Siddall, David
Current rating: 1446
| Grand Prix Bologna 2019 (legacy) | starting rating: 1478 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 399 | Garripoli, Gian Vito (1536) | Lost 1-2 | -171461 |
| 2legacy | 593 | Minucci, Manuel (1522) | Won 2-1 | +191480 |
| 3legacy | 384 | Fiori, Alessandro (1498) | Won 2-1 | +181498 |
| 4legacy | 424 | Di Chiara, Luca 0948 (1533) | Lost 0-2 | -171481 |
| 5legacy | 432 | Ricci, Leonardo (1498) | Lost 0-2 | -181463 |
| 6legacy | 517 | Nicolella, Valeriano (1490) | Lost 1-2 | -171446 |
| top | average opponent: 1513record: 2-4 | new rating: 1446 | ||
| Grand Prix Prague 2018 (modern) | starting rating: 1496 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 433 | Dlugosz, Piotr (1482) | Lost 0-2 | -181478 |
| 2modern | 658 | Berger, Simon (1580) | Won 2-0 | +201498 |
| 3modern | 679 | Brun, Michael (1374) | Lost 1-2 | -201478 |
| 4modern | 703 | Pfister, Dominik (1483) | Lost 0-2 | -181460 |
| 5modern | 862 | Rappenglitz, Benjamin (1462) | Won 2-0 | +181478 |
| 6modern | 659 | Ermeri, Anthony (1460) | Won 2-1 | +181496 |
| 7modern | 526 | Leth, Tobias (1515) | Lost 0-2 | -181478 |
| top | average opponent: 1479record: 3-4 | new rating: 1478 | ||
| Grand Prix Birmingham 2018 (leg) (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 173 | Struzyna, Sylwester (1500) | Won 2-1 | +181518 |
| 2legacy | 261 | Caswell, Kevin (1568) | Won 2-1 | +191537 |
| 3legacy | 55 | Maas, Wouter (1364) | Won 2-1 | +151552 |
| 4legacy | 60 | Shah, Mubashar (1626) | Won 2-0 | +191571 |
| 5legacy | 9 | Ortiz Ros, Cristian (2034) | Won 2-1 | +261597 |
| 6legacy | 11 | Rayner, Andrew (1633) | Won 2-0 | +191616 |
| 7legacy | 6 | Salvador Arnal, Guillem (1878) | Lost 0-2 | -141602 |
| 8legacy | 52 | Garcia, Joseba Inaki (1729) | Lost 1-2 | -151587 |
| 9legacy | 5044 | Cadei, Angelo (1710) | Lost 0-2 | -161571 |
| 10legacy | 5091 | Dear, Stephen (1529) | Lost 1-2 | -191552 |
| 11legacy | 5097 | Bach, Simon (1512) | Lost 1-2 | -191533 |
| 12legacy | 5098 | Wickham, Charles (1540) | Lost 0-2 | -171516 |
| 13legacy | 5096 | Cadilek, Christoph (1458) | Lost 0-2 | -201496 |
| top | average opponent: 1622record: 6-7 | new rating: 1496 | ||