Johnston, Ryan
Current rating: 1443
Record: 9-13-1
| Grand Prix Calgary 2019 (modern) | starting rating: 1460 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 36 | Shaw, Alex (1484) | Won 2-1 | +181478 |
| 2modern | 13 | Danielson, Chris (1518) | Lost 1-2 | -171461 |
| 3modern | 264 | Snippa, Tyral (1500) | Lost 0-2 | -181443 |
| top | average opponent: 1501record: 1-2 | new rating: 1443 | ||
| Grand Prix Las Vegas 2015 (2) (MM2 limited) | starting rating: 1477 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 263 | Wahr, Justin (1500) | Lost 0-2 | -171460 |
| top | record: 0-1 | new rating: 1460 | ||
| Grand Prix Montreal 2007 (Time Spiral block) | starting rating: 1475 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 154 | Murray, Pascal (1500) | Won 2-0 | +181493 |
| 2block | 118 | Artzy, Noa (1518) | Draw 1-1 | +11494 |
| 3block | 120 | Findlay-Abitbol, Nathan (1519) | Won 1-0 | +181512 |
| 4block | 103 | Bakht, Sacha (1537) | Lost 1-2 | -171495 |
| 5block | 164 | Sciascia, John (1518) | Lost 0-2 | -181477 |
| top | average opponent: 1518record: 2-2-1 | new rating: 1477 | ||
| Grand Prix Dallas 2007 (extended) | starting rating: 1466 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 58 | Patrick, Jesse (1566) | Won 2-1 | +201486 |
| 2extended | 145 | Penkauskas II, David (1620) | Won 2-1 | +201506 |
| 3extended | 108 | DeTora, Melissa (1671) | Lost 0-0 | -151491 |
| 4extended | 164 | mauldin, Micheal D (1517) | Won 2-0 | +191510 |
| 5extended | 152 | Eslami, Curtis (1537) | Lost 0-2 | -181492 |
| 6extended | 118 | Price, Pat (1520) | Lost 0-2 | -171475 |
| top | average opponent: 1572record: 3-3 | new rating: 1475 | ||
| Grand Prix Boston 2005 (extended) | starting rating: 1502 | |||
| round | table | opponent (rating) | result | Δrating |
| 2extended | 70 | Hereford, Patrick (1502) | Lost 0-2 | -181484 |
| 3extended | 156 | Simoneau, Danny R (1500) | Lost 0-2 | -181466 |
| top | average opponent: 1501record: 0-2 | new rating: 1466 | ||
| Grand Prix New Jersey 2004 (Mirrodin block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 120 | Klein, Samuel (1500) | Won 2-0 | +181518 |
| 2block | 163 | Chitty, Matthew (1520) | Won 2-0 | +181536 |
| 3block | 55 | Kastle, Darwin (1645) | Lost 0-2 | -161520 |
| 4block | 198 | Hall, Zack (1518) | Lost 0-2 | -181502 |
| 5block | 290 | Bristol, Joshua (1499) | Won 2-1 | +181520 |
| 6block | 267 | concepcion, christian (1517) | Lost 0-2 | -181502 |
| top | average opponent: 1533record: 3-3 | new rating: 1502 | ||