Jestadt, Martin
Current rating: 1417
| Grand Prix Prague 2018 (modern) | starting rating: 1430 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 455 | Makogon, Andrew (1500) | Lost 1-2 | -171413 |
| 2modern | 765 | Giroux, Bastien (1497) | Won 2-1 | +201433 |
| 3modern | 458 | Alfiniti, Nicolo (1546) | Lost 0-2 | -161417 |
| top | average opponent: 1515record: 1-2 | new rating: 1417 | ||
| Grand Prix Birmingham 2017 (modern) | starting rating: 1499 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 12 | Burns, Matthew (1537) | Lost 1-2 | -171482 |
| 2modern | 638 | Boye Petersen, Niels Christian (1482) | Lost 0-0 | -181464 |
| 3modern | 816 | Evans, Alex [ENG] (1468) | Won 2-1 | +181482 |
| 4modern | 586 | Lee, Jordan [ENG] (1484) | Lost 1-2 | -181464 |
| 5modern | 709 | Hill, Simon (1560) | Lost 0-2 | -161448 |
| 6modern | 722 | Sanchez Martinez, Alberto (1445) | Lost 0-2 | -181430 |
| top | average opponent: 1496record: 1-5 | new rating: 1430 | ||
| Grand Prix Lille 2016 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 430 | Launay, Remi (1436) | Won 2-1 | +171517 |
| 2modern | 97 | Yakoub, Adrien (1518) | Won 2-0 | +181535 |
| 3modern | 312 | Behavka, Ondrej (1537) | Won 2-1 | +181553 |
| 4modern | 110 | Biesmans, Wouter (1608) | Lost 1-2 | -171536 |
| 5modern | 120 | Grcar, Boris (1572) | Lost 1-2 | -171519 |
| 6modern | 321 | Dick, Christian (1520) | Won 2-0 | +181537 |
| 7modern | 327 | Quievreux, Antoine (1492) | Lost 0-2 | -191518 |
| 8modern | 486 | Viard, Baptiste (1497) | Lost 1-2 | -191499 |
| top | average opponent: 1523record: 4-4 | new rating: 1499 | ||