Mason, Lee
Current rating: 1461
Record: 3-5
| Grand Prix Birmingham 2019 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 13 | Pike, Ben (1500) | Lost 1-2 | -181482 |
| 2modern | 244 | Ball, James 9589 (1482) | Won 2-1 | +181500 |
| 3modern | 351 | Meagher, Tom (1499) | Lost 1-2 | -181482 |
| 4modern | 395 | Vogel, Alexander (1465) | Lost 1-2 | -181464 |
| 5modern | 354 | Marocco, Federica (1447) | Won 2-0 | +171481 |
| 6modern | 286 | Wouters, Michael (1388) | Lost 0-2 | -191462 |
| 7modern | 265 | Liu, Chi Hung (1450) | Lost 1-2 | -191443 |
| 8modern | 246 | Binks, Dominic (1445) | Won 2-1 | +181461 |
| average opponent: 1460record: 3-5 | new rating: 1461 | |||