Grzonkowski, Tomasz
Current rating: 1468
Record: 7-10-1
| Grand Prix Warsaw 2017 (XLN standard) | starting rating: 1425 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 217 | Pietrzak, Michael (1500) | Won 2-0 | +201445 |
| 2standard | 176 | Oliviero, Marco (1563) | Lost 0-2 | -161429 |
| 3standard | 512 | Kwasniewski, Artur (1469) | Won 2-1 | +191448 |
| 4standard | 225 | Devizyte, Egle (1632) | Won 2-1 | +211469 |
| 5standard | 91 | Meulders, Bram (1912) | Lost 1-2 | -101459 |
| 6standard | 378 | Metsa, Roope (1649) | Won 2-0 | +211480 |
| 7standard | 166 | Larsen, Daniel (1497) | Won 2-1 | +181498 |
| 8standard | 169 | Belasta, Matej (1785) | Lost 1-2 | -131485 |
| 9standard | 178 | Righini, Fabio (1540) | Lost 0-2 | -171468 |
| average opponent: 1616record: 5-4 | new rating: 1468 | |||
| Grand Prix Warsaw 2016 (KLD standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 250 | Sonzogni, Andrea (1475) | Lost 0-2 | -181482 |
| 2standard | 362 | Kubiczek, Miroslav (1481) | Won 2-0 | +181500 |
| 3standard | 329 | Larsen, Daniel (1451) | Lost 0-2 | -191481 |
| 4standard | 453 | Mieczkowski, Jaroslaw (1461) | Lost 1-2 | -191462 |
| 5standard | 467 | Kopanski, Wojciech (1452) | Lost 0-2 | -181444 |
| 6standard | 494 | Rudzki, Bartlomiej (1447) | Draw 0-0 | 01444 |
| 7standard | 467 | Rozenberg, Oleksandr (1450) | Lost 0-2 | -181426 |
| 8standard | 430 | Zimak, David (1427) | Lost 0-2 | -181408 |
| 9standard | 393 | Siedlecka, Marta (1365) | Won 2-1 | +171425 |
| average opponent: 1445record: 2-6-1 | new rating: 1425 | |||