Tengco, Giovanni Macas
Current rating: 1487
Record: 7-8
| Grand Prix Manila 2010 (ROE standard) | starting rating: 1465 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 414 | Gamboa, Al John (1500) | Won 2-0 | +181483 |
| 2standard | 176 | Limchoc, Nico (1518) | Won 2-0 | +191502 |
| 3standard | 110 | Dealca, Hezekiah G (1536) | Won 2-0 | +181520 |
| 4standard | 39 | Praipitakkul, Teerapong (1518) | Lost 1-2 | -181502 |
| 5standard | 95 | Badlon, Richard (1594) | Lost 1-2 | -161486 |
| 6standard | 166 | Lavadia, Alvin Christopher (1518) | Won 2-1 | +191505 |
| 7standard | 152 | Rama, Oliver (1536) | Lost 1-2 | -181487 |
| average opponent: 1531record: 4-3 | new rating: 1487 | |||
| Grand Prix Manila 2008 (Lorwyn block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 164 | Semana, Randy (1552) | Lost 0-2 | -171483 |
| 2block | 266 | Tracena, Francisco Uy (1482) | Won 2-0 | +181501 |
| 3block | 215 | Pangasinan, Jay (1482) | Lost 0-2 | -181483 |
| 4block | 244 | Galarpe, Mark Jason G (1482) | Won 2-0 | +181501 |
| 5block | 166 | Candaroma, Rudolph Joh (1500) | Lost 1-2 | -181483 |
| 6block | 209 | Baligaya, Raymond (1482) | Won 2-0 | +181501 |
| 7block | 165 | Bactad, Christian Andr (1501) | Lost 1-2 | -181483 |
| 8block | 182 | Puno, Owen Ross (1481) | Lost 1-2 | -181465 |
| average opponent: 1495record: 3-5 | new rating: 1465 | |||