Kiewel, Maciej
Current rating: 1425
| Grand Prix Warsaw 2018 (GRN limited) | starting rating: 1441 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 146 | Synakh, Kostyantyn (1553) | Won 2-0 | +201461 |
| 2sealed | 246 | Thidemann, Anders (1613) | Won 2-0 | +201481 |
| 3sealed | 164 | Maiocco, Marco (1739) | Lost 0-2 | -131468 |
| 4sealed | 353 | Schwarze, Marius (1769) | Lost 0-2 | -131455 |
| 5sealed | 515 | Dumke, Fabian (1739) | Lost 1-2 | -131442 |
| 6sealed | 574 | Rau, Stefan (1474) | Lost 0-2 | -171425 |
| 7sealed | 561 | Pulokas, Mantas (1487) | Lost 1-2 | -171408 |
| 8sealed | 506 | Vainio, Aki (1366) | Won 2-0 | +171425 |
| top | average opponent: 1592record: 3-5 | new rating: 1425 | ||
| Grand Prix Warsaw 2017 (XLN standard) | starting rating: 1456 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 13 | Volostrigov, Bogdan (1653) | Draw 1-1 | +31459 |
| 2standard | 295 | Rozynek, Pawel (1485) | Lost 0-2 | -171442 |
| 3standard | 532 | Gadeyne, Kenneth (1269) | Won 2-1 | +151457 |
| 4standard | 437 | Reinhardt, Fabio (1628) | Lost 1-2 | -151442 |
| 5standard | 498 | Jampula, Maciej (1420) | Lost 0-1 | -191423 |
| 6standard | 514 | Superson, Dawid (1541) | Lost 0-2 | -151408 |
| 7standard | 468 | Ros Martinez, Carles (1475) | Won 2-1 | +191427 |
| 8standard | 413 | Dean, Martin (1199) | Won 2-0 | +141441 |
| 9standard | 346 | De Oliveira Tavares, Tiago (1442) | Draw 1-1 | 01441 |
| top | average opponent: 1457record: 3-4-2 | new rating: 1441 | ||
| Grand Prix Warsaw 2016 (KLD standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 99 | Zaccarelli, Raffaele (1583) | Lost 0-2 | -161484 |
| 2standard | 342 | Cicolella, Andrea (1502) | Lost 1-2 | -181466 |
| 3standard | 511 | Lewinski, Maksymilian (1464) | Lost 0-2 | -181448 |
| 4standard | 523 | Chmielewski, Damian (1447) | Won 2-1 | +181466 |
| 5standard | 494 | Anguiano, Inigo (1464) | Won 2-0 | +181484 |
| 6standard | 401 | Fausch, Torben (1766) | Won 2-0 | +231507 |
| 7standard | 351 | Berger, Maximilien (1652) | Lost 0-2 | -161491 |
| 8standard | 369 | Karpov, Pavel (1557) | Lost 0-2 | -161475 |
| 9standard | 361 | Martin, Toni (1429) | Lost 1-2 | -191456 |
| top | average opponent: 1540record: 3-6 | new rating: 1456 | ||