Birkin, Carl
Current rating: 1465
Record: 5-8
| Grand Prix Birmingham 2017 (modern) | starting rating: 1513 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 336 | Wise, James (1582) | Won 2-1 | +191532 |
| 4modern | 163 | Heal, John (1513) | Lost 1-2 | -181514 |
| 5modern | 370 | Petrovic, Rene (1750) | Lost 0-2 | -141500 |
| 6modern | 422 | Otte, Jasper (1603) | Lost 1-2 | -161484 |
| 7modern | 563 | Purvis, Marc (1438) | Lost 0-2 | -191465 |
| average opponent: 1577record: 1-4 | new rating: 1465 | |||
| Grand Prix London 2016 (KLD limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 142 | Hardy, Nathan (1512) | Won 2-1 | +181518 |
| 2sealed | 383 | Spring, Lauren (1518) | Won 2-0 | +181536 |
| 3sealed | 181 | Orchard, Sam (1779) | Lost 1-2 | -131523 |
| 4sealed | 346 | Dale, Joseph (1543) | Lost 1-2 | -181505 |
| 5sealed | 789 | Bartlett, Nick (1595) | Won 2-0 | +201525 |
| 6sealed | 418 | Arabi-Eter, Samir (1588) | Lost 0-2 | -171508 |
| 7sealed | 635 | Newman, Sebastian (1519) | Won 2-1 | +181526 |
| 8sealed | 534 | Vieren, Peter (1819) | Lost 0-2 | -131513 |
| average opponent: 1609record: 4-4 | new rating: 1513 | |||