Josefson, Josh
Current rating: 1494
| Grand Prix Sacramento 2014 (THS limited) | starting rating: 1513 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 1041 | Trale, Mitch (1482) | Won 2-0 | +181531 |
| 2sealed | 1173 | Fyfe, Max (1533) | Won 2-1 | +181549 |
| 3sealed | 1028 | Fang, Zhengyang (1473) | Lost 0-2 | -201529 |
| 4sealed | 1104 | Chandler, Angela (1488) | Won 2-0 | +181547 |
| 5sealed | 1104 | Tuvey, Stuart (1538) | Lost 0-2 | -191528 |
| 6sealed | 1099 | Davalos, Dante (1602) | Lost 0-2 | -161512 |
| 7sealed | 1142 | Mascorro, Fernando (1519) | Lost 0-2 | -181494 |
| top | average opponent: 1520record: 3-4 | new rating: 1494 | ||
| Grand Prix Anaheim 2012 (Innistrad block) | starting rating: 1555 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 65 | Siazon, Gerard (1474) | Lost 0-2 | -191536 |
| 2block | 249 | Foggy, Andrew (1482) | Lost 0-2 | -191517 |
| 3block | 390 | Smith, Dean (1464) | Won 2-1 | +171534 |
| 4block | 323 | Henry, Elizabeth (1483) | Won 2-0 | +171551 |
| 5block | 294 | Burnham, Jefferson (1498) | Lost 1-2 | -191532 |
| 6block | 329 | Andres, Christopher (1481) | Lost 1-2 | -191513 |
| top | average opponent: 1480record: 2-4 | new rating: 1513 | ||
| Grand Prix San Diego 2011 (ISD limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 123 | Haverkos, Axel (1500) | Lost 1-2 | -181482 |
| 2sealed | 149 | Gerlock, Alex (1439) | Won 2-0 | +171499 |
| 3sealed | 135 | Varasteanu, Madalina (1499) | Won 2-0 | +181517 |
| 4sealed | 108 | Wang, Xuan-ji (1676) | Lost 1-2 | -151502 |
| 5sealed | 198 | Hupke, Casey R (1501) | Won 2-0 | +181520 |
| 6sealed | 102 | Smith, Russell (1499) | Won 2-1 | +181538 |
| 7sealed | 69 | Calvo, Fernando (1540) | Won 2-1 | +181556 |
| 8sealed | 88 | Barbuto, Brandon C (1538) | Lost 1-2 | -191537 |
| 9sealed | 70 | Nguyen, Kevin C (1539) | Won 2-0 | +181555 |
| top | average opponent: 1526record: 6-3 | new rating: 1555 | ||