Demangeon, Romain
Current rating: 1529
Record: 19-17
| Grand Prix Lille 2018 (GRN standard) | starting rating: 1553 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 221 | Martos Villalba, Victor (1544) | Lost 0-2 | -191534 |
| 2standard | 316 | Leblanc, Simon (1522) | Won 2-1 | +181552 |
| 3standard | 514 | Camenisch, Christoph (1425) | Won 2-1 | +161568 |
| 4standard | 299 | Laumonier, Nicolas (1466) | Lost 0-2 | -201548 |
| 5standard | 356 | Seoane, Sergio (1515) | Lost 0-1 | -191529 |
| top | average opponent: 1494record: 2-3 | new rating: 1529 | ||
| Grand Prix Strasbourg 2014 (KTK limited) | starting rating: 1516 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 1001 | Reibel, Leonard (1500) | Won 2-0 | +181534 |
| 2sealed | 846 | Richard, Jefferson (1519) | Lost 1-2 | -181516 |
| 3sealed | 1098 | Gaspard, Alexandre (1453) | Won 2-1 | +171533 |
| 4sealed | 894 | Hauck, Manuel (1633) | Won 2-0 | +201553 |
| top | average opponent: 1526record: 3-1 | new rating: 1553 | ||
| Grand Prix London 2013 (GTC limited) | starting rating: 1494 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 277 | Binks, Mike (1428) | Won 2-0 | +171511 |
| 2sealed | 366 | Russell, Jason (1397) | Lost 0-2 | -201491 |
| 3sealed | 602 | Drenck, Karl-emil (1611) | Won 2-0 | +201511 |
| 4sealed | 356 | Sbrozzi, Luigi (1705) | Won 2-0 | +221533 |
| 5sealed | 317 | Nguyen, Lim (1538) | Lost 1-2 | -181515 |
| 6sealed | 439 | George, Ben (1550) | Won 2-1 | +181533 |
| 7sealed | 401 | Collinet, Patrick (1592) | Lost 0-2 | -171516 |
| top | average opponent: 1546record: 4-3 | new rating: 1516 | ||
| Grand Prix Paris 2011 (MBS limited) | starting rating: 1494 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 1022 | Ghangen, Magnus (1500) | Lost 0-2 | -181476 |
| 2sealed | 1245 | Baldo, Sebastien (1483) | Lost 1-2 | -181458 |
| 3sealed | 1256 | Graire, Yannick (1462) | Won 2-1 | +181476 |
| 4sealed | 1275 | Frederic, Perez (1487) | Won 2-1 | +181494 |
| 5sealed | 1229 | Demaio, Giovanni (1507) | Won 2-0 | +181512 |
| 6sealed | 1163 | Newbold, George (1509) | Lost 1-2 | -181494 |
| top | average opponent: 1491record: 3-3 | new rating: 1494 | ||
| Grand Prix Paris 2004 (COK limited) | starting rating: 1536 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 280 | Driessen, Thomas (1501) | Won 2-0 | +181554 |
| 2sealed | 60 | Delattre, Olivier (1519) | Lost 1-2 | -191535 |
| 3sealed | 224 | Winkel, Carlos (1405) | Lost 0-2 | -201515 |
| 4sealed | 294 | Loddo, Bastien (1424) | Won 2-0 | +161531 |
| 5sealed | 206 | Schneider, Jean (1486) | Lost 0-2 | -191512 |
| 6sealed | 235 | Maury, Sebastien (1484) | Lost 0-2 | -181494 |
| top | average opponent: 1470record: 2-4 | new rating: 1494 | ||
| Grand Prix Zurich 2004 (Mirrodin block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 175 | Mattle, Maurice (1500) | Won 2-1 | +181518 |
| 2block | 40 | Giacomelli, Franco (1534) | Lost 1-2 | -181500 |
| 3block | 137 | Polkinghorne, Adam (1521) | Won 2-1 | +191519 |
| 4block | 137 | Daniel, Kai (1539) | Won 2-1 | +181537 |
| 5block | 85 | Fenu, Davide (1440) | Lost 1-2 | -201517 |
| 6block | 141 | Wolfensberger, Daniel (1533) | Won 2-1 | +191536 |
| 7block | 108 | Hofmann, Mike (1518) | Lost 0-2 | -191517 |
| 8block | 115 | Jacquet, Lois (1567) | Won 2-1 | +191536 |
| top | average opponent: 1519record: 5-3 | new rating: 1536 | ||