H2H data updated: 2026-07-19 02:51 UTC
Jeff Borowiak vs Zan Guerry H2H: 2-0
Jeff Borowiak holds a 2–0 lead over Zan Guerry in their ATP head-to-head. Across 2 main-draw meetings, Jeff Borowiak leads 1–0 on clay and 1–0 on grass. Most recently, Jeff Borowiak won the 1978 Indianapolis fourth round 5-7 6-3 6-4.
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USA
Age 76
Right-Handed
193 cm / 6'4"
H2H
2
–
0
2 main draw meetings
USA
Age 77
Right-Handed
H2H Match Log
| Date | Tournament | Category | Round | Surface | Winner | Score | Loser | Match |
|---|---|---|---|---|---|---|---|---|
| Aug 7, 1978 | Indianapolis | ATP 250 | R16 | Clay | Jeff Borowiak | 5-7 6-3 6-4 | Zan Guerry | Match data |
| Sep 3, 1971* | US Open | Grand Slam | R128 | Grass | Jeff Borowiak | 6-3 3-6 6-1 7-5 | Zan Guerry | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Jeff Borowiak | #920 | #20 | 0 | 1,941 | 289 | 305 | 48.7% | 0 | 1 | 0 | 0 | 4 | 5 |
| 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 | Jeff Borowiak | Zan Guerry | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 18 | 1968 | 6–10 | 37.5% | — | 1,471 | 0 | 0 | — | — | — | — | — | — | — |
| 19 | 1969 | 3–2 | 60.0% | — | 1,512 | 0 | 0 | 1968 | 5–7 | 41.7% | — | 1,479 | 0 | 0 |
| 20 | 1970 | 6–7 | 46.2% | — | 1,566 | 0 | 0 | 1969 | 8–10 | 44.4% | — | 1,528 | 0 | 0 |
| 21 | 1971 | 26–20 | 56.5% | — | 1,782 | 0 | 0 | 1970 | 1–4 | 20.0% | — | 1,494 | 0 | 0 |
| 22 | 1972 | 20–28 | 41.7% | — | 1,828 | 0 | 0 | 1971 | 4–6 | 40.0% | — | 1,524 | 0 | 0 |
| 23 | 1973 | 21–33 | 38.9% | #82 | 1,732 | 0 | 0 | 1972 | 5–7 | 41.7% | — | 1,521 | 0 | 0 |
| 24 | 1974 | 34–27 | 55.7% | #40 | 1,853 | 0 | 2 | 1973 | 3–5 | 37.5% | #203 | 1,522 | 0 | 0 |
| 25 | 1975 | 32–27 | 54.2% | #48 | 1,804 | 0 | 2 | 1974 | 1–1 | 50.0% | #228 | 1,542 | 0 | 0 |
| 26 | 1976 | 18–23 | 43.9% | #60 | 1,720 | 0 | 2 | 1975 | 2–2 | 50.0% | #205 | 1,570 | 0 | 0 |
| 27 | 1977 | 45–23 | 66.2% | #25 | 1,812 | 0 | 5 | 1976 | 0–6 | 0.0% | #176 | 1,504 | 0 | 0 |
| 28 | 1978 | 16–25 | 39.0% | #98 | 1,671 | 0 | 5 | 1977 | 8–16 | 33.3% | #109 | 1,563 | 0 | 0 |
| 29 | 1979 | 5–13 | 27.8% | #125 | 1,614 | 0 | 5 | 1978 | 2–7 | 22.2% | #279 | 1,522 | 0 | 0 |
| 30 | 1980 | 5–5 | 50.0% | #189 | 1,668 | 0 | 5 | 1979 | 1–3 | 25.0% | #326 | 1,517 | 0 | 0 |
| 31 | 1981 | 18–19 | 48.6% | #52 | 1,763 | 0 | 5 | 1980 | 1–2 | 33.3% | — | 1,501 | 0 | 0 |
| 32 | 1982 | 21–20 | 51.2% | #94 | 1,740 | 0 | 5 | 1981 | 0–1 | 0.0% | #594 | 1,494 | 0 | 0 |
| 33 | 1983 | 13–19 | 40.6% | #98 | 1,651 | 0 | 5 | 1982 | 1–1 | 50.0% | — | 1,515 | 0 | 0 |
| 34 | 1984 | 0–4 | 0.0% | #520 | 1,598 | 0 | 5 | — | — | — | — | — | — | — |