Collins, William
Current rating: 1388
Record: 1-8
| Grand Prix Sacramento 2018 (M19 limited) | starting rating: 1418 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 320 | Scotch, Dominic (1500) | Lost 0-2 | -161402 |
| 2sealed | 335 | Lindner, Jeff (1635) | Lost 0-2 | -141388 |
| top | average opponent: 1568record: 0-2 | new rating: 1388 | ||
| Grand Prix Las Vegas 2017 (modern) (modern) | starting rating: 1445 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 2156 | Benson, Stuart (1715) | Lost 0-2 | -131432 |
| 2modern | 2159 | Schramm, Brandon (1481) | Won 2-1 | +191451 |
| 3modern | 2176 | Kenrick, Nick (1640) | Lost 0-2 | -151436 |
| 4modern | 2189 | Davidson, Joe (1426) | Lost 1-2 | -181418 |
| top | average opponent: 1565record: 1-3 | new rating: 1418 | ||
| Grand Prix Las Vegas 2017 (limited) (AKH limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 2123 | Munroe, Chris (1466) | Lost 1-2 | -191481 |
| 3sealed | 2158 | Moreno, Eduardo (1476) | Lost 0-2 | -181463 |
| 4sealed | 2190 | Baker, Brandon (1461) | Lost 0-2 | -181445 |
| top | average opponent: 1468record: 0-3 | new rating: 1445 | ||