Guzman, Sergio
Current rating: 1486
Record: 3-4
| Grand Prix San Diego 2015 (ORI standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 243 | Martinez, Seth (1449) | Won 2-1 | +171517 |
| 2standard | 19 | Apuzzo, Randy (1518) | Lost 0-2 | -181499 |
| 3standard | 487 | Paige, Cody (1502) | Won 2-0 | +181517 |
| 4standard | 193 | Reis, Matthew (1648) | Won 2-1 | +211538 |
| 5standard | 293 | Mandelblatt, Zach (1699) | Lost 0-2 | -161522 |
| 6standard | 387 | Lacy lll, James (1522) | Lost 1-2 | -181504 |
| 7standard | 379 | Boyer, John (1468) | Lost 0-2 | -181486 |
| average opponent: 1544record: 3-4 | new rating: 1486 | |||