Manuel, Justin
Current rating: 1524
| Grand Prix Manila 2010 (ROE standard) | starting rating: 1483 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 108 | Daracan, Jeffrey Allen (1518) | Won 2-0 | +191502 |
| 3standard | 16 | Calucag, Richard (1536) | Won 2-1 | +191521 |
| 4standard | 80 | San Juan, Jason (1536) | Lost 0-2 | -181503 |
| 5standard | 200 | Sy, Wilheim (1535) | Lost 1-2 | -181485 |
| 6standard | 259 | Gayomali, Luji Ryan (1517) | Won 2-0 | +191504 |
| 7standard | 184 | Singayao, Kasraj (1536) | Lost 0-2 | -171487 |
| 8standard | 181 | So, Paul Richard (1517) | Won 2-1 | +181505 |
| 9standard | 120 | Dagondon, Niel (1539) | Won 2-1 | +191524 |
| top | average opponent: 1529record: 5-3 | new rating: 1524 | ||
| Grand Prix Manila 2008 (Lorwyn block) | starting rating: 1480 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 234 | Umil, Mark (1500) | Lost 1-2 | -171463 |
| 2block | 169 | Macapagal, Molave Neme (1482) | Won 2-0 | +181481 |
| 3block | 196 | Viguilla, Victor (1517) | Won 2-0 | +191500 |
| 4block | 139 | Gonzales, Joseph Ryan (1517) | Lost 1-2 | -181482 |
| 5block | 225 | Quidayan, John Neil (1499) | Lost 1-2 | -181464 |
| 6block | 225 | Trinidad, Ronald B (1482) | Won 2-1 | +191483 |
| 7block | 140 | Wong, Laurence (1498) | Lost 1-2 | -181465 |
| 8block | 171 | Galiste, Bryan Erd (1482) | Won 2-0 | +181483 |
| top | average opponent: 1497record: 4-4 | new rating: 1483 | ||
| Grand Prix Manila 2006 (GPT limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 131 | Adelfin, Richard (1392) | Lost 0-2 | -201480 |
| 2sealed | 151 | Malanao, Dindo (1482) | Lost 1-2 | -181462 |
| 3sealed | 137 | Vargas, Noel (1464) | Won 2-0 | +181480 |
| 4sealed | 142 | Choi, Joseph Davidsen (1482) | Won 2-1 | +181498 |
| 5sealed | 115 | Inocencion, John Kelvi (1500) | Won 2-0 | +181516 |
| 6sealed | 60 | Profeta, Francis Robert (1524) | Lost 1-2 | -181498 |
| 7sealed | 88 | Gonzales, Kevin (1500) | Lost 1-2 | -181480 |
| top | average opponent: 1478record: 3-4 | new rating: 1480 | ||