Willem, Jonathan
Current rating: 1550
Record: 9-7
| Grand Prix Lille 2018 (GRN standard) | starting rating: 1537 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 193 | Narbonne, Thomas (1444) | Won 2-0 | +161553 |
| 2standard | 237 | van Montfoort, Kees (1533) | Won 2-0 | +181571 |
| 3standard | 100 | Deltour, Louis (1969) | Lost 0-2 | -111560 |
| 4standard | 217 | Keey, James (1570) | Won 2-0 | +181578 |
| 5standard | 303 | Maubert, Noham (1842) | Lost 0-2 | -141564 |
| 6standard | 275 | Garcia Gonzalez, Sergio (1858) | Lost 0-2 | -121552 |
| 7standard | 359 | Chevalier, Kevin (1497) | Won 2-1 | +171569 |
| 8standard | 259 | Esmez, Antonin (1515) | Lost 0-2 | -191550 |
| average opponent: 1654record: 4-4 | new rating: 1550 | |||
| Grand Prix Brussels 2018 (M19 standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 148 | Simioni, Tanguy (1427) | Won 2-0 | +171517 |
| 2standard | 2 | Mangodt, Emma (1486) | Lost 0-2 | -191498 |
| 3standard | 465 | Bosman, Robin (1499) | Lost 1-2 | -181480 |
| 4standard | 410 | Van Den Abeele, Bram (1486) | Won 2-0 | +181498 |
| 5standard | 297 | Paesschesoone, Griffin (1499) | Lost 0-2 | -181480 |
| 6standard | 425 | Piva, Manuela (1498) | Won 2-1 | +191499 |
| 7standard | 308 | Klein, Simon (1441) | Won 2-1 | +171516 |
| 8standard | 271 | Varlet, Sebastien (1692) | Won 2-1 | +211537 |
| average opponent: 1504record: 5-3 | new rating: 1537 | |||