Josephson, John
Current rating: 1432
| Grand Prix Hartford 2018 (modern) | starting rating: 1445 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 2 | Hollien, Kjell (1500) | Won 2-0 | +191464 |
| 2modern | 234 | Wildes, Khrystian (1547) | Lost 1-2 | -161448 |
| 3modern | 449 | Bauer, Andrew (1481) | Won 2-1 | +181466 |
| 4modern | 571 | Rich, Dashiell (1519) | Lost 1-2 | -171449 |
| 5modern | 442 | Fassino, Joe (1466) | Lost 0-2 | -171432 |
| top | average opponent: 1502record: 2-3 | new rating: 1432 | ||
| Grand Prix New Jersey 2014 (legacy) | starting rating: 1482 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 1740 | Hauser, Matthew (1500) | Won 2-0 | +191501 |
| 2legacy | 1709 | Ehrler, Matthias (1411) | Lost 1-2 | -201481 |
| 3legacy | 1731 | Graff, Joseph (1521) | Lost 1-2 | -171464 |
| 4legacy | 1926 | Chang, Charlie (1433) | Lost 1-2 | -191445 |
| top | average opponent: 1466record: 1-3 | new rating: 1445 | ||
| Grand Prix Boston-Worcester 2014 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 39 | Cocci, Kevin (1500) | Won 2-0 | +181518 |
| 2modern | 208 | Hathaway, Andrew (1518) | Won 2-0 | +181536 |
| 3modern | 77 | Allward, David (1472) | Lost 0-2 | -191517 |
| 4modern | 259 | Meier, Dave (1594) | Lost 1-2 | -171500 |
| 5modern | 309 | Finch, Hunter (1505) | Lost 1-2 | -181482 |
| top | average opponent: 1518record: 2-3 | new rating: 1482 | ||