Simpson, Jonathan
Current rating: 1509
Record: 11-11
| Grand Prix Louisville 2017 (legacy) | starting rating: 1494 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 662 | Ianni, Matthew (1512) | Lost 1-2 | -181476 |
| 2legacy | 728 | Hill, James (1241) | Won 2-1 | +141490 |
| 3legacy | 790 | Auxier, Bryan (1459) | Lost 1-2 | -191471 |
| 4legacy | 845 | Stepka, Benjamin (1372) | Lost 1-2 | -201451 |
| 5legacy | 969 | Lam, David (1418) | Won 2-0 | +181469 |
| 6legacy | 807 | Gray, Jake (1634) | Won 2-1 | +211490 |
| 7legacy | 728 | Lauerman, James (1537) | Won 2-0 | +191509 |
| 8legacy | 598 | Eiskamp, Devin (1524) | Won 2-0 | +181527 |
| 9legacy | 586 | Young, Matt (1522) | Lost 1-2 | -181509 |
| top | average opponent: 1469record: 5-4 | new rating: 1509 | ||
| Grand Prix Louisville 2013 (THS standard) | starting rating: 1430 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 297 | Cubenas, Chris (1524) | Won 2-0 | +201450 |
| 2standard | 341 | Bohrman, Joe (1518) | Won 2-1 | +191469 |
| 3standard | 135 | Herrell, Justin (1517) | Lost 0-2 | -171452 |
| 4standard | 335 | Gower, Daniel (1518) | Won 2-0 | +191471 |
| 5standard | 247 | Curie, Jeremy (1622) | Lost 0-2 | -151456 |
| 6standard | 266 | Brewer, Paul (1539) | Won 2-0 | +191475 |
| 7standard | 202 | Murphy, Austin (1538) | Won 2-0 | +191494 |
| 8standard | 185 | Woolum, Matthew (1551) | Lost 1-2 | -171477 |
| 9standard | 260 | Brooks, John (1377) | Won 2-1 | +171494 |
| top | average opponent: 1523record: 6-3 | new rating: 1494 | ||
| Grand Prix Charlotte 2013 (GTC limited) | starting rating: 1482 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 1109 | Rout, Heather D (1500) | Lost 0-2 | -181464 |
| 2sealed | 688 | Cornett, Andrew (1551) | Lost 1-2 | -161448 |
| 3sealed | 1111 | Xu, Roy (1446) | Lost 0-2 | -181430 |
| top | average opponent: 1499record: 0-3 | new rating: 1430 | ||
| Grand Prix Boston 2009 (M10 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 572 | Zarmakupis, Adam J (1500) | Lost 0-2 | -181482 |
| top | record: 0-1 | new rating: 1482 | ||