Polk, Andrew
Current rating: 1488
| Grand Prix Atlanta 2016 (KLD limited) | starting rating: 1489 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 950 | Trumbull, Philip (1479) | Lost 0-2 | -181471 |
| 2sealed | 1148 | Purcell, David (1481) | Won 2-1 | +181489 |
| 3sealed | 1006 | Howes, Gordon (1462) | Won 2-0 | +181507 |
| 4sealed | 916 | Parsons, William (1482) | Lost 0-2 | -191488 |
| top | average opponent: 1476record: 2-2 | new rating: 1488 | ||
| Grand Prix Atlanta 2015 (BFZ limited) | starting rating: 1526 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 208 | Ma, Jesse (1524) | Lost 0-2 | -181508 |
| 2sealed | 666 | Scott, Jacob (1485) | Lost 1-2 | -191489 |
| top | average opponent: 1505record: 0-2 | new rating: 1489 | ||
| Grand Prix Charlotte 2013 (GTC limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 985 | STOOTS, APRIL D (1500) | Won 2-0 | +181518 |
| 2sealed | 809 | Stenstrom, Grant (1437) | Won 2-0 | +171535 |
| 3sealed | 827 | Wiznitzer, Aryeh (1587) | Won 2-0 | +181553 |
| 4sealed | 785 | Green, Stephen (1576) | Won 2-1 | +191572 |
| 5sealed | 694 | McAtee, Brian (1556) | Lost 1-2 | -181554 |
| 6sealed | 828 | Li, Chen (1691) | Lost 0-2 | -161538 |
| 7sealed | 859 | Tietze, Maxwell (1849) | Lost 0-2 | -121526 |
| top | average opponent: 1599record: 4-3 | new rating: 1526 | ||