Logan, William
Current rating: 1475
Record: 11-13
| Grand Prix Brighton 2009 (M10 limited) | starting rating: 1487 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 95 | Parker, Sebastian (1500) | Lost 1-2 | -181469 |
| 3sealed | 252 | Hanzalek, Jan (1481) | Won 2-1 | +191488 |
| 4sealed | 162 | Kosciolek, Maciej (1515) | Lost 1-2 | -181470 |
| 5sealed | 279 | Carroll, Ryan R (1556) | Won 2-0 | +201490 |
| 6sealed | 201 | Heigerer, Stefan (1658) | Lost 0-2 | -151475 |
| top | average opponent: 1542record: 2-3 | new rating: 1475 | ||
| Grand Prix Birmingham 2008 (Lorwyn block) | starting rating: 1480 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 172 | Bathe-Taylor, Mark R (1483) | Won 2-1 | +181498 |
| 2block | 85 | Bresland, Noel (1478) | Lost 0-2 | -181480 |
| 3block | 107 | Keith, Rose (1500) | Won 2-0 | +181498 |
| 4block | 137 | Piovan, Jerome (1518) | Lost 0-2 | -171481 |
| 5block | 191 | Lowther, Phil (1534) | Lost 1-2 | -171464 |
| 6block | 172 | Watson, Duncan (1482) | Won 0-0 | +181482 |
| 7block | 129 | Prasjaksattru, Parn (1517) | Won 2-0 | +191501 |
| 8block | 113 | West, Alexander (1757) | Lost 1-2 | -141487 |
| top | average opponent: 1534record: 4-4 | new rating: 1487 | ||
| Grand Prix Krakow 2007 (LRW standard) | starting rating: 1537 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 76 | Marosz, Robert (1500) | Lost 1-2 | -191518 |
| 2standard | 147 | Rola, Piotr (1446) | Lost 0-2 | -191499 |
| 3standard | 180 | Sautsa, Dzmitry (1465) | Lost 0-2 | -191480 |
| top | average opponent: 1470record: 0-3 | new rating: 1480 | ||
| Grand Prix Cardiff 2006 (GPT limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 121 | Dattani, Amar (1500) | Lost 0-2 | -181482 |
| 2sealed | 140 | Samra, Baljeet (1485) | Won 0-0 | +181500 |
| 3sealed | 61 | Wallace, Raymond (1401) | Won 2-0 | +161516 |
| 4sealed | 85 | Ng, Jack Yu Kiu (1541) | Lost 0-2 | -171499 |
| 5sealed | 98 | Brophy, Jim (1498) | Won 2-0 | +181517 |
| 6sealed | 86 | Rose, Hywel (1523) | Won 2-0 | +181535 |
| 7sealed | 37 | Griffiths, Pip (1535) | Won 2-1 | +181553 |
| 8sealed | 29 | Polasek, Filip (1668) | Lost 0-2 | -161537 |
| top | average opponent: 1519record: 5-3 | new rating: 1537 | ||