Markowski, Derrick
Current rating: 1426
Record: 2-6
| Grand Prix Toronto 2013 (THS limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 207 | Moore, Jordyn (1500) | Lost 1-2 | -181482 |
| 2sealed | 439 | Weber, Ethan (1482) | Won 2-0 | +181500 |
| 3sealed | 490 | Mackenzie, Ronald (1483) | Lost 0-2 | -181482 |
| 4sealed | 539 | Sanna, Will (1481) | Won 2-1 | +181500 |
| 5sealed | 352 | Schofield, Graham (1592) | Lost 0-2 | -171483 |
| 6sealed | 46 | Courtemanche, Matt (1397) | Lost 0-2 | -191464 |
| 7sealed | 414 | Charron Vazquez, Julien (1387) | Lost 0-2 | -201444 |
| 8sealed | 320 | Gagnon, Frederic (1409) | Lost 0-2 | -181426 |
| average opponent: 1467record: 2-6 | new rating: 1426 | |||