Mather, David
Current rating: 1424
Record: 5-11
| Grand Prix Richmond 2018 (std) (M19 standard) | starting rating: 1450 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 60 | Nester, Matthew (1504) | Lost 0-2 | -171433 |
| 2standard | 183 | Head, Jake (1483) | Won 2-0 | +191452 |
| 3standard | 280 | Sheppard, Bradley (1684) | Lost 1-2 | -141438 |
| 4standard | 337 | Nguyen, David (1677) | Lost 1-2 | -141424 |
| top | average opponent: 1587record: 1-3 | new rating: 1424 | ||
| Grand Prix Richmond 2018 (leg) (legacy) | starting rating: 1440 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 42 | Burch, Jasper (1604) | Won 2-1 | +211461 |
| 2legacy | 156 | Miller, Kyle (1633) | Lost 0-2 | -151446 |
| 3legacy | 274 | Riggin, Shawn 9733 (1496) | Won 2-0 | +191465 |
| 4legacy | 264 | Martin, Clyde (1661) | Lost 1-2 | -151450 |
| top | average opponent: 1599record: 2-2 | new rating: 1450 | ||
| Grand Prix Charlotte 2015 (modern) | starting rating: 1447 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 1275 | Moore, Shawn (1464) | Won 2-0 | +181465 |
| 2modern | 1434 | Williams, Robert (1490) | Won 2-1 | +191484 |
| 3modern | 1374 | Vaughan, Robert (1814) | Lost 0-2 | -131471 |
| 4modern | 1481 | Canfield, Jonathan (1669) | Lost 1-2 | -141457 |
| 5modern | 1259 | Little, Stephen (1490) | Lost 1-2 | -171440 |
| top | average opponent: 1585record: 2-3 | new rating: 1440 | ||
| Grand Prix Washington DC 2013 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 42 | Loprete, Sam (1500) | Lost 1-2 | -181482 |
| 2legacy | 455 | Gosselin, Christopher (1582) | Lost 0-2 | -161466 |
| 3legacy | 724 | Porter, Brian (1409) | Lost 0-2 | -191447 |
| top | average opponent: 1497record: 0-3 | new rating: 1447 | ||