Johnstone, Robert
Current rating: 1493
| Grand Prix Hong Kong 2017 (XLN limited) | starting rating: 1515 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 168 | Wong, Sam (1516) | Won 2-1 | +181533 |
| 2sealed | 90 | Ler, Pris (1440) | Lost 0-2 | -201513 |
| 3sealed | 1004 | Mo, H Hin (1501) | Won 2-1 | +181531 |
| 4sealed | 111 | Shibata, Yasumasa (1513) | Lost 0-2 | -181513 |
| 5sealed | 196 | Ocampo, Dennis (1439) | Lost 0-2 | -201493 |
| 6sealed | 250 | Voon, Khing Vui (1451) | Lost 0-2 | -181475 |
| 7sealed | 279 | Matsumoto, Shou (1396) | Lost 1-2 | -201455 |
| 8sealed | 267 | Zhang, Jingchun (1436) | Won 2-0 | +181473 |
| 9sealed | 229 | Otsuka, Tomohito (1606) | Won 2-0 | +201493 |
| top | average opponent: 1477record: 4-5 | new rating: 1493 | ||
| Grand Prix Chiba 2016 (legacy) | starting rating: 1521 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 154 | Kimura, Tetsuya (1500) | Won 2-0 | +171538 |
| 2legacy | 172 | Niikawa, Shouhei (1518) | Won 2-1 | +181556 |
| 3legacy | 278 | Nishidome, Keitarou (1569) | Lost 1-2 | -181538 |
| 4legacy | 730 | Kutomi, Hirotaka (1512) | Lost 0-2 | -181520 |
| 5legacy | 805 | Kazuki, Sakamura (1502) | Lost 1-2 | -191501 |
| 6legacy | 916 | Amano, Takatoshi (1392) | Lost 1-2 | -201481 |
| 7legacy | 922 | Ishiyama, Hiroki (1449) | Draw 1-1 | 01481 |
| 8legacy | 835 | Fujimoto, Takashi (1338) | Won 2-0 | +151496 |
| 9legacy | 688 | Zhou, Zhiqi (1543) | Won 2-0 | +191515 |
| top | average opponent: 1480record: 4-4-1 | new rating: 1515 | ||
| Grand Prix Melbourne 2016 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 12 | Maurici, Micheal (1827) | Won 2-1 | +241524 |
| 2modern | 98 | Sanders, Michael [NZL] (1518) | Won 2-0 | +181542 |
| 3modern | 110 | Khalil, Saher (1500) | Lost 0-2 | -191523 |
| 4modern | 230 | Macdonald, William (1506) | Won 2-1 | +181541 |
| 5modern | 101 | Abbey, Kai (1504) | Lost 1-2 | -191522 |
| 6modern | 298 | Lessmann, Richard (1476) | Draw 1-1 | -11521 |
| 7modern | 232 | Maurer, David (1517) | Draw 1-1 | 01521 |
| 8modern | 288 | Crawford, Brennan (1518) | Lost 1-2 | -181503 |
| 9modern | 274 | Mitchell, Cassandra (1485) | Won 2-1 | +181521 |
| top | average opponent: 1539record: 4-3-2 | new rating: 1521 | ||