Chapman, David
Current rating: 1556
Record: 13-11-1 (GP) / 8-10 (professional)
| Grand Prix London 2016 (KLD limited) | starting rating: 1603 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 221 | Snowden, Huw (1500) | Won 2-0 | +161619 |
| 2sealed | 485 | Monsieurs, Patrick (1610) | Lost 1-2 | -181601 |
| 3sealed | 726 | Chetwood, Jack (1465) | Won 2-1 | +151616 |
| 4sealed | 621 | McGovern, Mark (1587) | Lost 1-2 | -181598 |
| 5sealed | 591 | Siritanaratkul, Bhavin (1414) | Won 2-0 | +141612 |
| 6sealed | 401 | Costagli, Matteo (1590) | Lost 0-2 | -181594 |
| 7sealed | 750 | Paananen, Juha (1569) | Lost 0-2 | -191575 |
| 8sealed | 676 | Perl, Jakob (1476) | Lost 0-2 | -191556 |
| top | average opponent: 1526record: 3-5 | new rating: 1556 | ||
| Grand Prix Manchester 2012 (DKA limited) | starting rating: 1478 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 436 | Griffiths, Kristian (1500) | Won 2-0 | +191497 |
| 2sealed | 467 | Chong, Caleb W (1518) | Won 2-0 | +181515 |
| 3sealed | 482 | Sarioglu, Sami (1313) | Won 2-0 | +141529 |
| 4sealed | 473 | Battiscombe, Peter (1431) | Won 2-1 | +171546 |
| 5sealed | 420 | Dawson, Guy (1525) | Won 2-1 | +171563 |
| 6sealed | 419 | Schwarze, Marius (1721) | Won 2-1 | +211584 |
| 7sealed | 408 | Hofmann, Mike (1716) | Won 2-0 | +201604 |
| 8sealed | 404 | Bastos, Frederico (1748) | Won 2-1 | +211625 |
| 9sealed | 527 | Darras, Alexandre (1689) | Lost 0-2 | -171608 |
| 10draft | 2 | Ortiz de la Torre, David (1535) | Won 2-0 | +171625 |
| 11draft | 9 | Mueller, Andre (1830) | Won 2-1 | +221647 |
| 12draft | 72 | Harle, Thomas (1744) | Lost 1-2 | -171630 |
| 13draft | 5 | Mueller, Andre (1821) | Lost 1-2 | -141616 |
| 14draft | 49 | Franek, Guillaume (1651) | Lost 0-2 | -181598 |
| 15draft | 23 | Ganz, Andreas (1829) | Draw 1-1 | +51603 |
| top | average opponent: 1638record: 10-4-1 | new rating: 1603 | ||
| 2004 World Championship (mixed) | starting rating: 1463 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 5 | Snepvangers, Bram (1749) | Lost 1-2 | -131450 |
| 2standard | 105 | Volberg, Mats (1487) | Won 2-1 | +191469 |
| 3standard | 54 | Boll, Soren (1572) | Lost 0-2 | -161453 |
| 4standard | 123 | Roux, Sebastien (1857) | Won 2-1 | +251478 |
| 5standard | 96 | Markovsky, Greg (1507) | Won 2-1 | +181496 |
| 6standard | 70 | Tanaka, Hisaya (1813) | Lost 0-2 | -121484 |
| 7draft | 1 | Gomez, Joiman (1517) | Won 2-1 | +191503 |
| 8draft | 22 | Gatt, Patrick (1530) | Won 2-0 | +181521 |
| 9draft | 62 | Ibamoto, Masami (1904) | Lost 1-2 | -111510 |
| 10draft | 64 | Saito, Tomoharu (1813) | Lost 0-2 | -131497 |
| 11draft | 122 | Tsai, Ming Da (1516) | Won 2-0 | +181515 |
| 12draft | 78 | Stanicic, Ognjen (1541) | Lost 0-2 | -171498 |
| 13block | 75 | Harding, Conor (1516) | Lost 0-2 | -181480 |
| 14block | 81 | Barbosa, Osvaldo (1514) | Won 2-0 | +191499 |
| 15block | 83 | Jonsson, Anton (1992) | Lost 0-2 | -101489 |
| 16block | 82 | Soh, Joe (1632) | Lost 0-2 | -151474 |
| 17block | 99 | Ormerod, John (1717) | Won 2-0 | +221496 |
| 18block | 85 | Romans, Gregory (1504) | Lost 0-2 | -181478 |
| top | average opponent: 1649record: 8-10 | new rating: 1478 | ||
| Grand Prix Manchester 2000 (INV limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 42 | Humphreys, Mark Brian (1457) | Lost 1-2 | -191481 |
| 2sealed | 69 | Tombe, Jack (1482) | Lost 1-2 | -181463 |
| top | average opponent: 1470record: 0-2 | new rating: 1463 | ||