Tuning, Jeff
Current rating: 1452
| Grand Prix Atlanta 2018 (modern) | starting rating: 1466 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 328 | Zuelke, Christian (1473) | Won 2-0 | +181484 |
| 2modern | 309 | Kinsey, David (1534) | Won 2-0 | +191503 |
| 3modern | 102 | Poole, Tj (1390) | Lost 0-2 | -201483 |
| 4modern | 437 | Braswell, Daniel (1517) | Lost 0-2 | -171466 |
| 5modern | 447 | Karam, Vinicius (1708) | Lost 0-2 | -141452 |
| top | average opponent: 1524record: 2-3 | new rating: 1452 | ||
| Grand Prix Orlando 2014 (KTK limited) | starting rating: 1483 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 385 | Price Jr, Shawn (1500) | Won 2-0 | +191502 |
| 2sealed | 373 | Owens, Seth (1518) | Won 2-1 | +181520 |
| 3sealed | 181 | Samuels III, Donald E (1500) | Lost 1-2 | -191501 |
| 4sealed | 239 | Jourdan, Bliss (1519) | Lost 0-0 | -171484 |
| 5sealed | 369 | Baxter, Billy (1498) | Lost 0-2 | -181466 |
| top | average opponent: 1507record: 2-3 | new rating: 1466 | ||
| Grand Prix Miami 2013 (DGM standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 6 | Sodaghar, Joshua (1500) | Lost 0-2 | -181482 |
| 2standard | 415 | Felix, George (1486) | Lost 1-2 | -181464 |
| 3standard | 464 | Casas, Sixto (1464) | Lost 0-2 | -181446 |
| 4standard | 572 | Davis, Darrin (1445) | Won 2-0 | +181464 |
| 5standard | 488 | Meyle, Mitchell (1462) | Won 2-0 | +181482 |
| 6standard | 401 | Watkins, Chris (1483) | Won 2-0 | +181500 |
| 7standard | 342 | Ramirez de Arellano, Alex (1500) | Lost 1-2 | -181482 |
| 8standard | 280 | Russell, Matthew (1540) | Lost 0-2 | -171465 |
| 9standard | 245 | Cruz, Ryan A (1474) | Won 2-0 | +181483 |
| top | average opponent: 1484record: 4-5 | new rating: 1483 | ||