Kosmidis, Matthaios
Current rating: 1524
Record: 9-8
| Grand Prix Brussels 2020 (pioneer) | starting rating: 1526 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 146 | Dal Pont, Thomas (1481) | Won 2-0 | +171543 |
| 2pioneer | 325 | Hektor, Marco (1563) | Lost 0-2 | -181525 |
| 3pioneer | 635 | Battistuzzi, Nicolo (1608) | Won 2-1 | +201545 |
| 4pioneer | 229 | Errico, Lancelot (1476) | Lost 0-2 | -191526 |
| 5pioneer | 501 | Baglin, Arnaud (1798) | Lost 0-2 | -141512 |
| 6pioneer | 540 | Chierzi, Fabrizio (1308) | Won 2-0 | +151527 |
| 7pioneer | 102 | Bonet, Sebastian (1525) | Won 2-1 | +181545 |
| 8pioneer | 285 | Daunis, Aurore (1379) | Lost 1-2 | -211524 |
| average opponent: 1517record: 4-4 | new rating: 1524 | |||
| Grand Prix Madrid 2016 (KLD standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 59 | Schmittlin, Baptiste (1500) | Won 2-0 | +181518 |
| 2standard | 235 | Lazarides, Nicolas (1573) | Won 2-0 | +191537 |
| 3standard | 251 | Ingallinera, Daniele (1660) | Lost 0-2 | -161521 |
| 4standard | 278 | de la Fuente, Raul (1576) | Won 2-1 | +191540 |
| 5standard | 305 | Campo Diez, Javier (1513) | Lost 0-2 | -181522 |
| 6standard | 440 | Mendoza Euba, Ignacio (1637) | Won 2-1 | +201542 |
| 7standard | 205 | Calamonte Morales, Juan Jose (1492) | Won 2-1 | +171559 |
| 8standard | 177 | Perez Silanes, Asier (1444) | Lost 1-2 | -201539 |
| 9standard | 195 | Boucek, Jaroslav (1818) | Lost 0-2 | -131526 |
| average opponent: 1579record: 5-4 | new rating: 1526 | |||