Postance, Matthew
Current rating: 1381
Record: 2-9-1
| Grand Prix Birmingham 2017 (modern) | starting rating: 1449 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 413 | Van Goethem, Stijn (1756) | Lost 0-2 | -121437 |
| 2modern | 602 | Zhu, Ze (1472) | Lost 0-0 | -181419 |
| 3modern | 741 | Perry, Emma (1431) | Lost 0-2 | -171402 |
| 4modern | 839 | Casamenti, Andrea (1271) | Lost 0-2 | -211381 |
| average opponent: 1483record: 0-4 | new rating: 1381 | |||
| Grand Prix London 2015 (ORI standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 680 | Grant, Olivier (1500) | Draw 1-1 | 01500 |
| 2standard | 829 | Wraith, Mark (1598) | Won 2-0 | +201520 |
| 3standard | 817 | Gilliver, Liam (1518) | Lost 1-2 | -181502 |
| 4standard | 915 | Burns, Jude (1499) | Won 2-1 | +181520 |
| 5standard | 816 | Pancrazi, Roberto (1616) | Lost 0-2 | -171503 |
| 6standard | 893 | Bales, Rhys (1499) | Lost 1-2 | -181485 |
| 7standard | 675 | Marrable, Peter (1481) | Lost 0-2 | -181467 |
| 8standard | 635 | Knock, David (1467) | Lost 1-2 | -181449 |
| average opponent: 1522record: 2-5-1 | new rating: 1449 | |||