Epstein, David
Current rating: 1371
| Grand Prix Tampa Bay 2019 (modern) | starting rating: 1397 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 241 | Seng, Christopher (1500) | Lost 0-2 | -161381 |
| 2modern | 334 | Matta-Nieves, Joel (1483) | Lost 0-2 | -161365 |
| 3modern | 469 | Myers, Christopher (1464) | Draw 1-1 | +21367 |
| 4modern | 434 | Nauck, James (1406) | Won 2-1 | +191386 |
| 5modern | 360 | Angelo, Andrew (1490) | Draw 0-0 | +11387 |
| 6modern | 326 | Mendoza, Zachary (1468) | Lost 0-2 | -161371 |
| top | average opponent: 1468record: 1-3-2 | new rating: 1371 | ||
| Grand Prix Orlando 2018 (M19 standard) | starting rating: 1461 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 268 | Malcolm, Chad (1500) | Lost 0-2 | -171444 |
| 2standard | 354 | Gramly, James (1464) | Won 2-0 | +181462 |
| 3standard | 347 | Bartholomew, Matthew (1636) | Lost 1-2 | -151447 |
| 4standard | 431 | Fernandez, Carlos [USA] (1482) | Lost 0-2 | -171430 |
| 5standard | 418 | Sipe, Gary (1467) | Won 2-0 | +191449 |
| 6standard | 346 | Beasley, Shanice (1479) | Lost 1-2 | -181431 |
| 7standard | 305 | Allen, Jeremy (1498) | Lost 0-2 | -161415 |
| 8standard | 246 | Thompson, Dakota (1456) | Lost 1-2 | -181397 |
| top | average opponent: 1498record: 2-6 | new rating: 1397 | ||
| Grand Prix Miami 2015 (FRF standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 71 | Brace, Donald (1445) | Lost 0-2 | -191481 |
| 2standard | 547 | Humble, James (1481) | Won 2-0 | +181499 |
| 3standard | 463 | McLarty, Andrew (1468) | Lost 0-2 | -191480 |
| 4standard | 601 | Neimeiser, Samuel L (1483) | Lost 0-2 | -181462 |
| 5standard | 550 | Sanchez, Harry (1464) | Lost 0-2 | -171445 |
| 6standard | 466 | Carcasses, Samuel (1376) | Won 2-1 | +161461 |
| top | average opponent: 1453record: 2-4 | new rating: 1461 | ||