Niemeijer, Johnny
Current rating: 1677
| Grand Prix Birmingham 2018 (leg) (legacy) | starting rating: 1646 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 186 | Massaro, Teodor (1500) | Won 2-0 | +161662 |
| 2legacy | 117 | Ong, Hak Tiong (1522) | Draw 1-1 | -31659 |
| 3legacy | 272 | Pinto, Goncalo (1841) | Draw 1-1 | +31662 |
| 4legacy | 375 | Denaxas, Stavros (1499) | Won 2-0 | +151677 |
| 5legacy | 255 | Melin, Pierre (1681) | Won 2-0 | +181695 |
| 6legacy | 162 | Van Der Beek, Laurens (1693) | Lost 0-2 | -181677 |
| top | average opponent: 1623record: 3-1-2 | new rating: 1677 | ||
| Grand Prix Manchester 2016 (SOI standard) | starting rating: 1543 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 493 | Giles, Nick (1501) | Won 2-0 | +171560 |
| 2standard | 23 | Price, Samuel (1518) | Won 2-1 | +171577 |
| 3standard | 263 | Davies, Daniel (1428) | Won 2-1 | +161593 |
| 4standard | 27 | Lee, Shi Tian (2111) | Won 2-1 | +261619 |
| 5standard | 2 | Staples, James (1650) | Won 2-0 | +191638 |
| 6standard | 29 | Mauguin, Thomas (1637) | Lost 0-2 | -181620 |
| 7standard | 57 | Brown, Matt [ENG] (1531) | Lost 1-2 | -201600 |
| 8standard | 176 | Horev, Ori (1588) | Lost 0-2 | -181582 |
| 9standard | 206 | Matthies, Mario (1623) | Won 2-0 | +191601 |
| 10standard | 152 | Calf, David (1763) | Lost 0-2 | -151586 |
| 11standard | 221 | Balfour, Brandon (1527) | Won 2-0 | +171603 |
| 12standard | 174 | Pettit, Josh (1571) | Won 2-0 | +171620 |
| 13standard | 119 | Grayson, Neil (1655) | Won 2-0 | +191639 |
| 14standard | 103 | Dominguez, Javier (1921) | Lost 1-2 | -131626 |
| 15standard | 113 | Rolph, Sam-Luca (1760) | Won 2-0 | +201646 |
| top | average opponent: 1652record: 10-5 | new rating: 1646 | ||
| Grand Prix Utrecht 2015 (MM2 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 2188 | Figlarz, Johan (1571) | Won 2-1 | +191519 |
| 2sealed | 2066 | Rossi, Christian (1535) | Won 2-1 | +191538 |
| 3sealed | 2008 | Van Vliet, Joost (1535) | Lost 1-2 | -181520 |
| 4sealed | 2287 | Tang, Chi Foe (1475) | Won 2-1 | +171537 |
| 5sealed | 2133 | van Egmond, Jeff (1571) | Won 2-0 | +181555 |
| 6sealed | 2083 | Hammersley, Lee (1509) | Won 2-1 | +181573 |
| 7sealed | 2056 | Sevaux, Yoann (1772) | Lost 1-2 | -151558 |
| 8sealed | 2064 | Lippmann, Robert (1714) | Lost 0-2 | -151543 |
| top | average opponent: 1585record: 5-3 | new rating: 1543 | ||