Johnston, Chad
Current rating: 1493
Record: 13-14-3
| Grand Prix Montreal 2018 (GRN limited) | starting rating: 1487 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 18 | Trites, Henry (1502) | Draw 1-1 | +11488 |
| 2sealed | 254 | Dore, Justin (1465) | Won 2-0 | +171505 |
| 3sealed | 247 | Le Gendre, Randy (1419) | Won 2-1 | +171522 |
| 4sealed | 128 | Howatt, Shane (1579) | Lost 0-2 | -171505 |
| 5sealed | 237 | Wallerstein, Robert (1848) | Lost 0-2 | -121493 |
| top | average opponent: 1562record: 2-2-1 | new rating: 1493 | ||
| Grand Prix Montreal 2015 (DTK limited) | starting rating: 1526 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 403 | Beaupre, Charles (1500) | Draw 1-1 | 01526 |
| 2sealed | 284 | Lachance, Jonathan (1414) | Lost 0-2 | -201506 |
| 3sealed | 481 | McCliment, Michael (1482) | Lost 1-2 | -191487 |
| top | average opponent: 1465record: 0-2-1 | new rating: 1487 | ||
| Grand Prix Ottawa 2014 (KTK limited) | starting rating: 1505 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 222 | Kralik, Thomas (1500) | Won 2-0 | +181523 |
| 2sealed | 220 | Destrempes, Marc-Andre (1486) | Won 2-0 | +181541 |
| 3sealed | 73 | Liewendahl, Christopher (1544) | Lost 0-2 | -181523 |
| 4sealed | 379 | Grayson, Shane (1554) | Lost 0-2 | -181505 |
| 5sealed | 336 | Rowe, Jonathan (1769) | Lost 1-2 | -131492 |
| 6sealed | 374 | Blackmore, George (1481) | Won 2-0 | +181510 |
| 7sealed | 300 | Chong, Ernest (1482) | Won 2-0 | +171527 |
| 8sealed | 222 | Brian, Thomas (1470) | Draw 1-1 | -11526 |
| top | average opponent: 1536record: 4-3-1 | new rating: 1526 | ||
| Grand Prix Montreal 2014 (BNG limited) | starting rating: 1525 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 396 | Robert, Marie-Eve (1464) | Won 2-1 | +171542 |
| 2sealed | 328 | Boudreau, David (1516) | Lost 1-2 | -181524 |
| 3sealed | 515 | Prado, Adrian (1501) | Lost 0-2 | -191505 |
| top | average opponent: 1494record: 1-2 | new rating: 1505 | ||
| Grand Prix Montreal 2011 (M12 limited) | starting rating: 1482 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 185 | Ferrie, Zach R (1500) | Won 2-0 | +181500 |
| 2sealed | 9 | Maguire, Doug (1518) | Won 2-0 | +181518 |
| 3sealed | 10 | Gauthier, Martin-Eric (1630) | Lost 0-2 | -161502 |
| 4sealed | 151 | Gareau, Philippe (1642) | Lost 0-2 | -151487 |
| 5sealed | 133 | Goldstein, Danny (1592) | Lost 0-2 | -161471 |
| 6sealed | 172 | Mercurio, Vadim (1482) | Won 2-1 | +181489 |
| 7sealed | 134 | Petronzio, Nicolas (1501) | Won 2-1 | +181507 |
| 8sealed | 89 | Marchi, Jonathan (1518) | Won 2-1 | +181525 |
| top | average opponent: 1548record: 5-3 | new rating: 1525 | ||
| Grand Prix Toronto 2010 (SOM limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 217 | Snazel, Nicole (1500) | Won 2-0 | +181518 |
| 2sealed | 68 | Gouthro, Michael (1499) | Lost 0-2 | -181500 |
| 3sealed | 196 | Wheelan, Beau (1500) | Lost 1-2 | -181482 |
| top | average opponent: 1500record: 1-2 | new rating: 1482 | ||