Macas, Jan
Current rating: 1571
| Grand Prix Strasbourg 2014 (KTK limited) | starting rating: 1592 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 272 | Sauvage, Christophe (1516) | Lost 1-2 | -201572 |
| 2sealed | 295 | Sommer, Raphael (1482) | Lost 0-2 | -191553 |
| 3sealed | 441 | Clement, Kevin (1469) | Won 2-0 | +161569 |
| 4sealed | 360 | Wagner, Sebastian (1482) | Won 2-1 | +171586 |
| 5sealed | 271 | Zimmermann, Martin (1775) | Lost 1-2 | -151571 |
| top | average opponent: 1545record: 2-3 | new rating: 1571 | ||
| Grand Prix Paris 2011 (MBS limited) | starting rating: 1537 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 1110 | Manach, Vincent (1507) | Won 2-0 | +171554 |
| 2sealed | 1027 | Choi, Standish (1633) | Lost 1-2 | -161538 |
| 3sealed | 1177 | Bertaud, Julien (1672) | Won 2-0 | +201558 |
| 4sealed | 1160 | Knocinski, Przemek (1480) | Won 2-1 | +171575 |
| 5sealed | 1137 | Klimes, Tomas (1790) | Lost 0-2 | -151560 |
| 6sealed | 1141 | Le Gad, Yann (1521) | Won 2-0 | +181578 |
| 7sealed | 1108 | Cunha, Miguel (1508) | Lost 1-2 | -201558 |
| 8sealed | 1125 | Loor, Steve (1407) | Won 2-1 | +161574 |
| 9sealed | 1072 | Vandenborre, Wim (1579) | Won 2-1 | +181592 |
| top | average opponent: 1566record: 6-3 | new rating: 1592 | ||
| Grand Prix Madrid 2010 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 292 | Diaz, Ricardo [ESP] (1667) | Lost 1-2 | -151485 |
| 2legacy | 335 | Gonzalez, Arturo (1482) | Lost 0-2 | -181467 |
| 3legacy | 420 | Accart, Jean-Mary (1434) | Lost 0-2 | -191448 |
| 4legacy | 496 | Mendez Carmona, David (1448) | Won 2-0 | +181466 |
| 5legacy | 474 | Gallego Delgado, Roberto (1464) | Won 2-0 | +181484 |
| 6legacy | 365 | Alonso, Igor (1482) | Won 2-0 | +181502 |
| 7legacy | 255 | Poulain, Samuel (1500) | Draw 1-1 | 01502 |
| 8legacy | 235 | Martinez Diosdado, Gonzalo (1502) | Won 2-0 | +181520 |
| 9legacy | 174 | Erler, Manuel (1430) | Won 2-0 | +171537 |
| top | average opponent: 1490record: 5-3-1 | new rating: 1537 | ||