Mason, Billy
Current rating: 1444
Record: 3-6-1
| Grand Prix Utrecht 2015 (MM2 limited) | starting rating: 1498 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 436 | Brass, Peter (1503) | Lost 1-2 | -181480 |
| 2sealed | 448 | Timmermans, Hidde (1482) | Lost 0-2 | -181462 |
| 3sealed | 18 | Schaap, Ed (1464) | Lost 0-2 | -181444 |
| average opponent: 1483record: 0-3 | new rating: 1444 | |||
| Grand Prix Liverpool 2015 (FRF limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 232 | Watt, Richard (1479) | Draw 1-1 | 01500 |
| 2sealed | 446 | McAuley, Craig (1500) | Lost 0-2 | -181482 |
| 3sealed | 716 | Ahonen, Roni (1484) | Won 2-0 | +181500 |
| 4sealed | 546 | Wang, Yucheng (1498) | Won 2-0 | +181518 |
| 5sealed | 363 | Jones, Michael [ENG] (1434) | Lost 1-2 | -201498 |
| 6sealed | 491 | Vilain, Arnaud (1524) | Won 2-0 | +191517 |
| 7sealed | 362 | Economides, Stefanos (1472) | Lost 0-2 | -191498 |
| average opponent: 1484record: 3-3-1 | new rating: 1498 | |||