David, Valentinus
Current rating: 1561
Record: 6-3
| Grand Prix Singapore 2013 (RTR limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 309 | Bay, Zhiyang Dexter (1486) | Won 2-0 | +181518 |
| 2sealed | 9 | Mohd Nasir, Mohd Ikmal (1658) | Won 2-0 | +201538 |
| 3sealed | 89 | Lim, Jimmy Chun Long (1611) | Won 2-1 | +201558 |
| 4sealed | 36 | Pai, Bruce (1792) | Lost 0-2 | -141544 |
| 5sealed | 125 | Nisperos, Ricardo (1511) | Won 2-1 | +171561 |
| 6sealed | 78 | Ching, Ming Kai (1539) | Lost 1-2 | -181543 |
| 7sealed | 134 | Tanumihardja, Maximillian (1536) | Lost 1-2 | -181525 |
| 8sealed | 168 | Ng Dun Yu, Robin (1548) | Won 2-0 | +181543 |
| 9sealed | 130 | Chin, Wei Han (1546) | Won 2-0 | +181561 |
| average opponent: 1581record: 6-3 | new rating: 1561 | |||