Mack, Brennan
Current rating: 1528
Record: 12-11-2
| Grand Prix Las Vegas 2018 (limited) (DOM limited) | starting rating: 1468 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 312 | Wang, Justin (1458) | Won 2-1 | +181486 |
| 2sealed | 352 | Celestino, Elizer (1533) | Draw 1-1 | 01486 |
| 3sealed | 438 | Campbell, Brad (1525) | Won 2-0 | +191505 |
| 4sealed | 238 | Wredberg, Christopher (1490) | Won 2-0 | +181523 |
| 5sealed | 119 | Anderson, Kevin (1540) | Won 2-0 | +181541 |
| 6sealed | 57 | Sun, Qiushi (1624) | Lost 0-2 | -161525 |
| 7sealed | 159 | Pembleton, Barry (1600) | Won 2-0 | +191544 |
| 8sealed | 93 | Weidetz, Erich (1633) | Lost 0-2 | -161528 |
| top | average opponent: 1550record: 5-2-1 | new rating: 1528 | ||
| Grand Prix Las Vegas 2017 (limited) (AKH limited) | starting rating: 1484 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 236 | Kahn, Max (1511) | Lost 1-2 | -181466 |
| 2sealed | 617 | Nguyen, Vincent (1482) | Lost 0-2 | -181448 |
| 3sealed | 1037 | Taxara, Tammy (1470) | Won 2-0 | +191467 |
| 4sealed | 941 | Herdman, William (1379) | Won 2-1 | +161483 |
| 5sealed | 843 | Hogan, Kyle (1627) | Lost 0-2 | -151468 |
| top | average opponent: 1494record: 2-3 | new rating: 1468 | ||
| Grand Prix Albuquerque 2016 (SOI limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 341 | Bahr, Michael (1521) | Won 2-0 | +181518 |
| 2sealed | 153 | Jones, Mike (1529) | Draw 1-1 | +11519 |
| 3sealed | 291 | Bezerra-Clark, Christopher (1566) | Lost 1-2 | -181501 |
| 4sealed | 406 | White, Michael (1524) | Lost 0-2 | -171484 |
| 5sealed | 457 | Leyba, Julian (1483) | Won 2-0 | +181502 |
| 6sealed | 366 | Walski, John (1485) | Lost 0-2 | -181484 |
| top | average opponent: 1518record: 2-3-1 | new rating: 1484 | ||
| Grand Prix Las Vegas 2015 (2) (MM2 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 153 | Chu, Peter (1501) | Lost 0-2 | -181482 |
| 2sealed | 359 | Cheek, Brendon (1482) | Won 2-0 | +181500 |
| 3sealed | 204 | Leavitt, Gavin (1499) | Won 2-1 | +181518 |
| 4sealed | 189 | Robinson, Curtis (1504) | Won 2-0 | +181536 |
| 5sealed | 178 | Wesley, Sebastian (1535) | Lost 0-2 | -181518 |
| 6sealed | 220 | Sadowski, Mark (1534) | Lost 0-2 | -181500 |
| top | average opponent: 1509record: 3-3 | new rating: 1500 | ||