Ackley, Kenneth
Current rating: 1503
| Grand Prix Columbus 2019 (modern) | starting rating: 1486 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 39 | Meadows, Joey (1500) | Won 2-0 | +181504 |
| 2modern | 42 | McCready, Robert (1506) | Won 2-1 | +181522 |
| 3modern | 21 | Burgess, Blake (1457) | Lost 1-2 | -191503 |
| 4modern | 112 | Abuhashish, Jamie (1520) | Lost 0-2 | -181485 |
| 5modern | 188 | Starrs, Thomas (1502) | Won 2-1 | +191504 |
| 6modern | 119 | Kay, Matt (1437) | Won 2-0 | +161520 |
| 7modern | 86 | Hoxie, Richard (1549) | Lost 1-2 | -171503 |
| top | average opponent: 1496record: 4-3 | new rating: 1503 | ||
| Grand Prix Charlotte 2016 (modern) | starting rating: 1483 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 465 | Greene, Aaron (1500) | Won 2-1 | +191502 |
| 2modern | 431 | Colegrove, Bobby (1492) | Lost 1-2 | -191483 |
| 3modern | 648 | Schiel, Thomas (1502) | Won 2-1 | +191502 |
| 4modern | 94 | Gooch, Spencer (1482) | Lost 1-2 | -191483 |
| 5modern | 536 | Ivie, Justin (1437) | Lost 0-2 | -191464 |
| 6modern | 493 | Wakefield, Bryan (1419) | Won 2-0 | +181482 |
| 7modern | 624 | Brockway, Marc (1512) | Won 2-0 | +181500 |
| 8modern | 506 | Niece, Lee (1707) | Lost 1-2 | -141486 |
| top | average opponent: 1506record: 4-4 | new rating: 1486 | ||
| Grand Prix Charlotte 2015 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 954 | Chardavoine, Jamaal M (1506) | Lost 1-2 | -181482 |
| 2modern | 972 | Hedges, James P (1482) | Lost 1-2 | -181464 |
| 3modern | 1124 | Baker, Brian N (1563) | Won 2-0 | +201484 |
| 4modern | 1008 | Salvatore, Anthony R (1482) | Won 2-0 | +181502 |
| 5modern | 858 | Antonioli, Nate (1465) | Lost 0-2 | -191483 |
| top | average opponent: 1499record: 2-3 | new rating: 1483 | ||