Mariano, Jonathan
Current rating: 1448
Record: 1-4-1
| Grand Prix San Jose 2017 (AER limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 477 | McCall, Joseph (1500) | Lost 0-2 | -181482 |
| 2sealed | 712 | Auditore, Ezio (1486) | Lost 0-2 | -181464 |
| 3sealed | 900 | Cook, James (1527) | Lost 0-2 | -171447 |
| 4sealed | 854 | Cao, John (1448) | Won 2-0 | +181465 |
| 6sealed | 615 | Darley, David (1539) | Lost 0-2 | -161449 |
| 7sealed | 628 | Alcover, Zackery (1434) | Draw 1-1 | -11448 |
| average opponent: 1489record: 1-4-1 | new rating: 1448 | |||