Day, Collin
Current rating: 1469
Record: 3-5
| Grand Prix Liverpool 2015 (FRF limited) | starting rating: 1520 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 182 | Dygnas, Jonathan (1514) | Lost 1-2 | -181502 |
| 2sealed | 507 | de Freitas Perinazzo, Guilherme (1482) | Lost 0-2 | -191483 |
| 3sealed | 845 | Bardini, Laurent (1671) | Lost 0-2 | -141469 |
| average opponent: 1556record: 0-3 | new rating: 1469 | |||
| Grand Prix London 2013 (GTC limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 149 | Exford, Matthew (1500) | Won 2-0 | +181518 |
| 2sealed | 85 | O'Brien, Lee (1518) | Won 2-0 | +181536 |
| 3sealed | 151 | Samra, Baljeet (1459) | Won 2-1 | +171553 |
| 4sealed | 81 | van Medevoort, Robert (1812) | Lost 1-2 | -141539 |
| 5sealed | 329 | Burrow, George (1460) | Lost 0-2 | -191520 |
| average opponent: 1550record: 3-2 | new rating: 1520 | |||