Roy, Billy-Sam
Current rating: 1522
Record: 8-7
| Grand Prix Quebec City 2015 (BFZ standard) | starting rating: 1562 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 161 | Meunier, Joel (1519) | Won 2-1 | +171579 |
| 2standard | 59 | Normand, Jean-Francois (1671) | Lost 0-2 | -171562 |
| 3standard | 250 | Lemyre, Jean-Luc (1501) | Lost 1-2 | -191543 |
| 4standard | 294 | Leblanc Falardeau, Cedric (1482) | Lost 1-2 | -191524 |
| 5standard | 331 | Vigneux-Blais, Francis (1422) | Won 2-0 | +161540 |
| 6standard | 269 | Potvin, Gabriel (1526) | Lost 0-2 | -181522 |
| average opponent: 1520record: 2-4 | new rating: 1522 | |||
| Grand Prix Quebec City 2013 (GTC standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 105 | Leduc, Sacha (1500) | Won 2-0 | +181518 |
| 2standard | 51 | Renaud, Domynique (1485) | Won 2-1 | +171535 |
| 3standard | 132 | Samms, Phil (1820) | Lost 0-2 | -131522 |
| 4standard | 200 | Bilz, Dean (1781) | Lost 1-2 | -131509 |
| 5standard | 225 | Sevigny, Alexandre (1505) | Won 2-1 | +181527 |
| 6standard | 229 | Blondon, William (1531) | Lost 1-2 | -181509 |
| 7standard | 212 | Tailleur, Luc (1498) | Won 2-1 | +181527 |
| 8standard | 193 | Pomfret, Tom (1519) | Won 2-0 | +181545 |
| 9standard | 109 | Hawron, Richard (1482) | Won 2-1 | +171562 |
| average opponent: 1569record: 6-3 | new rating: 1562 | |||