McMahon, Tony
Current rating: 1391
Record: 1-7
| Grand Prix London 2018 (RIX limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 484 | Burns, Matthew (1562) | Lost 1-2 | -171483 |
| 2sealed | 502 | Smith, Andrew8062 (1483) | Lost 0-2 | -181465 |
| 3sealed | 900 | Symon, James (1465) | Lost 1-2 | -181447 |
| 4sealed | 906 | Comte, Valentin (1362) | Lost 1-2 | -191428 |
| 5sealed | 854 | Johns, Darryl (1504) | Won 2-0 | +191447 |
| 6sealed | 743 | Wesseling, Ties (1418) | Lost 0-2 | -191428 |
| 7sealed | 644 | Hughes, Chris (1426) | Lost 0-2 | -181410 |
| 8sealed | 547 | Head, Kevin (1352) | Lost 0-2 | -191391 |
| average opponent: 1447record: 1-7 | new rating: 1391 | |||