Mahon, Scott
Current rating: 1462
| Grand Prix Montreal 2018 (GRN limited) | starting rating: 1502 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 161 | Andreff, Jimmy (1405) | Lost 1-2 | -201482 |
| 2sealed | 347 | Dionne, Samuel (1390) | Won 2-1 | +171499 |
| 3sealed | 407 | Boivin, Francois (1509) | Lost 1-2 | -181481 |
| 4sealed | 370 | Booker, David (1419) | Lost 1-2 | -191462 |
| top | average opponent: 1431record: 1-3 | new rating: 1462 | ||
| Grand Prix Montreal 2015 (DTK limited) | starting rating: 1463 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 4 | Sher, Mason (1464) | Won 2-1 | +181481 |
| 2sealed | 238 | Torres, Kyle (1557) | Won 2-1 | +201501 |
| 3sealed | 225 | Donst, Aaron (1596) | Lost 1-2 | -171484 |
| 4sealed | 323 | Bastos, Russell (1278) | Won 2-1 | +151499 |
| 5sealed | 170 | Lyons-McAlpin, John-Fr (1538) | Lost 0-2 | -181481 |
| 6sealed | 249 | Wong-Tremblay, Charles (1494) | Won 2-0 | +181499 |
| 7sealed | 221 | Bocking, David (1546) | Won 2-1 | +191518 |
| 8sealed | 92 | Cragnoline, Peter (1620) | Lost 0-2 | -161502 |
| top | average opponent: 1512record: 5-3 | new rating: 1502 | ||
| Grand Prix Ottawa 2014 (KTK limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 153 | Burgess, Justin (1500) | Won 2-0 | +181518 |
| 2sealed | 205 | Vukaj, Elisander (1500) | Lost 0-2 | -181500 |
| 3sealed | 382 | Lee, Sungho (1484) | Lost 1-2 | -191481 |
| 4sealed | 463 | Sherren, Kevin (1465) | Lost 0-2 | -181463 |
| top | average opponent: 1487record: 1-3 | new rating: 1463 | ||