Duller, Mar John
Current rating: 1481
Record: 4-5
| Grand Prix Manila 2015 (KTK standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 208 | Roman, Mitchell (1500) | Won 2-0 | +181518 |
| 2standard | 80 | Villa, Francis Christopher Duane (1465) | Lost 1-2 | -191499 |
| 3standard | 479 | Asehan, Ceasar John (1574) | Won 2-1 | +191518 |
| 4standard | 284 | Schnell, Jan Andrew (1521) | Won 2-0 | +181536 |
| 5standard | 116 | Tan, Jimmy G (1552) | Lost 0-2 | -171519 |
| 6standard | 302 | Pereda, James Arthur (1518) | Lost 0-2 | -181501 |
| 7standard | 299 | Soh, Yun Huei (1404) | Lost 0-2 | -201481 |
| 8standard | 393 | Abdul Rahim, Adnan Faiz (1499) | Lost 1-2 | -181463 |
| 9standard | 368 | Wong, Louise Tse Yan T (1462) | Won 2-1 | +181481 |
| average opponent: 1500record: 4-5 | new rating: 1481 | |||