Mason, Jonathan
Current rating: 1449
Record: 1-4
| Grand Prix London 2016 (KLD limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 399 | Ring, Levi (1615) | Lost 1-2 | -161484 |
| 2sealed | 955 | Boyle, Siobhan (1482) | Won 2-1 | +181502 |
| 3sealed | 632 | Knowlson, George (1499) | Lost 1-2 | -181484 |
| 4sealed | 969 | Simm, Reece (1601) | Lost 1-2 | -161468 |
| 5sealed | 985 | Simmonds, Jay (1425) | Lost 0-2 | -191449 |
| average opponent: 1524record: 1-4 | new rating: 1449 | |||