Goldfarb, Howard
Current rating: 1418
| Grand Prix Toronto 2013 (THS limited) | starting rating: 1427 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 30 | Edelman, Terry (1500) | Lost 0-2 | -171410 |
| 2sealed | 572 | Courson, Dawson (1482) | Lost 0-2 | -161394 |
| 3sealed | 624 | Tang, Ivan (1518) | Lost 0-2 | -161378 |
| 4sealed | 682 | Hart, Alex (1442) | Won 2-1 | +191397 |
| 5sealed | 64 | Hurst, Christopher (1463) | Won 2-0 | +191416 |
| 6sealed | 73 | Leavitt, Ciaran Llachlan (1449) | Won 2-0 | +191435 |
| 7sealed | 382 | Abuhashish, Jamie (1503) | Lost 0-2 | -171418 |
| top | average opponent: 1480record: 3-4 | new rating: 1418 | ||
| Grand Prix Toronto 2012 (modern) | starting rating: 1462 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 48 | Van der Ploeg, Kris (1500) | Lost 1-2 | -171445 |
| 2modern | 316 | Risner, James (1391) | Won 2-0 | +171462 |
| 3modern | 347 | Malenczak, Matthew (1473) | Lost 1-2 | -181444 |
| 4modern | 342 | Maher, John (1396) | Won 2-0 | +171461 |
| 5modern | 319 | Leduc, Logan (1502) | Lost 1-2 | -171444 |
| 6modern | 337 | Warner, Casey (1483) | Lost 0-2 | -171427 |
| top | average opponent: 1457record: 2-4 | new rating: 1427 | ||
| Grand Prix Kansas City 2011 (NPH limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 28 | Wood, Aaron M (1500) | Lost 0-2 | -181482 |
| 2sealed | 305 | Gruber, Kevin (1411) | Draw 1-1 | -11481 |
| 3sealed | 314 | Forrest, Ivan (1482) | Won 2-0 | +181499 |
| 4sealed | 290 | Adams, Josh (1482) | Lost 1-2 | -191480 |
| 5sealed | 336 | Melo, Daniel C (1482) | Lost 0-2 | -181462 |
| top | average opponent: 1471record: 1-3-1 | new rating: 1462 | ||