Losh, Jonathan
Current rating: 1535
| Grand Prix Oakland 2013 (M14 limited) | starting rating: 1520 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 524 | Carnes, Nick (1500) | Won 2-1 | +171537 |
| 2sealed | 342 | Woo, Justin (1518) | Won 2-1 | +181555 |
| 3sealed | 52 | Wong, Alan 029 (1518) | Won 2-1 | +171572 |
| 4sealed | 361 | Long, Nate (1570) | Won 2-1 | +181590 |
| 5sealed | 58 | Baxter, Gavin (1572) | Lost 0-2 | -181572 |
| 6sealed | 55 | Mason, Greg (1554) | Lost 0-2 | -181554 |
| 7sealed | 187 | G094, Greyson (1528) | Lost 0-2 | -191535 |
| top | average opponent: 1537record: 4-3 | new rating: 1535 | ||
| Grand Prix Las Vegas 2013 (MMA limited) | starting rating: 1484 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 766 | Pinion, Bill (1418) | Lost 1-2 | -201464 |
| 2sealed | 816 | Misch, Wendell (1502) | Draw 1-1 | +11465 |
| 3sealed | 906 | McCoy, Ray (1482) | Won 2-0 | +181483 |
| 4sealed | 844 | Jones, Dylan (1506) | Won 2-0 | +191502 |
| 5sealed | 658 | Vollenweider, Miles (1488) | Lost 0-2 | -181484 |
| 6sealed | 621 | Verderese, Leanna (1478) | Won 2-1 | +171501 |
| 7sealed | 452 | Tierney, Seth (1512) | Won 2-0 | +191520 |
| top | average opponent: 1484record: 4-2-1 | new rating: 1520 | ||
| Grand Prix Boston 2009 (M10 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 567 | Umile, Zeke (1590) | Lost 0-2 | -161484 |
| 2sealed | 685 | Burbank, Richard (1482) | Draw 1-1 | 01484 |
| 3sealed | 685 | Flore, Marc C (1482) | Won 2-0 | +181502 |
| 4sealed | 630 | Grant, Tim (1500) | Lost 1-2 | -181484 |
| top | average opponent: 1513record: 1-2-1 | new rating: 1484 | ||