H2H data updated: 2026-07-19 14:15 UTC
Mike Cahill vs Zan Guerry H2H: 0-1
Zan Guerry holds a 1–0 lead over Mike Cahill in their ATP head-to-head. Across 1 main-draw meeting, Zan Guerry leads 1–0 on clay. Most recently, Zan Guerry won the 1977 US Open second round 6-4 7-5.
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USA
Age 74
Right-Handed
183 cm / 6'0"
H2H
0
–
1
1 main draw meetings
USA
Age 77
Right-Handed
H2H Match Log
| Date | Tournament | Category | Round | Surface | Winner | Score | Loser | Match |
|---|---|---|---|---|---|---|---|---|
| Sep 4, 1977* | US Open | Grand Slam | R64 | Clay | Zan Guerry | 6-4 7-5 | Mike Cahill | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mike Cahill | #448 | #58 | 0 | 1,727 | 100 | 155 | 39.2% | 0 | 0 | 0 | 0 | 0 | 0 |
| Zan Guerry | #490 | #98 | 0 | 1,599 | 42 | 78 | 35.0% | 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 | Mike Cahill | Zan Guerry | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 19 | — | — | — | — | — | — | — | 1968 | 5–7 | 41.7% | — | 1,479 | 0 | 0 |
| 20 | — | — | — | — | — | — | — | 1969 | 8–10 | 44.4% | — | 1,528 | 0 | 0 |
| 21 | — | — | — | — | — | — | — | 1970 | 1–4 | 20.0% | — | 1,494 | 0 | 0 |
| 22 | 1974 | 4–4 | 50.0% | #138 | 1,539 | 0 | 0 | 1971 | 4–6 | 40.0% | — | 1,524 | 0 | 0 |
| 23 | 1975 | 10–17 | 37.0% | #79 | 1,613 | 0 | 0 | 1972 | 5–7 | 41.7% | — | 1,521 | 0 | 0 |
| 24 | 1976 | 13–26 | 33.3% | #136 | 1,597 | 0 | 0 | 1973 | 3–5 | 37.5% | #203 | 1,522 | 0 | 0 |
| 25 | 1977 | 10–18 | 35.7% | #115 | 1,577 | 0 | 0 | 1974 | 1–1 | 50.0% | #228 | 1,542 | 0 | 0 |
| 26 | 1978 | 17–20 | 45.9% | #69 | 1,691 | 0 | 0 | 1975 | 2–2 | 50.0% | #205 | 1,570 | 0 | 0 |
| 27 | 1979 | 18–25 | 41.9% | #113 | 1,677 | 0 | 0 | 1976 | 0–6 | 0.0% | #176 | 1,504 | 0 | 0 |
| 28 | 1980 | 10–19 | 34.5% | #189 | 1,600 | 0 | 0 | 1977 | 8–16 | 33.3% | #109 | 1,563 | 0 | 0 |
| 29 | 1981 | 6–10 | 37.5% | #100 | 1,628 | 0 | 0 | 1978 | 2–7 | 22.2% | #279 | 1,522 | 0 | 0 |
| 30 | 1982 | 12–14 | 46.2% | #98 | 1,643 | 0 | 0 | 1979 | 1–3 | 25.0% | #326 | 1,517 | 0 | 0 |
| 31 | 1983 | 0–2 | 0.0% | #108 | 1,620 | 0 | 0 | 1980 | 1–2 | 33.3% | — | 1,501 | 0 | 0 |
| 32 | — | — | — | — | — | — | — | 1981 | 0–1 | 0.0% | #594 | 1,494 | 0 | 0 |
| 33 | — | — | — | — | — | — | — | 1982 | 1–1 | 50.0% | — | 1,515 | 0 | 0 |