Pennington, Johnathan
Current rating: 1516
Record: 12-12
| Grand Prix Charlotte 2015 (modern) | starting rating: 1513 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 1492 | Tolar, Sandy (1483) | Won 2-1 | +171530 |
| 2modern | 1360 | Dills, Adam (1537) | Lost 0-2 | -181512 |
| 3modern | 1567 | Hall, William (1611) | Won 2-1 | +201532 |
| 4modern | 1429 | Paul, Corey (1640) | Lost 1-2 | -161516 |
| top | average opponent: 1568record: 2-2 | new rating: 1516 | ||
| Grand Prix New Jersey 2014 (legacy) | starting rating: 1571 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 867 | Simon, Gregory (1534) | Lost 1-2 | -181553 |
| 2legacy | 1161 | Wile, Aaron (1482) | Lost 0-2 | -201533 |
| 3legacy | 1298 | Constantinou, Evaggelos (1396) | Lost 1-2 | -201513 |
| top | average opponent: 1470record: 0-3 | new rating: 1513 | ||
| Grand Prix Richmond 2014 (modern) | starting rating: 1464 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 359 | Zhang, Ray (1500) | Won 2-0 | +191483 |
| 2modern | 330 | Wetzel, Harry (1518) | Won 2-0 | +181501 |
| 3modern | 183 | Seiber, Alex (1538) | Won 2-1 | +191520 |
| 4modern | 65 | Harvie, Donovan (1638) | Won 2-1 | +201540 |
| 5modern | 5 | Hernandez, Mario (1542) | Won 2-0 | +181558 |
| 6modern | 1 | Ashworth, Jon (1547) | Won 1-0 | +181576 |
| 7modern | 2 | Fogle, Jack (1973) | Lost 0-2 | -111565 |
| 8modern | 16 | Long, Robert (1553) | Won 2-1 | +181583 |
| 9modern | 24 | Roberts, Joshua [USA] (1626) | Lost 0-2 | -181565 |
| 10modern | 77 | Wilburn, Aaron (1605) | Won 2-0 | +191584 |
| 11modern | 106 | Kelahan, Seamus (1759) | Won 2-0 | +211605 |
| 12modern | 58 | Sewall, Zachary (1596) | Lost 0-2 | -181587 |
| 13modern | 58 | Hsu, Jeremy (1709) | Lost 1-2 | -161571 |
| top | average opponent: 1623record: 9-4 | new rating: 1571 | ||
| Grand Prix Charlotte 2013 (GTC limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 396 | Bullard, Sam (1500) | Lost 0-2 | -181482 |
| 2sealed | 516 | Kasperek, Krzysztof A (1482) | Won 2-0 | +181500 |
| 3sealed | 231 | Fent, Andy (1500) | Lost 1-2 | -181482 |
| 4sealed | 437 | Joreid, Grant (1482) | Lost 0-2 | -181464 |
| top | average opponent: 1491record: 1-3 | new rating: 1464 | ||