Berchtold, Martin
Current rating: 1460
Record: 4-7-1
| Grand Prix Prague 2014 (modern) | starting rating: 1435 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 71 | Vollmann, Benjamin (1480) | Lost 0-2 | -171418 |
| 2modern | 481 | Muller, Christoph (1481) | Won 2-0 | +191437 |
| 3modern | 385 | Jung, Carsten (1496) | Won 2-1 | +191456 |
| 4modern | 425 | Flossmann, Tom (1518) | Draw 1-1 | +11457 |
| 5modern | 332 | Zahl, Benjamin (1497) | Won 2-0 | +191476 |
| 6modern | 394 | Marsicek, Josef (1578) | Lost 0-2 | -161460 |
| average opponent: 1508record: 3-2-1 | new rating: 1460 | |||
| Grand Prix Lyon 2012 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 4modern | 585 | Skorolupov, Nikolai (1551) | Lost 0-2 | -171483 |
| 5modern | 614 | Van Hoof, Glenn (1592) | Lost 0-2 | -161467 |
| 6modern | 626 | Merlet, Cedric (1519) | Lost 0-2 | -171450 |
| 7modern | 668 | Perotti, Efrem (1541) | Lost 0-2 | -161434 |
| 8modern | 675 | Dupuis, Clement (1478) | Won 2-1 | +181452 |
| 9modern | 639 | Morand, Thomas (1480) | Lost 0-2 | -171435 |
| average opponent: 1527record: 1-5 | new rating: 1435 | |||