Head to head
4
Clay
0
1
Carpet
0
Joaquin Loyo-Mayo's wins on the left · Rejean Genois's on the right · bar lengths share one scale
All meetings (5)
| 1976 | Davis Cup AME PR: CAN vs MEX | Carpet | RR | Joaquin Loyo-Mayo | 6-3 9-7 3-6 6-4 |
| 1974 | Davis Cup AME PR: CAR vs USA | Clay | RR | Joaquin Loyo-Mayo | 4-6 6-1 6-2 8-6 |
| 1974 | Toronto-2 | Clay | R64 | Joaquin Loyo-Mayo | 6-2 6-0 |
| 1973 | Davis Cup AME PR: MEX vs CAN | Clay | RR | Joaquin Loyo-Mayo | 6-4 10-8 3-6 6-2 |
| 1973 | Davis Cup AME PR: MEX vs CAN | Clay | RR | Joaquin Loyo-Mayo | 6-4 10-8 3-6 6-2 |
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.