H2H data updated: 2026-07-14 14:15 UTC
C. Johnstone vs Sammy Giammalva Jr H2H: 0-1
Sammy Giammalva Jr holds a 1–0 lead over C. Johnstone in their ATP head-to-head. Across 1 main-draw meeting, Sammy Giammalva Jr leads 1–0 on grass. Most recently, Sammy Giammalva Jr won the 1982 Australian Open second round 3-6 6-1 7-5 2-6 6-4.
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AUS
Age 65
Right-Handed
175 cm / 5'9"
H2H
0
–
1
1 main draw meetings
Age 63
Right-Handed
H2H Match Log
| Date | Tournament | Category | Round | Surface | Winner | Score | Loser | Match |
|---|---|---|---|---|---|---|---|---|
| Dec 6, 1982* | Australian Open | Grand Slam | R64 | Grass | Sammy Giammalva Jr | 3-6 6-1 7-5 2-6 6-4 | C. Johnstone | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| C. Johnstone | #721 | #70 | 0 | 1,631 | 36 | 63 | 36.4% | 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 | C. Johnstone | Sammy Giammalva Jr | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 18 | 1979 | 0–2 | 0.0% | #339 | 1,463 | 0 | 0 | — | — | — | — | — | — | — |
| 19 | 1980 | 4–9 | 30.8% | #137 | 1,500 | 0 | 0 | — | — | — | — | — | — | — |
| 20 | 1981 | 11–15 | 42.3% | #93 | 1,587 | 0 | 0 | — | — | — | — | — | — | — |
| 21 | 1982 | 15–18 | 45.5% | #94 | 1,604 | 0 | 0 | — | — | — | — | — | — | — |
| 22 | 1983 | 6–15 | 28.6% | #100 | 1,538 | 0 | 0 | — | — | — | — | — | — | — |
| 23 | 1984 | 0–4 | 0.0% | #311 | 1,485 | 0 | 0 | — | — | — | — | — | — | — |