De Joseph, Jonathan
Current rating: 1537
Record: 9-7
| Grand Prix Manila 2010 (ROE standard) | starting rating: 1518 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 181 | Cruz, Neil (1536) | Lost 0-2 | -181500 |
| 2standard | 409 | Abrinica, Rey (1480) | Won 2-0 | +181518 |
| 3standard | 273 | Maquirang, Wilfredo Sa (1500) | Won 2-0 | +181536 |
| 4standard | 250 | Espiritu, Elenor (1518) | Won 2-0 | +171553 |
| 5standard | 85 | Magbanua, Jerome (1482) | Won 2-1 | +171570 |
| 6standard | 65 | Faytaren, Pete (1553) | Lost 1-2 | -181552 |
| 7standard | 133 | Payabyab, Mark Lynius (1569) | Won 2-1 | +181570 |
| 8standard | 66 | Tanahashi, Masayasu (1768) | Lost 1-2 | -141556 |
| 9standard | 133 | Chingtoco, Paul Eugene (1551) | Lost 0-2 | -191537 |
| average opponent: 1551record: 5-4 | new rating: 1537 | |||
| Grand Prix Manila 2006 (GPT limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 32 | Co, Royce Nasis (1500) | Won 2-1 | +181518 |
| 2sealed | 64 | Bondoc, Deric (1518) | Lost 1-2 | -181500 |
| 3sealed | 86 | Guison, Benito (1501) | Won 2-0 | +181518 |
| 4sealed | 63 | Rocha, Edgar Allan (1518) | Lost 0-2 | -181500 |
| 5sealed | 121 | Martir, Glen (1500) | Lost 0-2 | -181482 |
| 6sealed | 117 | Villahermosa, Mark Joh (1482) | Won 2-0 | +181500 |
| 7sealed | 104 | Faustino, Erickson Cor (1498) | Won 2-1 | +181518 |
| average opponent: 1502record: 4-3 | new rating: 1518 | |||