Hartsfield, Jason
Current rating: 1413
Record: 14-20-2
| Grand Prix Orlando 2017 (AER limited) | starting rating: 1453 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 788 | Lowe, Thomas (1500) | Lost 1-2 | -171436 |
| 2sealed | 865 | Richmann, Adrian (1606) | Lost 0-2 | -151421 |
| 3sealed | 1137 | Esposito, John (1632) | Lost 1-2 | -141407 |
| 4sealed | 1125 | Hayes, Daniel (1459) | Lost 0-2 | -171390 |
| 5sealed | 1106 | Jones, Nathanya (1428) | Won 2-1 | +191409 |
| 6sealed | 1058 | Macfarlan, Tom (1449) | Lost 0-2 | -181391 |
| 7sealed | 989 | White, Hebron (1431) | Won 2-0 | +191410 |
| 8sealed | 925 | Pavilonis, Christopher (1564) | Lost 0-2 | -151395 |
| 9sealed | 870 | Colletta, Adam (1426) | Won 2-0 | +181413 |
| top | average opponent: 1499record: 3-6 | new rating: 1413 | ||
| Grand Prix Atlanta 2016 (KLD limited) | starting rating: 1508 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 549 | Sandow, Lee (1500) | Lost 0-2 | -181490 |
| 2sealed | 1137 | Johnson, James 2 (1483) | Won 2-0 | +181508 |
| 3sealed | 983 | Levesque, Anthony (1502) | Lost 0-2 | -181490 |
| 4sealed | 1060 | Ngai, Stephen (1482) | Won 2-0 | +181508 |
| 5sealed | 1106 | Ashford, Steven (1477) | Lost 1-2 | -191489 |
| 6sealed | 1051 | Rust, Brian (1509) | Lost 0-2 | -181471 |
| 7sealed | 1054 | Espinosa, Carlos (1481) | Lost 0-2 | -171454 |
| 8sealed | 1004 | Reith, Josh (1440) | Won 2-1 | +171471 |
| 9sealed | 919 | Nguyen, Tuyen (1468) | Lost 0-2 | -181453 |
| top | average opponent: 1482record: 3-6 | new rating: 1453 | ||
| Grand Prix Atlanta 2015 (BFZ limited) | starting rating: 1481 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 104 | Simpson, Chad (1446) | Lost 0-2 | -191462 |
| 2sealed | 689 | Snow, James (1401) | Won 2-0 | +171479 |
| 3sealed | 808 | Blackwelder, Zachary (1500) | Won 2-0 | +191498 |
| 4sealed | 292 | Wittkopf, David (1509) | Lost 0-2 | -181480 |
| 5sealed | 581 | Dibble, Matthew (1505) | Won 2-0 | +181498 |
| 6sealed | 449 | Rogers, Travis (1513) | Lost 0-2 | -171481 |
| 7sealed | 423 | Redman, Kelly (1483) | Won 2-0 | +181499 |
| 8sealed | 332 | Brumby, Gene (1719) | Won 2-0 | +221521 |
| 9sealed | 200 | Huang, Hao-Shan (1834) | Lost 0-2 | -131508 |
| top | average opponent: 1546record: 5-4 | new rating: 1508 | ||
| Grand Prix Orlando 2014 (KTK limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 907 | Bowles, Jordan (1482) | Lost 0-2 | -181482 |
| 2sealed | 919 | Wong, Bernice (1482) | Draw 1-1 | 01482 |
| 3sealed | 448 | Chung, Brandon (1482) | Won 2-1 | +181500 |
| 4sealed | 331 | Gribbin, Sean (1500) | Lost 0-0 | -181482 |
| 5sealed | 375 | Palaschak, Brett (1483) | Won 2-0 | +181500 |
| 6sealed | 286 | Krangel, Eric (1515) | Lost 1-2 | -181482 |
| 7sealed | 236 | Patton, Brandon (1478) | Won 2-1 | +181500 |
| 8sealed | 167 | Snyder, Joe (1499) | Draw 1-1 | 01500 |
| 9sealed | 133 | Mickel, Freddy (1450) | Lost 0-2 | -191481 |
| top | average opponent: 1486record: 3-4-2 | new rating: 1481 | ||