Cortezo, Guillermo
Current rating: 1519
Record: 5-4
| Grand Prix Manila 2015 (KTK standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 294 | Tan, Archie (1450) | Lost 0-2 | -191481 |
| 2standard | 364 | Acode, Janapril Clark (1482) | Lost 1-2 | -181463 |
| 3standard | 610 | Quina, Mark Emmanuel (1463) | Lost 1-2 | -181445 |
| 4standard | 668 | Tungol, John Paulo (1446) | Won 2-0 | +181463 |
| 5standard | 542 | Brutas, Reige Herald (1401) | Won 2-0 | +171480 |
| 6standard | 507 | Acordon, Van Lauren (1418) | Won 2-1 | +171497 |
| 7standard | 358 | Othman, Azlan (1501) | Won 2-0 | +181515 |
| 8standard | 222 | Lim, Edwin Voon Fei (1739) | Lost 0-2 | -141501 |
| 9standard | 256 | Singian, Joseph Martin (1496) | Won 2-0 | +181519 |
| average opponent: 1488record: 5-4 | new rating: 1519 | |||