Ackerman, Chris
Current rating: 1481
Record: 15-17-1
| Grand Prix Las Vegas 2019 (modern) (modern) | starting rating: 1529 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 127 | Andrews, Alexander (1500) | Lost 1-2 | -181511 |
| 2modern | 603 | Eslami, Curtis (1744) | Won 2-1 | +221533 |
| 3modern | 642 | Smith, Matthew 6702 (1582) | Lost 1-2 | -171516 |
| 4modern | 731 | Vallas, Nick (1546) | Lost 0-2 | -181498 |
| 5modern | 96 | Kaska, Chris (1501) | Lost 1-2 | -171481 |
| top | average opponent: 1574record: 1-4 | new rating: 1481 | ||
| Grand Prix Denver 2011 (MBS limited) | starting rating: 1509 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 63 | Smith, Anthony (1517) | Lost 0-2 | -181491 |
| 2sealed | 147 | Adams, Spencer (1482) | Won 2-0 | +181509 |
| 3sealed | 109 | Stewart, Mike (1476) | Won 2-0 | +171526 |
| 4sealed | 102 | Sanders, Joshua (1365) | Won 2-1 | +151541 |
| 5sealed | 76 | Yelton, Taylor (1610) | Draw 1-1 | +11542 |
| 6sealed | 62 | Galbiati, Tim (1767) | Lost 0-2 | -141528 |
| 7sealed | 84 | Hinsz, Mark (1611) | Won 2-1 | +201548 |
| 8sealed | 60 | McClintock, Colin (1524) | Lost 1-2 | -191529 |
| top | average opponent: 1544record: 4-3-1 | new rating: 1529 | ||
| Grand Prix Minneapolis 2009 (ZEN limited) | starting rating: 1466 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 93 | Viers, Trey (1500) | Won 2-1 | +181484 |
| 2sealed | 252 | Langer, Joe (1518) | Won 2-0 | +191503 |
| 3sealed | 13 | Spindler, Ryan (1554) | Lost 0-2 | -171486 |
| 4sealed | 208 | McGregor, Pat (1568) | Lost 0-2 | -171469 |
| 5sealed | 288 | Anderson, Nate (1500) | Won 2-1 | +191488 |
| 6sealed | 195 | Shriver, Paul (1518) | Won 2-0 | +191507 |
| 7sealed | 220 | Herr, Paul (1606) | Won 2-1 | +191526 |
| 8sealed | 69 | Bontkowski, Eddie (1537) | Lost 1-2 | -171509 |
| top | average opponent: 1538record: 5-3 | new rating: 1509 | ||
| Grand Prix Seattle 2009 (ARB standard) | starting rating: 1483 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 131 | Conrad, Michael (1448) | Lost 1-2 | -191464 |
| 2standard | 325 | Curran, Lee V (1482) | Lost 1-2 | -171447 |
| 3standard | 477 | Ouellet, Adam (1464) | Won 2-0 | +181465 |
| 4standard | 459 | Turner, Clint S (1482) | Lost 1-2 | -181447 |
| 5standard | 461 | Shannon, Joshua (1465) | Won 2-0 | +181465 |
| 6standard | 360 | Lammers, Danny (1480) | Won 2-1 | +191484 |
| 7standard | 275 | Toker, Dereck (1487) | Lost 1-2 | -181466 |
| top | average opponent: 1473record: 3-4 | new rating: 1466 | ||
| Grand Prix Los Angeles 2009 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 84 | Alvarado Lopez, Jorge (1500) | Lost 1-2 | -181482 |
| 2extended | 246 | Chun, Charlie (1483) | Won 2-1 | +181500 |
| 3extended | 235 | Harrington, Bryan (1549) | Won 2-1 | +191519 |
| 4extended | 254 | Asher, Micheal (1517) | Lost 0-2 | -181501 |
| 5extended | 226 | Laursen, Johnathan (1500) | Lost 1-2 | -181483 |
| top | average opponent: 1510record: 2-3 | new rating: 1483 | ||