Head to head
0
Clay
1
1
Carpet
0
John Alexander's wins on the left · Antonio Zugarelli's on the right · bar lengths share one scale
All meetings (2)
| 1978 | St. Louis WCT | Carpet | R32 | John Alexander | 7-6 5-7 7-5 |
| 1971 | Rome WCT | Clay | R64 | Antonio Zugarelli | 6-4 1-6 6-3 |
Methodology
Head-to-head totals and surface splits exclude walkovers (no match was played), which follows ATP convention — walkover meetings still appear in the match list. The momentum chart plots the running lead across all counted meetings, oldest to newest.