Obra, Ian Joshua
Current rating: 1396
Record: 3-9
| Grand Prix Manila 2015 (KTK standard) | starting rating: 1486 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 397 | Ople, Ken (1445) | Lost 0-2 | -191467 |
| 2standard | 617 | Regala, Renzikiel (1480) | Lost 0-2 | -181449 |
| 3standard | 646 | Candelaria, Roy Philip (1466) | Lost 1-2 | -171432 |
| 4standard | 645 | Reyes, Angelo (1446) | Lost 1-2 | -181414 |
| 5standard | 647 | Datuin, Mark David (1428) | Lost 0-2 | -181396 |
| average opponent: 1453record: 0-5 | new rating: 1396 | |||
| Grand Prix Manila 2010 (ROE standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 101 | Anyaya, Allan (1500) | Won 2-0 | +181518 |
| 2standard | 61 | Deriquito, Rodolfo (1615) | Lost 0-2 | -161502 |
| 3standard | 246 | Sacramento, Michael (1500) | Won 2-1 | +181520 |
| 4standard | 214 | Banda, Mark Joseph (1500) | Won 2-1 | +171537 |
| 5standard | 93 | Bandou, Junichirou (1675) | Lost 1-2 | -151522 |
| 6standard | 244 | Singayao, Kasraj (1518) | Lost 1-2 | -181504 |
| 7standard | 253 | Belches, Michael (1505) | Lost 0-2 | -181486 |
| average opponent: 1545record: 3-4 | new rating: 1486 | |||