Clayton, Andrew P.
Current rating: 1504
Record: 1-4 (GP) / 9-9 (professional)
| 2006 World Championship (mixed) | starting rating: 1449 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 7 | Oberbek, Przemyslaw (1665) | Lost 1-2 | -141435 |
| 2standard | 145 | Gontaev, Eugene (1487) | Lost 0-2 | -171418 |
| 3standard | 152 | Tsavousis, Luke (1505) | Lost 1-2 | -161402 |
| 4standard | 166 | Golev, Kostadin A. (1459) | Won 2-1 | +191421 |
| 5standard | 136 | Williams, Roy (1491) | Won 2-1 | +191440 |
| 6standard | 105 | Tan, Alvin Jia-Huei (1486) | Won 2-1 | +191459 |
| 7draft | 120 | Summersberger, Helmut (1795) | Won 2-0 | +241483 |
| 8draft | 62 | Zidek, Arnost (1741) | Won 2-1 | +221505 |
| 9draft | 52 | Katayama, Hidenori (1747) | Lost 0-2 | -131492 |
| 10draft | 36 | Wiegersma, Jelger (2107) | Lost 0-2 | -81484 |
| 11draft | 165 | Bonilla, Luis (1628) | Lost 0-2 | -161468 |
| 12draft | 118 | Gontaev, Eugene (1506) | Won 2-1 | +191487 |
| 13extended | 90 | Jonsson, Anton (1818) | Won 2-0 | +241511 |
| 14extended | 82 | Nerhus, Steinar (1549) | Lost 0-2 | -171494 |
| 15extended | 91 | Malin, Antti (1810) | Won 2-0 | +231517 |
| 16extended | 78 | Akbulut, Berk (1571) | Won 2-1 | +191536 |
| 17extended | 64 | Andreasen, Dennis (1649) | Lost 0-2 | -161520 |
| 18extended | 68 | Huba, Michal (1596) | Lost 0-2 | -161504 |
| top | average opponent: 1645record: 9-9 | new rating: 1504 | ||
| Grand Prix Birmingham 2004 (DST limited) | starting rating: 1464 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 16 | Yates, Steve (1500) | Won 2-0 | +191483 |
| 2sealed | 102 | Bruwer, Martin (1505) | Lost 0-2 | -181465 |
| 3sealed | 191 | Verno, Gianluca (1571) | Lost 1-2 | -161449 |
| top | average opponent: 1526record: 1-2 | new rating: 1449 | ||
| Grand Prix London 2001 (Invasion block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 150 | Roos, Maarten (1518) | Lost 0-2 | -181482 |
| 2block | 205 | Darras, Alexandre (1483) | Lost 1-2 | -181464 |
| top | average opponent: 1501record: 0-2 | new rating: 1464 | ||