Knowlson, George
Current rating: 1555
| Grand Prix Birmingham 2019 (modern) | starting rating: 1520 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 39 | Nadelmann, Daniel (1562) | Lost 0-2 | -181502 |
| 2modern | 254 | Martin, Alistair (1607) | Lost 0-1 | -161486 |
| 3modern | 411 | Tindall, Freddie (1461) | Won 2-0 | +181504 |
| 4modern | 387 | Wilmore, James (1478) | Won 2-0 | +171521 |
| 5modern | 264 | Fernandez, Francisco (1474) | Won 2-0 | +171538 |
| 6modern | 217 | Phelps, Jason (1527) | Lost 0-2 | -181520 |
| 7modern | 226 | Banks-Hawley, Rohan (1489) | Won 2-1 | +181538 |
| 8modern | 166 | Dodd, Carl (1514) | Won 2-0 | +171555 |
| top | average opponent: 1514record: 5-3 | new rating: 1555 | ||
| Grand Prix Birmingham 2017 (modern) | starting rating: 1503 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 505 | Czerwik, James (1500) | Lost 1-2 | -181485 |
| 2modern | 484 | Schmid, Pascal (1468) | Lost 0-0 | -181467 |
| 3modern | 810 | Paetsch, Erich (1463) | Won 2-0 | +181485 |
| 4modern | 637 | Chacksfield, Elliott (1492) | Won 2-1 | +181503 |
| 5modern | 412 | Lythe, Richard (1438) | Won 2-0 | +171520 |
| 6modern | 317 | Fry, Sam (1554) | Won 2-0 | +191539 |
| 7modern | 264 | McDonnell, Finn (1479) | Lost 1-2 | -201519 |
| 8modern | 426 | Deleval, Abbie (1498) | Won 2-0 | +181537 |
| 9modern | 262 | Gameiro, Kevin-Romain (1559) | Lost 1-2 | -171520 |
| top | average opponent: 1495record: 5-4 | new rating: 1520 | ||
| Grand Prix London 2016 (KLD limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 75 | Saura Sainz, Ramon (1421) | Lost 1-2 | -191481 |
| 2sealed | 981 | Cvetkovic, Darko (1482) | Won 2-0 | +181499 |
| 3sealed | 632 | Mason, Jonathan (1502) | Won 2-1 | +181517 |
| 4sealed | 761 | De Smet, Anton (1395) | Lost 1-2 | -211496 |
| 5sealed | 781 | Lemoine, Vincent (1826) | Lost 0-2 | -121484 |
| 6sealed | 855 | Perez Abreu, Gerardo (1467) | Won 2-0 | +181502 |
| 7sealed | 800 | Ratvik, Helge (1587) | Lost 1-2 | -171485 |
| 8sealed | 710 | Moir, Chris (1485) | Won 2-1 | +181503 |
| top | average opponent: 1521record: 4-4 | new rating: 1503 | ||