Guerra, Yannis S
Current rating: 1498
Record: 3-3
| Grand Prix Chicago 2012 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 279 | Costello, Bryan C (1500) | Won 2-0 | +181518 |
| 2modern | 48 | Schmidt, Jeremiah J (1449) | Won 2-0 | +171535 |
| 3modern | 186 | Morrill, Alex (1512) | Lost 0-2 | -191516 |
| 4modern | 335 | Hurst, Andrew (1511) | Lost 0-2 | -181498 |
| 5modern | 298 | Snodgrass, Brad (1499) | Lost 0-2 | -181480 |
| 6modern | 412 | Quiroz, Rob (1481) | Won 2-0 | +181498 |
| average opponent: 1492record: 3-3 | new rating: 1498 | |||