Cupples, Lester
Current rating: 1494
| Grand Prix Birmingham 2019 (modern) | starting rating: 1480 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 225 | Shanahan, Thomas (1500) | Won 2-1 | +181498 |
| 2modern | 213 | Brownson-Smith, Callum (1672) | Lost 1-2 | -151483 |
| 3modern | 225 | Willeke, Vitus (1541) | Won 2-1 | +191502 |
| 4modern | 117 | Masoliver, Yashin (1508) | Won 2-0 | +191521 |
| 5modern | 141 | Huschenbeth, Arne (2097) | Lost 1-2 | -91512 |
| 6modern | 177 | Velten, Lennart (1532) | Lost 0-2 | -181494 |
| top | average opponent: 1642record: 3-3 | new rating: 1494 | ||
| Grand Prix London 2018 (RIX limited) | starting rating: 1518 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 153 | Head, Kevin (1463) | Won 2-0 | +171535 |
| 2sealed | 21 | Fernandes, Andrew (1554) | Lost 0-2 | -171518 |
| 3sealed | 607 | O'Brien, Conor (1500) | Lost 1-2 | -191499 |
| 4sealed | 698 | Cvoro, Aleksa (1422) | Lost 1-2 | -191480 |
| top | average opponent: 1485record: 1-3 | new rating: 1480 | ||
| Grand Prix Liverpool 2017 (XLN limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 110 | Bond, Kevin (1547) | Lost 0-2 | -171483 |
| 2sealed | 314 | Harre, Martin (1572) | Won 2-1 | +191502 |
| 3sealed | 401 | Nikitakis, Noli (1394) | Won 2-0 | +171519 |
| 4sealed | 375 | Larsson, Jonatan (1636) | Won 2-0 | +201539 |
| 5sealed | 213 | Helfer, Felix (1525) | Lost 1-2 | -191520 |
| 6sealed | 281 | Kent, Declan (1462) | Lost 0-2 | -191501 |
| 7sealed | 335 | McAllister, Orson (1424) | Won 2-1 | +171518 |
| 8sealed | 196 | Novo, Didier (1480) | Won 2-0 | +171535 |
| 9sealed | 157 | Chapman, Kyle (1591) | Lost 0-2 | -171518 |
| top | average opponent: 1515record: 5-4 | new rating: 1518 | ||