Tjen, Geoffrey
Current rating: 1520
Record: 5-4
| Grand Prix Toronto 2013 (THS limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 460 | Elder, Dylan (1504) | Won 2-1 | +181518 |
| 2sealed | 414 | Lansche, Derek (1576) | Lost 0-2 | -171501 |
| 3sealed | 473 | Tremblay, Eric (1500) | Won 2-0 | +181519 |
| 4sealed | 256 | Emms, Brandon (1510) | Won 2-1 | +181537 |
| 5sealed | 271 | Jackson, Greg [CAN] (1561) | Lost 0-2 | -181519 |
| 6sealed | 311 | Peddle, Ken (1521) | Won 2-1 | +181537 |
| 7sealed | 170 | Dennill, Josh (1543) | Won 2-0 | +191556 |
| 8sealed | 185 | Ando, Michael (1536) | Lost 1-2 | -191537 |
| 9sealed | 192 | Robert, Mathieu (1576) | Lost 0-2 | -171520 |
| average opponent: 1536record: 5-4 | new rating: 1520 | |||