H2H data updated: 2026-07-14 14:15 UTC
P. Chamberlin vs Sammy Giammalva Jr H2H: 1-0
P. Chamberlin holds a 1–0 lead over Sammy Giammalva Jr in their ATP head-to-head. Across 1 main-draw meeting, P. Chamberlin leads 1–0 on grass. Most recently, P. Chamberlin won the 1989 Queen's Club second round 6-4 4-6 6-2.
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USA
Age 64
Right-Handed
178 cm / 5'10"
H2H
1
–
0
1 main draw meetings
Age 63
Right-Handed
H2H Match Log
| Date | Tournament | Category | Round | Surface | Winner | Score | Loser | Match |
|---|---|---|---|---|---|---|---|---|
| Jun 14, 1989* | Queen's Club | ATP 250 | R64 | Grass | P. Chamberlin | 6-4 4-6 6-2 | Sammy Giammalva Jr | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| P. Chamberlin | #1,118 | #46 | 419 | 1,751 | 57 | 67 | 46.0% | 0 | 0 | 0 | 0 | 0 | 0 |
| Sammy Giammalva Jr | — | — | — | 1,802 | — | — | — | 0 | 0 | 0 | 0 | 2 | 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 | P. Chamberlin | Sammy Giammalva Jr | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 18 | 1980 | 0–1 | 0.0% | — | 1,479 | 0 | 0 | — | — | — | — | — | — | — |
| 24 | 1986 | 3–2 | 60.0% | #205 | 1,523 | 0 | 0 | — | — | — | — | — | — | — |
| 25 | 1987 | 5–6 | 45.5% | #213 | 1,560 | 0 | 0 | — | — | — | — | — | — | — |
| 26 | 1988 | 7–13 | 35.0% | #174 | 1,543 | 0 | 0 | — | — | — | — | — | — | — |
| 27 | 1989 | 28–21 | 57.1% | #58 | 1,696 | 0 | 0 | — | — | — | — | — | — | — |
| 28 | 1990 | 14–23 | 37.8% | #149 | 1,568 | 0 | 0 | — | — | — | — | — | — | — |
| 29 | 1991 | 0–1 | 0.0% | #1106 | 1,555 | 0 | 0 | — | — | — | — | — | — | — |