John McEnroe defeated Alexander Mronz 6-1 6-2 in the 1991 Philadelphia round of 32 on carpet courts.
Match Statistics
| Stat | John McEnroe | Alexander Mronz |
| Aces | 7 | 4 |
| Double faults | 2 | 3 |
| First serve % | 55 | 52 |
| First serve points won % | 86 | 64 |
| Second serve points won % | 78 | 30 |
| Break points saved % | — | 56 |
| Break points converted % | 44 | — |
| Service points won % | 82 | 48 |
| Return points won % | 52 | 18 |
| Total points won % | 66 | 34 |
Player Comparison
| Field | John McEnroe | Alexander Mronz |
| Country |
USA
|
GER
|
| Birth date | Feb 16, 1959 | Apr 7, 1965 |
| Age | 31 | 25 |
| Height | 180 cm | 188 cm |
| Handedness | Left-Handed | Right-Handed |
| Backhand style | One-Handed Backhand | — |
| Ranking (entering) | 17 | 88 |
| Ranking points (entering) | 1,096 | 412 |
| Elo (entering) | 1,955 | 1,630 |
| Current career W-L | 835–191 | 62–107 |
| Current career earnings | $12,552,132 | $830,234 |
Path
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