Gwiasda, Marc
Current rating: 1424
| Grand Prix Brussels 2015 (BFZ standard) | starting rating: 1421 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 274 | Delhaye, Gilles (1496) | Draw 0-0 | +21423 |
| 2standard | 459 | Ryba, Martin (1517) | Lost 0-0 | -171406 |
| 3standard | 816 | Ribiere, Jim (1394) | Draw 1-1 | 01406 |
| 4standard | 868 | Neves, Pedro (1394) | Won 2-0 | +181424 |
| 5standard | 733 | Sondergaard, Andreas (1528) | Draw 1-1 | +21426 |
| 6standard | 665 | Bourgeois, Herve (1303) | Lost 1-2 | -201406 |
| 7standard | 620 | Van De Kerkhoven, Olivier (1448) | Won 2-0 | +181424 |
| top | average opponent: 1440record: 2-2-3 | new rating: 1424 | ||
| Grand Prix Utrecht 2015 (MM2 limited) | starting rating: 1490 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 315 | Zimmermann, Steffen (1500) | Lost 0-2 | -171473 |
| 2sealed | 549 | Van Dormolen - Siegel, (1483) | Lost 1-2 | -181455 |
| 3sealed | 678 | Klocker, Mario (1654) | Lost 1-2 | -151440 |
| 4sealed | 633 | Bernstein, Rebekka (1385) | Lost 1-2 | -191421 |
| top | average opponent: 1506record: 0-4 | new rating: 1421 | ||
| Grand Prix Utrecht 2014 (M15 standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 156 | Van Durme, Hadrien (1500) | Won 2-0 | +181518 |
| 2standard | 16 | Schmitz, Daniel (1468) | Won 2-1 | +171535 |
| 3standard | 81 | Nolte, Dennis (1718) | Lost 0-1 | -151520 |
| 4standard | 286 | Mattens, Micky (1535) | Won 2-0 | +191539 |
| 5standard | 172 | Launois, Loic (1546) | Lost 0-2 | -181521 |
| 6standard | 413 | Doring, Patrick (1515) | Draw 1-1 | 01521 |
| 7standard | 311 | Jaworowski, Andrzej (1626) | Lost 0-2 | -161505 |
| 8standard | 344 | Vieren, Peter (1756) | Draw 1-1 | +41509 |
| 9standard | 331 | van der End, Sander (1475) | Lost 0-2 | -191490 |
| top | average opponent: 1571record: 3-4-2 | new rating: 1490 | ||