Walch, Trevor
Current rating: 1445
| Grand Prix Birmingham 2019 (modern) | starting rating: 1479 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 231 | Colding-Jorgensen, Martin (1584) | Lost 0-2 | -161463 |
| 2modern | 322 | Williams, Daniel (1433) | Won 2-1 | +171480 |
| 3modern | 224 | Zeal, Dominic (1636) | Lost 0-2 | -151465 |
| 4modern | 340 | Martin, Luke (1377) | Lost 0-2 | -201445 |
| top | average opponent: 1508record: 1-3 | new rating: 1445 | ||
| Grand Prix Birmingham 2018 (std) (DOM standard) | starting rating: 1519 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 104 | Chaidez, Jorge (1500) | Lost 1-2 | -181501 |
| 2standard | 331 | Wilkey, Mathew (1435) | Won 2-1 | +171518 |
| 3standard | 451 | Horwood, Barry (1400) | Lost 0-2 | -201498 |
| 4standard | 449 | Sayers, Kyeran (1447) | Lost 1-2 | -191479 |
| top | average opponent: 1445record: 1-3 | new rating: 1479 | ||
| Grand Prix Manchester 2016 (SOI standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 119 | Tattersall, Gary (1499) | Lost 0-2 | -181482 |
| 2standard | 533 | Lankester, Martin (1482) | Lost 0-2 | -181464 |
| 3standard | 808 | Pell, Adam (1473) | Won 2-0 | +181482 |
| 4standard | 639 | Bridgwood, Richard (1499) | Won 2-0 | +181500 |
| 5standard | 506 | Stevens, Thomas (1482) | Won 2-0 | +181518 |
| 6standard | 405 | Ravenshear, Stuart (1600) | Lost 0-2 | -161502 |
| 7standard | 537 | Clough, Alex (1497) | Won 2-1 | +171519 |
| 8standard | 422 | Krejci, Radek (1488) | Won 2-1 | +181537 |
| 9standard | 282 | Major, Steven (1556) | Lost 1-2 | -181519 |
| top | average opponent: 1508record: 5-4 | new rating: 1519 | ||