Penton, Karl
Current rating: 1413
Record: 5-10
| Grand Prix Brisbane 2019 (ELD standard) | starting rating: 1447 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 40 | Wise, Robert (1500) | Lost 1-2 | -171430 |
| 2standard | 126 | Demyati, Samir (1437) | Lost 0-2 | -181412 |
| 3standard | 189 | Blow, Peter (1364) | Won 2-0 | +171429 |
| 4standard | 153 | Taubman, Samuel (1490) | Lost 0-2 | -161413 |
| top | average opponent: 1448record: 1-3 | new rating: 1413 | ||
| Grand Prix Sydney 2015 (BFZ limited) | starting rating: 1482 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 203 | Yee, William (1518) | Lost 0-2 | -181464 |
| 3sealed | 250 | Saide, Brad (1521) | Lost 0-2 | -171447 |
| top | average opponent: 1519record: 0-2 | new rating: 1447 | ||
| Grand Prix Sydney 2014 (M15 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 243 | Hur, Min (1541) | Won 2-0 | +191519 |
| 2sealed | 68 | Johnson, Paul M (1502) | Lost 1-2 | -181501 |
| 3sealed | 163 | Lewis, David [AUS] (1448) | Lost 1-2 | -191482 |
| top | average opponent: 1497record: 1-2 | new rating: 1482 | ||
| Grand Prix Melbourne 2014 (BNG standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 322 | Zeng, Ben (1411) | Lost 0-2 | -201480 |
| 2standard | 366 | Missen, Bradley (1485) | Won 2-0 | +181498 |
| 3standard | 272 | Shanley, Glenn (1523) | Lost 1-2 | -171481 |
| 4standard | 313 | Bagnall, Luke (1546) | Won 2-0 | +191500 |
| 5standard | 237 | Barker, Stuart (1499) | Won 2-0 | +181518 |
| 6standard | 170 | Kindler, Sean (1517) | Lost 0-2 | -181500 |
| top | average opponent: 1497record: 3-3 | new rating: 1500 | ||