Drieghe, Jonas
Current rating: 1642
Record: 20-12-2
| Grand Prix Utrecht 2014 (M15 standard) | starting rating: 1599 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 314 | Poutsma, Marten (1500) | Won 2-0 | +161615 |
| 2standard | 312 | Leemans, Tom (1383) | Lost 1-2 | -221593 |
| 3standard | 493 | Wollaert, Kjell (1610) | Lost 0-2 | -181575 |
| 4standard | 667 | Isendam, Rainier (1507) | Won 1-0 | +171592 |
| 5standard | 397 | Pinto, Antonio (1616) | Won 2-0 | +181610 |
| 6standard | 290 | Cattrysse, Sabbe (1668) | Won 2-0 | +191629 |
| 7standard | 138 | Rieke, Konstantin (1469) | Lost 1-2 | -211608 |
| 8standard | 297 | Mendes, Mario (1479) | Won 1-0 | +161624 |
| 9standard | 223 | Nielsen, Simon (1644) | Won 2-1 | +181642 |
| top | average opponent: 1542record: 6-3 | new rating: 1642 | ||
| Grand Prix Antwerp 2013 (modern) | starting rating: 1522 | |||
| round | table | opponent (rating) | result | Δrating |
| 2modern | 215 | Schermer, Duncan (1548) | Draw 1-1 | +11523 |
| 3modern | 349 | Carabias, Alexandre (1689) | Lost 1-2 | -151508 |
| 4modern | 550 | Van Maarseveen, Chris (1502) | Draw 1-1 | -11507 |
| 5modern | 620 | Rikkola, Toni (1502) | Won 2-0 | +181525 |
| 6modern | 485 | Schmidt, Thomas (1614) | Won 2-1 | +201545 |
| 7modern | 354 | Hommelberg, Maarten P (1547) | Won 2-0 | +181563 |
| 8modern | 241 | Vasile, Adrian Iulian (1600) | Won 2-0 | +191582 |
| 9modern | 159 | Vretman, Alexandre (1527) | Won 2-1 | +171599 |
| top | average opponent: 1566record: 5-1-2 | new rating: 1599 | ||
| Grand Prix Prague 2013 (M14 limited) | starting rating: 1523 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 282 | Koksch, Florian (1623) | Won 2-0 | +201543 |
| 3sealed | 33 | Heruth, Martin (1569) | Lost 0-2 | -181525 |
| 4sealed | 263 | Turovskiy, Boris (1420) | Won 2-1 | +161541 |
| 5sealed | 193 | Kozula, Pavel (1518) | Lost 0-2 | -181523 |
| 6sealed | 409 | Brodzak, Michal (1596) | Lost 1-2 | -171506 |
| 7sealed | 361 | Myslinski, Grzegorz (1498) | Won 2-0 | +181524 |
| 8sealed | 324 | Kumok, Vadim (1443) | Won 2-1 | +171541 |
| 9sealed | 209 | Heino, Erkki (1508) | Lost 0-2 | -191522 |
| top | average opponent: 1522record: 4-4 | new rating: 1522 | ||
| Grand Prix Rimini 2013 (M14 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 20 | Erjavec, Jure (1482) | Lost 1-2 | -181482 |
| 2sealed | 260 | Oppliger, Daniel (1597) | Won 2-1 | +201502 |
| 3sealed | 215 | Jans, Roel (1537) | Lost 1-2 | -181484 |
| 4sealed | 424 | Ilg, Manuel (1485) | Won 2-1 | +181502 |
| 5sealed | 381 | Tassinari, Luca (1568) | Lost 1-2 | -161486 |
| 6sealed | 358 | Di Sevo, Mirko (1651) | Won 2-1 | +211507 |
| 7sealed | 301 | Zapparoli, Mattia (1468) | Won 2-1 | +171524 |
| 8sealed | 234 | Tavares, Paulo (1528) | Lost 0-2 | -181506 |
| 9sealed | 215 | Rodriguez, Bert (1456) | Won 2-0 | +171523 |
| top | average opponent: 1530record: 5-4 | new rating: 1523 | ||