Ernstoff, Jeremy
Current rating: 1460
Record: 10-14
| Grand Prix Cleveland 2019 (RNA limited) | starting rating: 1495 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 66 | Boockvar-Klein, Jesse (1500) | Lost 1-2 | -181477 |
| 2sealed | 330 | Suttles, Mike (1482) | Won 2-0 | +181495 |
| 3sealed | 297 | Plazek, Joseph (1420) | Lost 0-2 | -191476 |
| 4sealed | 458 | Cullum, Travis (1560) | Lost 0-2 | -161460 |
| top | average opponent: 1490record: 1-3 | new rating: 1460 | ||
| Grand Prix Pittsburgh 2018 (DOM standard) | starting rating: 1445 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 12 | Phillips, Tyler (1500) | Won 2-1 | +191464 |
| 2standard | 119 | Wolfe, Ryan (1413) | Won 2-0 | +181482 |
| 3standard | 165 | Bodnar, Stephen (1783) | Lost 0-2 | -131469 |
| 4standard | 254 | Hernandez, Trent (1533) | Won 2-1 | +191488 |
| 5standard | 213 | Wen, Gavin (1550) | Lost 0-2 | -171471 |
| 6standard | 227 | Heitzman, Jimmy (1461) | Won 2-0 | +181489 |
| 7standard | 197 | Conn, Alexander (1713) | Won 2-1 | +221511 |
| 8standard | 146 | Zeiler, Daniel (1639) | Lost 1-2 | -161495 |
| top | average opponent: 1574record: 5-3 | new rating: 1495 | ||
| Grand Prix Louisville 2017 (legacy) | starting rating: 1447 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 632 | Rouse, Bobby (1413) | Won 2-1 | +181465 |
| 2legacy | 516 | Maise, Andrew (1259) | Won 2-1 | +141479 |
| 3legacy | 578 | Petre, Evan (2088) | Won 2-1 | +281507 |
| 4legacy | 407 | Dean, Paul (2045) | Lost 0-2 | -91498 |
| 5legacy | 413 | Younger, Alejandro (1634) | Lost 0-2 | -161482 |
| 6legacy | 532 | Sudendorf, Vanessa (1469) | Won 2-1 | +181500 |
| 7legacy | 526 | Baggett, James (1494) | Lost 1-2 | -181482 |
| 8legacy | 633 | Combs, Floyd (1472) | Lost 0-2 | -181464 |
| 9legacy | 661 | Froehlich, Gavin (1448) | Lost 0-2 | -191445 |
| top | average opponent: 1591record: 4-5 | new rating: 1445 | ||
| Grand Prix Cleveland 2015 (FRF limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 232 | Kauffman, Justin (1500) | Lost 0-2 | -181482 |
| 2sealed | 652 | Materewicz, Christopher (1563) | Lost 0-2 | -171465 |
| 3sealed | 854 | Tucker, Ryan (1459) | Lost 1-2 | -181447 |
| top | average opponent: 1507record: 0-3 | new rating: 1447 | ||