Biddulph, Owain
Current rating: 1551
Record: 5-2-1
| Grand Prix Antwerp 2013 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 86 | Strzelczyk, Ansgar (1548) | Won 2-1 | +191519 |
| 2modern | 117 | Rietveld, Vincent (1427) | Won 2-1 | +161535 |
| 3modern | 293 | Ruckpaul, Lars (1442) | Draw 1-1 | -21533 |
| 4modern | 209 | Simmonds, Alex (1501) | Won 2-0 | +181551 |
| 5modern | 107 | Amaral da Cruz, Duarte (1491) | Lost 0-2 | -191532 |
| 6modern | 239 | Joly, Olivier (1577) | Lost 0-2 | -171515 |
| 7modern | 366 | Simon, Lars (1520) | Won 2-0 | +181533 |
| 8modern | 260 | Canetti, Alberto (1535) | Won 2-1 | +181551 |
| average opponent: 1505record: 5-2-1 | new rating: 1551 | |||