Seah Kai Jun, Jonathan
Current rating: 1506
Record: 5-5-1
| Grand Prix Hong Kong 2018 (modern) | starting rating: 1541 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 120 | Sales, Joseph Benjamin (1500) | Draw 1-1 | 01541 |
| 2modern | 199 | Tilley, Samuel (1649) | Lost 1-2 | -161525 |
| 3modern | 364 | Li, Claud (1484) | Lost 1-2 | -191506 |
| average opponent: 1544record: 0-2-1 | new rating: 1506 | |||
| Grand Prix Singapore 2015 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 37 | Jun Ming, Tan (1500) | Won 2-0 | +181518 |
| 2modern | 90 | Guo, Wei (1488) | Won 2-1 | +171535 |
| 3modern | 22 | Pangilinan, Paul Michael (1655) | Lost 0-2 | -151520 |
| 4modern | 232 | Xiao, Han (1518) | Won 2-1 | +181538 |
| 5modern | 94 | Lu, Bo (1636) | Won 2-1 | +191557 |
| 6modern | 60 | Yesertener, Burak (1572) | Won 2-1 | +191576 |
| 7modern | 59 | Patriawan, Kurniadi (1698) | Lost 1-2 | -161560 |
| 8modern | 150 | LIM MIN CHAO, ELROY (1528) | Lost 1-2 | -191541 |
| average opponent: 1574record: 5-3 | new rating: 1541 | |||