Park, Simon
Current rating: 1457
Record: 3-6-1
| Grand Prix Brussels 2020 (pioneer) | starting rating: 1471 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 305 | Van Liempd, Barend (1482) | Won 2-1 | +181489 |
| 2pioneer | 121 | Honnay, Lukas (1518) | Lost 0-2 | -181471 |
| 3pioneer | 699 | Eberhard, Samuel (1742) | Lost 0-2 | -131458 |
| 4pioneer | 647 | Ostermann, Reinhold (1486) | Won 2-0 | +191477 |
| 5pioneer | 424 | Zygarlowski, Witold (1371) | Lost 1-2 | -201457 |
| average opponent: 1520record: 2-3 | new rating: 1457 | |||
| Grand Prix Stockholm 2018 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 356 | Hansen, Rasmus [EST] (1700) | Won 2-1 | +221522 |
| 2modern | 57 | Faessler, Tim (1664) | Lost 1-2 | -161506 |
| 3modern | 486 | Elvering, Niklas (1567) | Lost 1-2 | -171489 |
| 4modern | 520 | Arnesson, Lucas (1488) | Draw 1-1 | 01489 |
| 5modern | 505 | Pettersson, Goran (1460) | Lost 0-2 | -181471 |
| average opponent: 1576record: 1-3-1 | new rating: 1471 | |||