Welch, Andrew
Current rating: 1545
Record: 8-6
| Grand Prix Washington DC 2019 (MH1 limited) | starting rating: 1503 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 147 | Leek, Ryan (1557) | Lost 1-2 | -171486 |
| 2sealed | 307 | Schupp, Jeffrey (1431) | Won 0-0 | +171503 |
| 3sealed | 264 | Lim, Isaac (1499) | Won 2-1 | +181521 |
| 4sealed | 346 | Waller, Ozzie (1576) | Lost 1-2 | -171504 |
| 5sealed | 277 | Feldman, Joshua (1695) | Won 2-1 | +221526 |
| 6sealed | 297 | Pine, Steven (1531) | Won 2-1 | +181544 |
| 7sealed | 186 | DiMaria, Henry (1482) | Lost 1-2 | -191525 |
| 8sealed | 189 | Miller, Daniel (1662) | Won 2-0 | +201545 |
| average opponent: 1554record: 5-3 | new rating: 1545 | |||
| Grand Prix Washington DC 2017 (HOU standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 220 | Wakilpoor, Mustafa (1500) | Won 2-0 | +181518 |
| 2standard | 270 | Brookshire, Andy (1604) | Won 2-0 | +201538 |
| 3standard | 269 | Cafaro, Tom (1519) | Lost 1-2 | -191519 |
| 4standard | 259 | Sarver, Cory (1479) | Won 2-0 | +171536 |
| 5standard | 218 | Baller, Michael (1582) | Lost 1-2 | -171519 |
| 6standard | 392 | Chen, Xin [USA] (1632) | Lost 0-2 | -161503 |
| average opponent: 1553record: 3-3 | new rating: 1503 | |||