Biddell, Jack
Current rating: 1481
Record: 2-3
| Grand Prix London 2013 (GTC limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 293 | Tsen, Ashley (1500) | Lost 0-2 | -181482 |
| 2sealed | 632 | Steelyard, Matthew (1427) | Won 2-0 | +171499 |
| 3sealed | 687 | Odak, Hrvoje (1474) | Lost 1-2 | -181481 |
| 4sealed | 779 | King, James G (1526) | Won 2-1 | +181499 |
| 5sealed | 646 | Donaldson, Cale (1504) | Lost 1-2 | -181481 |
| average opponent: 1486record: 2-3 | new rating: 1481 | |||