Pirkle, Mark
Current rating: 1468
Record: 3-5
| Grand Prix Atlanta 2018 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 207 | Blackwell, John (1462) | Lost 0-2 | -191481 |
| 2modern | 526 | Hurst, Tim (1564) | Lost 0-2 | -161465 |
| 3modern | 718 | Boren, Rackley (1464) | Won 2-0 | +181483 |
| 4modern | 632 | Leese, Jessee (1483) | Won 2-1 | +181501 |
| 5modern | 384 | Lawson, Wade (1556) | Lost 1-2 | -171484 |
| 6modern | 498 | Bertarioni, Jeremy (1641) | Lost 0-2 | -151469 |
| 7modern | 492 | Nelson, Cody (1433) | Lost 1-2 | -191450 |
| 8modern | 400 | Kopf, Jonathan (1444) | Won 2-1 | +181468 |
| average opponent: 1506record: 3-5 | new rating: 1468 | |||