Feil, Joseph
Current rating: 1358
| Grand Prix Cleveland 2019 (RNA limited) | starting rating: 1399 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 53 | Priest, Eli (1715) | Lost 0-2 | -121387 |
| 2sealed | 307 | Suso, Anthony (1481) | Lost 0-2 | -161371 |
| 3sealed | 554 | Perez-Charneco, Andres (1464) | Lost 0-2 | -171354 |
| 4sealed | 549 | Alexander, Andrew (1448) | Won 2-0 | +201374 |
| 5sealed | 465 | Petros, Steve (1466) | Lost 0-2 | -161358 |
| top | average opponent: 1515record: 1-4 | new rating: 1358 | ||
| Grand Prix Pittsburgh 2016 (SOI standard) | starting rating: 1448 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 326 | Tummolillo, Alessio (1696) | Lost 0-2 | -141434 |
| 2standard | 327 | Higgins, Bob (1425) | Lost 0-2 | -181416 |
| 3standard | 643 | Smith, Austin (1404) | Lost 0-2 | -181398 |
| 4standard | 637 | Thomas, Kameron (1445) | Won 2-1 | +191417 |
| 5standard | 565 | Sajour, Jose (1450) | Won 2-1 | +181435 |
| 6standard | 519 | Gedekoh, Shane (1399) | Draw 1-1 | 01435 |
| 7standard | 476 | Snowden, Corey (1449) | Lost 0-2 | -181417 |
| 8standard | 443 | Otto, Rachel (1434) | Lost 0-2 | -181399 |
| top | average opponent: 1463record: 2-5-1 | new rating: 1399 | ||
| Grand Prix Pittsburgh 2015 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 296 | Cain, Nathan (1500) | Won 2-0 | +181518 |
| 2modern | 482 | Pelletier, Olivier (1572) | Lost 0-2 | -171501 |
| 3modern | 899 | Worsham, Martin (1563) | Lost 1-2 | -171484 |
| 4modern | 959 | Rivenburg, Tim (1504) | Lost 1-2 | -181466 |
| 5modern | 1096 | Slease, Jacob (1444) | Lost 1-2 | -181448 |
| 6modern | 943 | Lucchesi, Nick (1446) | Won 2-0 | +181466 |
| 7modern | 735 | Payne, Sebastian (1463) | Lost 0-2 | -181448 |
| 8modern | 618 | Prothero, Kevin A (1444) | Lost 0-2 | -181430 |
| 9modern | 496 | Yocco, Frank (1427) | Won 2-1 | +181448 |
| top | average opponent: 1485record: 3-6 | new rating: 1448 | ||