Kheyfets, Greg
Current rating: 1446
| Grand Prix Boston-Worcester 2014 (modern) | starting rating: 1412 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 154 | Ford, Brian (1547) | Lost 1-2 | -151397 |
| 2modern | 370 | Ceprano, Peter (1561) | Lost 1-2 | -151382 |
| 3modern | 568 | Keenan, P.j. (1464) | Won 2-0 | +191401 |
| 4modern | 392 | Lemieux, Devon (1485) | Lost 0-2 | -161385 |
| 5modern | 487 | De Peyster, Rowen (1465) | Lost 0-2 | -171368 |
| 6modern | 431 | Martin, Caleb (1446) | Won 2-0 | +201388 |
| 7modern | 337 | Adams, Neil (1466) | Won 2-1 | +191407 |
| 8modern | 254 | Ouellet, Etienne (1487) | Won 2-0 | +191426 |
| 9modern | 194 | Hayner, Jacob (1519) | Won 2-0 | +201446 |
| top | average opponent: 1493record: 5-4 | new rating: 1446 | ||
| Grand Prix Washington DC 2010 (ROE standard) | starting rating: 1499 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 4 | Zimmerman, Brandon (1500) | Lost 0-2 | -181481 |
| 2standard | 392 | Jay, Kevin P (1482) | Lost 0-2 | -181463 |
| 3standard | 379 | Garcia, Christopher (1465) | Won 2-1 | +181481 |
| 4standard | 340 | Gordon, Jim (1482) | Lost 1-2 | -181463 |
| 5standard | 355 | Weber, Scott (1473) | Lost 0-2 | -181445 |
| 6standard | 310 | Clamons, Samuel (1447) | Lost 1-2 | -181427 |
| 7standard | 241 | Potter, Jason (1506) | Lost 0-2 | -161411 |
| 8standard | 176 | Agnone, Anthony (1448) | Lost 0-2 | -171394 |
| 9standard | 121 | Harriman, Christopher (1430) | Won 2-0 | +181412 |
| top | average opponent: 1470record: 2-7 | new rating: 1412 | ||
| Grand Prix Boston 2009 (M10 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 56 | Olsen, Dan (1500) | Lost 0-2 | -181482 |
| 2sealed | 282 | Gaudreau, Adam (1482) | Lost 0-2 | -181464 |
| 3sealed | 334 | Ricciardelli, Nicholas (1465) | Draw 1-1 | 01464 |
| 4sealed | 323 | Denault-Reynolds, Hilary (1407) | Won 2-0 | +171481 |
| 5sealed | 265 | Gagne, Timothy (1483) | Won 2-1 | +181499 |
| 6sealed | 205 | Jutras, Chris (1499) | Lost 0-2 | -181481 |
| 7sealed | 170 | Gordon, Michael (1466) | Won 2-0 | +181499 |
| 8sealed | 123 | Brett, Robert F (1518) | Won 2-0 | +181517 |
| 9sealed | 85 | Martineau, Randy (1518) | Lost 1-2 | -181499 |
| top | average opponent: 1482record: 4-4-1 | new rating: 1499 | ||