Durham, Lester
Current rating: 1423
Record: 12-17-1
| Grand Prix Atlanta 2017 (XLN standard) | starting rating: 1453 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 84 | Lash, David (1500) | Lost 0-2 | -181435 |
| 2standard | 84 | Krakora, Walter (1482) | Won 2-1 | +191454 |
| 3standard | 84 | Schultz, Evan (1495) | Lost 1-2 | -171437 |
| 4standard | 84 | Ames, Jason (1478) | Lost 1-2 | -171420 |
| 5standard | 84 | Brewer, Barrett (1470) | Won 2-0 | +191439 |
| 6standard | 84 | Buzzard, Matthew (1491) | Lost 1-2 | -171422 |
| 7standard | 84 | Gooch, Taylor (1463) | Won 2-1 | +181440 |
| 8standard | 84 | Pena, Christopher (1462) | Lost 0-2 | -171423 |
| top | average opponent: 1480record: 3-5 | new rating: 1423 | ||
| Grand Prix Charlotte 2016 (modern) | starting rating: 1466 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 311 | Zook, Kyle (1500) | Lost 1-2 | -181448 |
| 2modern | 169 | Key, Lance (1482) | Lost 1-2 | -171431 |
| 3modern | 169 | Poole, Ben (1465) | Won 2-0 | +181449 |
| 4modern | 169 | Quiroga, Eric (1482) | Lost 0-2 | -171432 |
| 5modern | 169 | Hill, Jesse (1522) | Won 2-0 | +201452 |
| 6modern | 169 | Simpson, Kevin (1531) | Won 2-1 | +191471 |
| 7modern | 169 | Taylor, Peter (1479) | Won 2-0 | +181489 |
| 8modern | 169 | Wakefield, Lindsay (1424) | Lost 1-2 | -191470 |
| 9modern | 169 | Laney, George (1495) | Lost 0-2 | -171453 |
| top | average opponent: 1487record: 4-5 | new rating: 1453 | ||
| Grand Prix New Jersey 2014 (legacy) | starting rating: 1483 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 1548 | Pogorzhelsky, Alessandro (1531) | Draw 1-1 | +11484 |
| 2legacy | 1753 | Brennan, Jack (1437) | Lost 0-2 | -191465 |
| 3legacy | 1970 | Bell, Douglas (1483) | Won 2-0 | +181483 |
| 4legacy | 1821 | Dyer, Derrick (1518) | Lost 1-2 | -171466 |
| top | average opponent: 1492record: 1-2-1 | new rating: 1466 | ||
| Grand Prix Charlotte 2013 (GTC limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 702 | Ballard, Steven (1500) | Lost 0-2 | -181482 |
| 2sealed | 1168 | Sibley, Robert (1482) | Lost 1-2 | -181464 |
| 3sealed | 1145 | Hoss, Ryan (1464) | Won 2-0 | +181482 |
| 4sealed | 1124 | Walsh, Mike (1431) | Won 2-0 | +171499 |
| 5sealed | 990 | Quinn, Jeffrey (1503) | Won 2-1 | +181517 |
| 6sealed | 955 | Jenkins, Robert (1519) | Won 2-1 | +181535 |
| 7sealed | 804 | Houghtaling, Matt (1517) | Lost 0-2 | -181517 |
| 8sealed | 442 | Ajemian, Christopher (1601) | Lost 1-2 | -171500 |
| 9sealed | 442 | Deep, Daniel (1514) | Lost 1-2 | -171483 |
| top | average opponent: 1503record: 4-5 | new rating: 1483 | ||