Jupson, John
Current rating: 1412
Record: 4-9
| Grand Prix Tampa Bay 2019 (modern) | starting rating: 1479 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 272 | Caldwell, Samuel (1500) | Won 2-1 | +181497 |
| 2modern | 146 | Wear, Michael (1505) | Lost 0-2 | -171480 |
| 3modern | 336 | West, Caitlyn (1455) | Won 2-0 | +171497 |
| 4modern | 288 | Strunk, Michael (1615) | Lost 1-2 | -161481 |
| 5modern | 238 | Budkey, Thomas (1499) | Lost 0-2 | -171464 |
| 6modern | 288 | Sipe, Eric (1581) | Lost 1-2 | -161448 |
| 7modern | 252 | Heath, Troy (1463) | Lost 1-2 | -181430 |
| 8modern | 222 | Edmondson, Jeremy (1420) | Lost 0-2 | -181412 |
| average opponent: 1505record: 2-6 | new rating: 1412 | |||
| Grand Prix Orlando 2014 (KTK limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 403 | Summerville, Daniel (1500) | Lost 1-2 | -181482 |
| 2sealed | 1194 | Gibson, Michael (1548) | Won 2-0 | +191501 |
| 3sealed | 428 | Oates, Carl (1500) | Won 2-1 | +181519 |
| 4sealed | 241 | Gutierrez, Juan Antonio (1410) | Lost 0-0 | -201499 |
| 5sealed | 320 | Mandell, Joshua (1377) | Lost 0-2 | -201479 |
| average opponent: 1467record: 2-3 | new rating: 1479 | |||