Jekot, Marcin
Current rating: 1439
Record: 3-7-3
| Grand Prix Warsaw 2018 (GRN limited) | starting rating: 1444 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 417 | Schalin, Ville (1547) | Won 2-1 | +201464 |
| 2sealed | 181 | Petrak, Martin (1689) | Won 2-0 | +221486 |
| 3sealed | 97 | Szadurski, Mateusz (1548) | Lost 1-2 | -171469 |
| 4sealed | 581 | Legros, Pascal (1387) | Won 2-0 | +171486 |
| 5sealed | 208 | Della Valle, Pietro (1627) | Lost 1-2 | -161470 |
| 6sealed | 437 | Vavra, Ondrej (1424) | Lost 1-2 | -181452 |
| 7sealed | 431 | Leroy, Yannick (1733) | Lost 0-2 | -131439 |
| average opponent: 1565record: 3-4 | new rating: 1439 | |||
| Grand Prix Krakow 2007 (LRW standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 501 | Lhomme, Steeve (1350) | Draw 1-1 | -31497 |
| 2standard | 608 | Marucha, Mateusz (1480) | Lost 1-2 | -181479 |
| 3standard | 654 | Kempf, Bastian (1430) | Lost 0-2 | -191460 |
| 4standard | 696 | Drabik, Iwo (1466) | Draw 1-1 | 01460 |
| 5standard | 696 | Zalesky, David (1449) | Draw 1-1 | 01460 |
| 6standard | 673 | Lebeda, Jiri (1590) | Lost 0-2 | -161444 |
| average opponent: 1461record: 0-3-3 | new rating: 1444 | |||