BOL-ch
La Paz 1956
| Date | Players | Type | Elo Average | Games | Rounds |
| 1956 | 3 | Tourn | 2 | 7 |
| Name | ELO | Points | ||
| Arraya, Jorge | 2.0 | |||
| Rios, Humberto | 0.0 | |||
| Ballon, Luis A | 0.0 | |||
BOL-ch Games
| White | Black | Result | Round | Date | Opening | View |
| Arraya, J | Rios, H | 1-0  |
? | 1956 | C41 Philidor's defence |   |
| Ballon, L | Arraya, J | 0-1 |
? | 1956 | B30 Sicilian defence |   |