Ahern, Roger
Current rating: 1533
Record: 5-3
| Grand Prix Calgary 2013 (M14 standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 128 | Kelly, Hayden (1500) | Won 0-0 | +181518 |
| 2standard | 228 | Prince, Chelsy (1480) | Won 2-0 | +171535 |
| 3standard | 117 | Horton, Shane (1466) | Won 2-1 | +171552 |
| 4standard | 111 | Sliva, Jon (1554) | Lost 0-2 | -181534 |
| 5standard | 154 | Popov, Sergei (1501) | Won 2-0 | +171551 |
| 6standard | 83 | Skippen, Will (1547) | Lost 0-2 | -181533 |
| 7standard | 142 | Wagner, Richard (1530) | Won 2-1 | +181551 |
| 8standard | 115 | Zanetic, Ted (1512) | Lost 0-2 | -181533 |
| average opponent: 1511record: 5-3 | new rating: 1533 | |||