Collison, Jack
Current rating: 1498
Record: 9-10
| Grand Prix Washington DC 2019 (MH1 limited) | starting rating: 1489 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 184 | Sims, Ruben (1371) | Won 2-0 | +161505 |
| 2sealed | 101 | Vargas, Manuel (1543) | Won 0-0 | +191524 |
| 3sealed | 235 | AuCoin, Ryan (1747) | Won 2-1 | +221546 |
| 4sealed | 126 | Brodie, Daniel (1596) | Lost 0-2 | -181528 |
| 5sealed | 244 | Skapetis, Tristin (1687) | Lost 0-2 | -151513 |
| 6sealed | 237 | Swan, Brad (1668) | Lost 0-2 | -151498 |
| top | average opponent: 1602record: 3-3 | new rating: 1498 | ||
| Grand Prix Las Vegas 2018 (limited) (DOM limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 378 | Guan, Glen (1464) | Lost 0-2 | -191481 |
| 2sealed | 596 | Hsiung, Kenny (1837) | Won 2-0 | +241505 |
| 3sealed | 666 | Martinez, Matthew (1340) | Won 2-0 | +151520 |
| 4sealed | 566 | Han, Chin Yao (1805) | Lost 1-2 | -131507 |
| 5sealed | 427 | Saenz, Matthew (1484) | Lost 0-2 | -181489 |
| top | average opponent: 1586record: 2-3 | new rating: 1489 | ||
| Grand Prix Phoenix 2017 (XLN limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 95 | Castro, David (1463) | Lost 1-2 | -191481 |
| 2sealed | 276 | Worman, Christopher (1525) | Won 2-0 | +191500 |
| 3sealed | 358 | Lore, Nick (1630) | Lost 0-2 | -161484 |
| 4sealed | 20 | Cade, Quan (1441) | Lost 0-2 | -181466 |
| 5sealed | 465 | Wonnick, Tyler (1459) | Won 2-1 | +181484 |
| 6sealed | 418 | Pardee, Carolyn (1466) | Won 2-1 | +171501 |
| 7sealed | 300 | Bridges, Kayla (1417) | Won 2-1 | +171518 |
| 8sealed | 216 | Freydkis, Josh (1521) | Lost 1-2 | -181500 |
| top | average opponent: 1490record: 4-4 | new rating: 1500 | ||