Porwol, Kathrin Nicole
Current rating: 1406
| Grand Prix London 2018 (RIX limited) | starting rating: 1391 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 96 | Manktelow, Benjamin (1464) | Won 2-1 | +191410 |
| 2sealed | 309 | Hindley, Jack (1501) | Won 2-1 | +201430 |
| 3sealed | 299 | Ursell, Alexander (1537) | Lost 0-2 | -161414 |
| 4sealed | 286 | Glanville, Tom [ENG] (1497) | Lost 0-2 | -171397 |
| 5sealed | 639 | Beal, Steven (1469) | Won 2-0 | +201417 |
| 6sealed | 409 | Sele, Yves (1881) | Lost 0-2 | -111406 |
| top | average opponent: 1558record: 3-3 | new rating: 1406 | ||
| Grand Prix Warsaw 2017 (XLN standard) | starting rating: 1460 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 98 | Aviv, Dor (1500) | Lost 0-2 | -181442 |
| 2standard | 374 | Olas, Kajetan (1424) | Lost 1-2 | -181424 |
| 3standard | 582 | Lis, Michal (1522) | Lost 0-2 | -161408 |
| 4standard | 590 | Zamfir, Tudor-Ioan (1470) | Lost 0-2 | -171391 |
| top | average opponent: 1479record: 0-4 | new rating: 1391 | ||
| Grand Prix Turin 2017 (HOU standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 29 | Nucera, Antonino (1334) | Lost 0-2 | -211479 |
| 2standard | 275 | Zhi, Youshi (1464) | Lost 1-2 | -181461 |
| 3standard | 398 | Chiado, Martino (1469) | Lost 1-2 | -181443 |
| 4standard | 441 | Piastra, Luca (1441) | Won 2-0 | +181461 |
| 5standard | 412 | Balboni, Alessandro (1503) | Won 2-0 | +191480 |
| 6standard | 316 | Sharif, Omar (1363) | Lost 0-2 | -201460 |
| top | average opponent: 1429record: 2-4 | new rating: 1460 | ||