Petersen, Andrew
Current rating: 1437
Record: 4-8
| Grand Prix Minneapolis 2018 (M19 limited) | starting rating: 1466 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 103 | Ernst, Corey (1499) | Won 2-1 | +181484 |
| 2sealed | 165 | Westphal, Jesse (1518) | Lost 0-2 | -171467 |
| 3sealed | 345 | Walser-Kuntz, Ryan (1499) | Lost 1-2 | -181449 |
| 4sealed | 539 | Linne, Arthur (1615) | Won 2-1 | +211470 |
| 5sealed | 480 | Yaritz, Erin (1503) | Lost 0-2 | -171453 |
| 6sealed | 433 | Morelli, Joe (1552) | Lost 0-2 | -161437 |
| average opponent: 1531record: 2-4 | new rating: 1437 | |||
| Grand Prix Minneapolis 2009 (ZEN limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 97 | Jesse, Zachary (1549) | Won 2-0 | +191519 |
| 3sealed | 112 | Elliott, Justin (1468) | Lost 0-2 | -191500 |
| 4sealed | 190 | Hagemeister, Brandon (1517) | Won 2-0 | +181518 |
| 5sealed | 167 | Misson, Adam (1536) | Lost 1-2 | -171501 |
| 6sealed | 204 | Stevens, Jarred (1518) | Lost 1-2 | -181483 |
| 8sealed | 172 | Genzman, Thomas (1518) | Lost 0-2 | -171466 |
| average opponent: 1517record: 2-4 | new rating: 1466 | |||