Zimmermann, Steven
Current rating: 1441
| Grand Prix Atlanta 2017 (XLN standard) | starting rating: 1477 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 262 | Fratt, Joshua (1500) | Lost 0-2 | -171460 |
| 2standard | 514 | Jones, Christopher (1477) | Won 2-0 | +181478 |
| 3standard | 387 | Janowiak Mulligan, Blythe (1407) | Lost 0-2 | -191459 |
| 4standard | 462 | Clampitt, Gene (1489) | Lost 0-1 | -181441 |
| top | average opponent: 1468record: 1-3 | new rating: 1441 | ||
| Grand Prix Atlantic City 2015 (DTK limited) | starting rating: 1517 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 244 | Russo, Brandon (1500) | Won 2-0 | +181535 |
| 2sealed | 328 | Cervino, Thomas (1436) | Lost 1-2 | -201515 |
| 3sealed | 572 | Karakarlis, Andrew (1451) | Lost 1-2 | -191496 |
| 4sealed | 694 | Lopez, Jose Manuel (1462) | Lost 1-2 | -191477 |
| top | average opponent: 1462record: 1-3 | new rating: 1477 | ||
| Grand Prix Orlando 2014 (KTK limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 339 | Barthe, Matthew (1500) | Draw 1-1 | 01500 |
| 2sealed | 1001 | Evans, Warren (1479) | Won 2-0 | +181518 |
| 3sealed | 214 | Stout, Wayne (1391) | Won 2-0 | +151533 |
| 4sealed | 105 | Seuzeneau, Brandon (1555) | Won 0-0 | +191552 |
| 5sealed | 52 | Soldevila, Josue (1552) | Lost 0-2 | -181534 |
| 6sealed | 141 | Condon, Brett (1535) | Won 2-0 | +181552 |
| 7sealed | 87 | Harris, Zach (1532) | Lost 1-2 | -191533 |
| 8sealed | 141 | Creech, Lawrence (1624) | Lost 0-2 | -161517 |
| top | average opponent: 1521record: 4-3-1 | new rating: 1517 | ||