Boersen, Jerryt
Current rating: 1444
| Grand Prix Metz 2017 (HOU limited) | starting rating: 1495 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 21 | Hunkeler, Luca (1573) | Lost 1-2 | -171478 |
| 2sealed | 391 | Faucher, Julien (1616) | Lost 1-2 | -151463 |
| 3sealed | 644 | Federspiel, Pierre-Nicolas (1410) | Lost 1-2 | -191444 |
| 4sealed | 675 | Barbier, Alain (1447) | Draw 1-1 | 01444 |
| top | average opponent: 1511record: 0-3-1 | new rating: 1444 | ||
| Grand Prix Amsterdam 2017 (AKH standard) | starting rating: 1537 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 178 | Clay, Bradley (1463) | Lost 1-2 | -201517 |
| 2standard | 295 | Smedinga, Tim (1451) | Won 2-1 | +171534 |
| 3standard | 450 | Valkenberg, Anton (1424) | Lost 0-2 | -201514 |
| 4standard | 451 | Dallinga, Wiecher (1547) | Lost 0-2 | -171497 |
| 5standard | 498 | Guillamon, Hector (1466) | Won 2-1 | +171514 |
| 6standard | 407 | Perez, Emmanuel (1460) | Lost 1-2 | -191495 |
| top | average opponent: 1469record: 2-4 | new rating: 1495 | ||
| Grand Prix Utrecht 2015 (MM2 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 100 | Rode, Jens (1500) | Lost 1-2 | -181482 |
| 2sealed | 382 | Mieth, Tobias (1482) | Lost 1-2 | -181464 |
| 3sealed | 651 | Dekker, Vincent (1362) | Won 2-0 | +161480 |
| 4sealed | 548 | Haag, Beny (1451) | Won 2-1 | +181498 |
| 5sealed | 455 | Verhulsdonk, Jan (1396) | Won 2-1 | +161514 |
| 6sealed | 339 | Friis, Jacob (1486) | Won 2-1 | +171531 |
| 7sealed | 137 | Maaten, Rogier (1834) | Won 2-1 | +241555 |
| 8sealed | 179 | Lemos, Pedro (1549) | Lost 0-2 | -181537 |
| top | average opponent: 1508record: 5-3 | new rating: 1537 | ||