Marlborough, Sean
Current rating: 1465
Record: 1-3
| Grand Prix London 2018 (RIX limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 539 | Sasiain, Gaizka (1500) | Lost 0-2 | -181482 |
| 2sealed | 580 | Badz, Daniel (1483) | Won 2-1 | +181500 |
| 3sealed | 637 | Saudino, Amedee (1556) | Lost 1-2 | -171483 |
| 4sealed | 790 | Harmer, Matt (1472) | Lost 0-2 | -181465 |
| average opponent: 1503record: 1-3 | new rating: 1465 | |||