Krol-Muma, Jakub
Current rating: 1412
Record: 6-12
| Grand Prix Atlantic City 2013 (RTR standard) | starting rating: 1427 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 84 | Timlin, Timothy (1512) | Lost 1-2 | -161411 |
| 2standard | 443 | Beradi, Brett (1482) | Won 2-1 | +191430 |
| 3standard | 559 | Cutler, Tim (1321) | Lost 1-2 | -201410 |
| 4standard | 690 | Irizarry, Luke (1543) | Won 2-0 | +201430 |
| 5standard | 561 | Kelly, Frank (1406) | Lost 1-2 | -181412 |
| top | average opponent: 1453record: 2-3 | new rating: 1412 | ||
| Grand Prix Philadelphia 2012 (RTR limited) | starting rating: 1426 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 139 | Forrest, Brad (1563) | Won 2-0 | +211447 |
| 2sealed | 85 | Meyerson, Jeffrey (1565) | Lost 0-2 | -161431 |
| 3sealed | 195 | Zembruski, Matthew A (1643) | Lost 1-2 | -141417 |
| 4sealed | 365 | Bevenour, Matthew (1502) | Won 2-1 | +191436 |
| 5sealed | 46 | Maurmeier, Ralph (1565) | Lost 0-2 | -151421 |
| 6sealed | 296 | Wallace, Kevin (1569) | Won 2-0 | +201441 |
| 7sealed | 219 | Mantey, Tyler (1642) | Lost 1-2 | -141427 |
| top | average opponent: 1578record: 3-4 | new rating: 1427 | ||
| Grand Prix Boston-Worcester 2012 (M13 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 167 | Malkoun, Robert (1500) | Lost 0-2 | -181482 |
| 2sealed | 567 | Canieso, Robert (1482) | Lost 1-2 | -181464 |
| 3sealed | 697 | Duchano, Daniel (1464) | Won 2-1 | +181482 |
| 4sealed | 636 | Reed, David (1483) | Lost 1-2 | -181464 |
| 5sealed | 718 | Thomas G., (1464) | Lost 0-2 | -181446 |
| 6sealed | 621 | Lafreniere, Michelle (1362) | Lost 0-2 | -201426 |
| top | average opponent: 1459record: 1-5 | new rating: 1426 | ||