 | — | — | — | — | — | — | — | 1969 | 29–21 | 58.0% | — | 1,641 | 0 | 0 |
| 18 | — | — | — | — | — | — | — | 1970 | 24–14 | 63.2% | — | 1,819 | 0 | 1 |
| 19 | 1979 | 0–1 | 0.0% | #347 | 1,467 | 0 | 0 | 1971 | 44–36 | 55.0% | — | 1,815 | 0 | 1 |
| 20 | 1980 | 3–4 | 42.9% | #84 | 1,494 | 0 | 0 | 1972 | 36–32 | 52.9% | — | 1,856 | 0 | 1 |
| 21 | 1981 | 1–9 | 10.0% | #100 | 1,442 | 0 | 0 | 1973 | 46–30 | 60.5% | #29 | 1,915 | 0 | 1 |
| 22 | — | — | — | — | — | — | — | 1974 | 38–24 | 61.3% | #26 | 1,839 | 0 | 1 |
| 23 | 1983 | 0–1 | 0.0% | #337 | 1,437 | 0 | 0 | 1975 | 67–24 | 73.6% | #8 | 1,957 | 0 | 3 |
| 24 | 1984 | 0–1 | 0.0% | #320 | 1,432 | 0 | 0 | 1976 | 19–21 | 47.5% | #47 | 1,851 | 0 | 3 |
| 25 | 1985 | 1–1 | 50.0% | #201 | 1,444 | 0 | 0 | 1977 | 48–33 | 59.3% | #18 | 1,875 | 0 | 4 |
| 26 | 1986 | 0–1 | 0.0% | #312 | 1,431 | 0 | 0 | 1978 | 50–31 | 61.7% | #22 | 1,810 | 0 | 4 |
| 27 | 1987 | 1–1 | 50.0% | #266 | 1,446 | 0 | 0 | 1979 | 43–28 | 60.6% | #20 | 1,815 | 0 | 6 |
| 28 | — | — | — | — | — | — | — | 1980 | 11–20 | 35.5% | #100 | 1,702 | 0 | 6 |
| 29 | — | — | — | — | — | — | — | 1981 | 23–21 | 52.3% | #75 | 1,746 | 0 | 6 |
| 30 | — | — | — | — | — | — | — | 1982 | 38–21 | 64.4% | #31 | 1,791 | 0 | 8 |
| 31 | — | — | — | — | — | — | — | 1983 | 24–25 | 49.0% | #77 | 1,656 | 0 | 9 |
| 32 | — | — | — | — | — | — | — | 1984 | 12–21 | 36.4% | #142 | 1,564 | 0 | 9 |
| 33 | — | — | — | — | — | — | — | 1985 | 0–6 | 0.0% | #405 | 1,491 | 0 | 9 |