Johnston, Cody
Current rating: 1591
Record: 15-12
| Grand Prix Las Vegas 2017 (legacy) (legacy) | starting rating: 1613 | |||
| round | table | opponent (rating) | result | Δrating |
| 3legacy | 580 | Kotscharjan, Greg (1474) | Won 2-0 | +151628 |
| 4legacy | 240 | Fior, Daniel (1932) | Lost 0-2 | -121616 |
| 5legacy | 500 | Menzies, Emil (1631) | Won 2-0 | +181634 |
| 6legacy | 279 | Fiffles, Adam (1698) | Lost 0-2 | -171617 |
| 7legacy | 395 | Jaeger, Tony (1336) | Lost 0-2 | -231594 |
| 8legacy | 447 | Pope, Matthew (1819) | Lost 1-2 | -141580 |
| 9legacy | 580 | Lhomme, Steeve (1167) | Won 2-0 | +111591 |
| top | average opponent: 1579record: 3-4 | new rating: 1591 | ||
| Grand Prix Seattle-Tacoma 2015 (legacy) | starting rating: 1529 | |||
| round | table | opponent (rating) | result | Δrating |
| 3legacy | 63 | Garner, Robert (1495) | Won 2-0 | +171546 |
| 4legacy | 20 | Woolley, Tyler (1639) | Won 2-1 | +201566 |
| 5legacy | 27 | Ku, David (1543) | Won 2-1 | +171583 |
| 6legacy | 46 | Fang, Percy (1748) | Lost 1-2 | -151568 |
| 7legacy | 37 | Mullan, Paul (1571) | Won 2-1 | +181586 |
| 8legacy | 21 | Brown, Eric (1885) | Lost 0-2 | -121574 |
| 9legacy | 77 | Hinkle, Charles (1863) | Won 2-1 | +231597 |
| 10legacy | 103 | Aylward, Robert (1526) | Won 2-0 | +161613 |
| 11legacy | 22 | Duke, Reid (2121) | Lost 1-2 | -91604 |
| 12legacy | 72 | Laufer, Baxter (1545) | Won 0-0 | +171621 |
| 13legacy | 49 | Sittner, Alex (1950) | Lost 0-0 | -121609 |
| 14legacy | 70 | Lavery, Kevin (1603) | Won 2-0 | +181627 |
| 15legacy | 39 | VanMeter, Chris (1869) | Lost 0-2 | -141613 |
| top | average opponent: 1720record: 8-5 | new rating: 1613 | ||
| Grand Prix New Jersey 2014 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 3legacy | 1411 | Arrington, Robert (1534) | Won 2-1 | +191519 |
| 4legacy | 1427 | Vidugiris, Gaudenis (1985) | Won 2-0 | +261545 |
| 5legacy | 1468 | Olson, Tracy (1572) | Won 2-1 | +181563 |
| 6legacy | 1431 | Stanton, Mark (1667) | Lost 1-2 | -161547 |
| 7legacy | 1468 | Ren, Diana (1597) | Lost 0-2 | -171530 |
| 8legacy | 1486 | Fontaine, David (1514) | Won 2-1 | +181548 |
| 9legacy | 1446 | Logan, Brock (1494) | Lost 1-2 | -191529 |
| top | average opponent: 1623record: 4-3 | new rating: 1529 | ||