H2H data updated: 2026-07-18 02:15 UTC
Karl Meiler vs John McDonald H2H: 1-0
Karl Meiler holds a 1–0 lead over John McDonald in their ATP head-to-head. Across 1 main-draw meeting, Karl Meiler leads 1–0 on clay. Most recently, Karl Meiler won the 1970 Berlin second round 6-0 6-2.
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GER
Right-Handed
178 cm / 5'10"
H2H
1
–
0
1 main draw meetings
NZL
Right-Handed
H2H Match Log
| Date | Tournament | Category | Round | Surface | Winner | Score | Loser | Match |
|---|---|---|---|---|---|---|---|---|
| May 13, 1970* | Berlin | ATP 250 | R64 | Clay | Karl Meiler | 6-0 6-2 | John McDonald | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Karl Meiler | #920 | #20 | 0 | 1,894 | 252 | 189 | 57.1% | 0 | 0 | 0 | 0 | 4 | 4 |
| John McDonald | — | #594 | 0 | 1,516 | 7 | 14 | 33.3% | 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.
| Karl Meiler | John McDonald | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles |
| 1968 | 5–3 | 62.5% | — | 1,555 | 0 | 0 | 1968 | 4–7 | 36.4% | — | 1,457 | 0 | 0 |
| 1970 | 5–6 | 45.5% | — | 1,560 | 0 | 0 | 1969 | 2–3 | 40.0% | — | 1,460 | 0 | 0 |
| 1971 | 1–5 | 16.7% | — | 1,506 | 0 | 0 | 1970 | 1–3 | 25.0% | — | 1,454 | 0 | 0 |
| 1972 | 15–5 | 75.0% | — | 1,722 | 0 | 1 | 1971 | 0–1 | 0.0% | — | 1,450 | 0 | 0 |
| 1973 | 47–28 | 62.7% | #32 | 1,793 | 0 | 1 | — | — | — | — | — | — | — |
| 1974 | 42–26 | 61.8% | #67 | 1,777 | 0 | 3 | — | — | — | — | — | — | — |
| 1975 | 47–24 | 66.2% | #31 | 1,841 | 0 | 3 | — | — | — | — | — | — | — |
| 1976 | 26–23 | 53.1% | #54 | 1,818 | 0 | 3 | — | — | — | — | — | — | — |
| 1977 | 33–21 | 61.1% | #35 | 1,788 | 0 | 4 | — | — | — | — | — | — | — |
| 1978 | 8–12 | 40.0% | #127 | 1,699 | 0 | 4 | — | — | — | — | — | — | — |
| 1979 | 8–9 | 47.1% | #169 | 1,653 | 0 | 4 | — | — | — | — | — | — | — |
| 1980 | 0–4 | 0.0% | #238 | 1,603 | 0 | 4 | — | — | — | — | — | — | — |
| 1981 | 3–6 | 33.3% | #238 | 1,576 | 0 | 4 | — | — | — | — | — | — | — |
| 1982 | 5–9 | 35.7% | #270 | 1,554 | 0 | 4 | — | — | — | — | — | — | — |
| 1983 | 4–6 | 40.0% | #142 | 1,563 | 0 | 4 | — | — | — | — | — | — | — |
| 1984 | 2–1 | 66.7% | #180 | 1,588 | 0 | 4 | — | — | — | — | — | — | — |
| 1985 | 1–1 | 50.0% | #452 | 1,590 | 0 | 4 | — | — | — | — | — | — | — |