Courtois, Sergio
Current rating: 1495
Record: 4-4 (GP) / 6-10 (professional)
| Mythic Championship IV (modern) | starting rating: 1501 | |||
| round | table | opponent (rating) | result | Δrating |
| 1draft | 216 | Giovannetti, Simone (1791) | Lost 0-2 | -131488 |
| 2draft | 94 | Beauchamps, Freddy (1546) | Won 2-0 | +191507 |
| 3draft | 176 | Pardee, Samuel (2138) | Won 2-0 | +281535 |
| 4modern | 60 | Tomajko, Oliver (1912) | Won 2-1 | +251560 |
| 5modern | 25 | Gaieski, Ethan (1954) | Won 2-0 | +251585 |
| 6modern | 20 | Ma, Noah (1805) | Lost 0-2 | -141571 |
| 7modern | 73 | Andrade, Joao (1964) | Lost 1-2 | -111560 |
| 8modern | 111 | Berteaux, Julien (1890) | Lost 1-2 | -131547 |
| 9draft | 85 | Stratton, Alexander (1753) | Lost 1-2 | -141533 |
| 10draft | 85 | Davis, Jim (1843) | Lost 0-2 | -121521 |
| 11draft | 80 | Rolf, John (1938) | Lost 0-2 | -111510 |
| 12modern | 140 | Reuschel, Carl (1343) | Lost 1-2 | -211489 |
| 13modern | 138 | Burrough, Ben (1486) | Lost 1-2 | -181471 |
| 14modern | 133 | Yoshida, Koki (1578) | Won 2-0 | +201491 |
| 15modern | 128 | Sadowsky, Joel (1756) | Lost 1-2 | -141477 |
| 16modern | 124 | Last, Ryan (1480) | Won 2-0 | +181495 |
| average opponent: 1761record: 6-10 | new rating: 1495 | |||
| Grand Prix Lille 2018 (GRN standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 14 | Merlet, Cedric (1432) | Won 2-1 | +171517 |
| 2standard | 173 | Grouiller, Brian (1692) | Lost 1-2 | -151502 |
| 3standard | 523 | Van Hoorn, Rene (1556) | Won 2-1 | +191521 |
| 4standard | 267 | Immerzeel, Nick (1469) | Lost 0-2 | -191502 |
| 5standard | 493 | Nickelsen, Kjartan (1700) | Lost 0-2 | -141488 |
| 6standard | 473 | Vache, Timothy (1385) | Won 2-0 | +161504 |
| 7standard | 407 | Bizet, Philippe (1358) | Lost 1-2 | -211483 |
| 8standard | 371 | David-Alexandre, Fontaine (1478) | Won 2-1 | +181501 |
| average opponent: 1509record: 4-4 | new rating: 1501 | |||