McGrath, Joseph
Current rating: 1481
Record: 2-3
| Grand Prix Prague 2018 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 488 | Buehlbecker, Lukas (1500) | Lost 0-2 | -181482 |
| 2modern | 690 | Tosi, Remi (1566) | Won 2-1 | +201502 |
| 3modern | 512 | Leopold, Jan (1531) | Lost 1-2 | -181484 |
| 4modern | 776 | Moretti, Luca (1390) | Won 2-1 | +161500 |
| 5modern | 593 | Bruins, Pieter (1454) | Lost 1-2 | -191481 |
| average opponent: 1488record: 2-3 | new rating: 1481 | |||