Grundstrom, Johan
Current rating: 1374
Record: 15-23
| Grand Prix Stockholm 2016 (EMN limited) | starting rating: 1424 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 403 | Kallman, Peter (1500) | Lost 1-2 | -171407 |
| 2sealed | 415 | Kristoffersson, Anders (1482) | Lost 0-2 | -161391 |
| 3sealed | 532 | Szabo, Daniel (1463) | Lost 0-2 | -171374 |
| top | average opponent: 1482record: 0-3 | new rating: 1374 | ||
| Grand Prix Prague 2016 (legacy) | starting rating: 1515 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 11 | Dillen, Mathias (1450) | Lost 0-2 | -191496 |
| 2legacy | 484 | Hoelker, David (1535) | Lost 1-2 | -181478 |
| 3legacy | 631 | Tichy, Marek (1600) | Won 2-1 | +211499 |
| 4legacy | 639 | Neuwirth, Milan (1437) | Lost 0-2 | -201479 |
| 5legacy | 601 | Liederhaus, Matej (1451) | Lost 1-2 | -181461 |
| 6legacy | 638 | Van Massenhove, Timothy (1450) | Won 2-0 | +181479 |
| 7legacy | 552 | Schneider, Yves (1466) | Lost 0-2 | -181461 |
| 8legacy | 519 | Janisch, Gunther (1444) | Lost 1-2 | -191442 |
| 9legacy | 461 | Chiassoni, Luca (1430) | Lost 0-2 | -181424 |
| top | average opponent: 1474record: 2-7 | new rating: 1424 | ||
| Grand Prix Prague 2015 (ORI standard) | starting rating: 1490 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 379 | Citterio, Christin (1500) | Won 2-1 | +181508 |
| 2standard | 249 | Huang, Matej (1668) | Won 2-1 | +211529 |
| 3standard | 165 | Srna, Martin (1536) | Won 2-0 | +181547 |
| 4standard | 144 | Arndt, Tilmann (1460) | Won 2-1 | +161563 |
| 5standard | 65 | Bach, Wolfgang (1550) | Lost 0-2 | -181545 |
| 6standard | 77 | Perez, Ruben (1898) | Lost 0-2 | -121533 |
| 7standard | 201 | Huke, Lothar (1508) | Lost 1-2 | -181515 |
| top | average opponent: 1588record: 4-3 | new rating: 1515 | ||
| Grand Prix Copenhagen 2015 (modern) | starting rating: 1510 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 401 | Egerbo, Kim (1556) | Won 2-0 | +181528 |
| 2modern | 265 | Cardenas, Andres (1518) | Lost 1-2 | -181510 |
| 3modern | 357 | Larsen, Marie (1500) | Won 2-0 | +181528 |
| 4modern | 216 | Hogberg, Daniel (1374) | Lost 0-2 | -211507 |
| 5modern | 470 | Leloup, Gregory (1535) | Lost 0-2 | -171490 |
| top | average opponent: 1496record: 2-3 | new rating: 1490 | ||
| Grand Prix Stockholm 2014 (KTK standard) | starting rating: 1491 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 1 | Espargiliere, Bastien (1385) | Lost 0-2 | -201471 |
| 2standard | 274 | Holmberg, Casper (1482) | Won 2-1 | +181489 |
| 3standard | 314 | Geertsen, Ditlev (1517) | Lost 0-2 | -171472 |
| 4standard | 355 | Johansson, Didrick (1468) | Won 2-0 | +181490 |
| 5standard | 275 | Peplinski, Piotr (1465) | Won 2-1 | +171507 |
| 6standard | 251 | Strautz, Marcel (1629) | Won 2-0 | +201527 |
| 7standard | 139 | De Place, Lauge (1540) | Lost 1-2 | -171510 |
| top | average opponent: 1498record: 4-3 | new rating: 1510 | ||
| Grand Prix Gothenburg 2013 (DGM limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 242 | Hansen, Andre (1588) | Won 2-0 | +201520 |
| 2sealed | 63 | Pasche, Anders (1538) | Lost 1-2 | -181502 |
| 3sealed | 252 | Nystrom, Per (1763) | Won 2-0 | +231525 |
| 4sealed | 156 | Pasgaard, Alexander (1541) | Won 2-0 | +181543 |
| 5sealed | 183 | Bohnstedt, Lutz (1437) | Lost 1-2 | -201523 |
| 6sealed | 252 | Wulf, Jesper (1747) | Lost 0-2 | -141509 |
| 7sealed | 269 | Bertin, Oscar (1508) | Lost 1-2 | -181491 |
| top | average opponent: 1589record: 3-4 | new rating: 1491 | ||