Robison, Billy
Current rating: 1456
Record: 5-8
| Grand Prix Atlantic City 2015 (DTK limited) | starting rating: 1489 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 451 | Taulbee, Brad (1679) | Lost 0-2 | -141475 |
| 2sealed | 603 | Ball, Randall (1482) | Won 2-1 | +181493 |
| 3sealed | 390 | Ocasio, Jon (1466) | Lost 1-2 | -191474 |
| 4sealed | 689 | Kleinman, Neal (1484) | Won 2-1 | +181492 |
| 5sealed | 511 | McCaffrey, Patrick (1477) | Lost 1-2 | -181474 |
| 6sealed | 500 | Burke, Spencer (1464) | Lost 0-2 | -181456 |
| average opponent: 1509record: 2-4 | new rating: 1456 | |||
| Grand Prix Montreal 2014 (BNG limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 215 | Mann, Tyler (1500) | Won 2-0 | +181518 |
| 2sealed | 111 | He, Daniel (1518) | Lost 1-2 | -181500 |
| 3sealed | 565 | LeBlanc, Bobby (1496) | Won 2-1 | +181518 |
| 4sealed | 298 | Siow, Lucas (1817) | Lost 0-2 | -131505 |
| 5sealed | 404 | Boyd, Sam (1501) | Won 2-0 | +181523 |
| 6sealed | 305 | West, Alan (1520) | Lost 1-2 | -181505 |
| 7sealed | 176 | Dreher, Gregory (1623) | Lost 0-2 | -161489 |
| average opponent: 1568record: 3-4 | new rating: 1489 | |||