Head to head
0
Clay
1
Carl Johnson's wins on the left · Miguel Olvera's on the right · bar lengths share one scale
All meetings (1)
| 1968 | St. Petersburg | Clay | R32 | Miguel Olvera | 6-0 6-1 |
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.