Grageda, John Rocel
Current rating: 1323
| Grand Prix Manila 2012 (AVR standard) | starting rating: 1380 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 362 | Pablo, Mark Anthony (1464) | Lost 0-2 | -161364 |
| 2standard | 452 | Millan, James Jonathan (1369) | Won 2-1 | +181382 |
| 3standard | 273 | Co, Mark Anthony (1532) | Lost 0-2 | -151367 |
| 4standard | 488 | Ramos, Ronald (1480) | Lost 0-2 | -161351 |
| 5standard | 445 | Nilo, Rico (1484) | Lost 0-2 | -161335 |
| 6standard | 478 | Agupitan, Christ D (1448) | Lost 0-2 | -161319 |
| 7standard | 441 | Icaranom, Joseph (1428) | Won 2-1 | +201339 |
| 8standard | 377 | Roque, Jether M (1445) | Lost 0-2 | -161323 |
| top | average opponent: 1456record: 2-6 | new rating: 1323 | ||
| Grand Prix Manila 2010 (ROE standard) | starting rating: 1409 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 335 | Estacio, Frederick (1500) | Lost 1-2 | -171392 |
| 2standard | 344 | Soliman, Arigo Adrian (1516) | Won 2-1 | +211413 |
| 3standard | 258 | Enriquez, Abby (1500) | Lost 1-2 | -171396 |
| 4standard | 368 | Manuel, Frederick (1518) | Lost 0-2 | -161380 |
| top | average opponent: 1508record: 1-3 | new rating: 1380 | ||
| Grand Prix Manila 2008 (Lorwyn block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 22 | Ebon, Edwin (1482) | Lost 0-2 | -181482 |
| 2block | 273 | Cortez, Alsey (1482) | Lost 0-2 | -181464 |
| 3block | 274 | Mallari, John Paul O (1463) | Lost 0-2 | -181446 |
| 4block | 300 | Sy, Benigno Francisco (1446) | Won 2-1 | +181464 |
| 5block | 277 | Ilagan, Jericho (1447) | Lost 0-2 | -191445 |
| 6block | 275 | Bacallan, Jan Christia (1445) | Lost 0-2 | -181427 |
| 7block | 260 | Millan, James Jonathan (1392) | Lost 0-2 | -181409 |
| top | average opponent: 1451record: 1-6 | new rating: 1409 | ||