Duchesne, Pierre
Current rating: 1589
| Grand Prix Metz 2017 (HOU limited) | starting rating: 1494 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 132 | Waara, Anton (1519) | Lost 1-2 | -171477 |
| 4sealed | 436 | Messer, Kevin (1520) | Won 2-0 | +191496 |
| 5sealed | 197 | Sondag, Guido (1834) | Won 2-0 | +241520 |
| 6sealed | 131 | Kauwen, Martin (1626) | Won 2-1 | +191539 |
| 7sealed | 87 | Aurejac, Alexandre (1860) | Won 2-1 | +241563 |
| 8sealed | 61 | Trossbach, Martin (1789) | Won 2-0 | +221585 |
| 9sealed | 34 | Geiger, Frederic (1679) | Lost 0-2 | -161569 |
| 10draft | 17 | Nosowicz, Karol (1923) | Lost 0-2 | -121557 |
| 11draft | 171 | Henisch, Tim (1543) | Won 2-0 | +181575 |
| 12draft | 112 | van der Vegt, Jan (1872) | Won 2-0 | +231598 |
| 13draft | 143 | Kohn, Michel (1898) | Lost 0-2 | -131585 |
| 14draft | 117 | Kostadinov, Dimitre (1661) | Lost 0-2 | -161569 |
| 15draft | 87 | Yendall, David (1713) | Won 2-1 | +201589 |
| top | average opponent: 1726record: 8-5 | new rating: 1589 | ||
| Grand Prix Prague 2017 (AER limited) | starting rating: 1490 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 164 | Schwarz, Stephan (1714) | Lost 1-2 | -141476 |
| 3sealed | 711 | Telge, Simon (1462) | Won 2-1 | +181494 |
| 4sealed | 405 | Hoppe, Sebastian (1429) | Lost 1-2 | -191475 |
| 5sealed | 584 | Berteaux, Vincent (1395) | Lost 0-2 | -191456 |
| 6sealed | 760 | Chang, Yul (1481) | Won 2-0 | +181474 |
| 7sealed | 611 | Rovsek, Erika (1501) | Won 2-0 | +181492 |
| 8sealed | 339 | Oliveros, Carlos (1734) | Lost 0-2 | -131479 |
| 9sealed | 511 | Geuens, Peter (1345) | Won 2-0 | +151494 |
| top | average opponent: 1508record: 4-4 | new rating: 1494 | ||
| Grand Prix Paris 2016 (OGW standard) | starting rating: 1557 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 230 | Koch, Rene (1496) | Lost 0-2 | -191538 |
| 2standard | 470 | Niethammer, Felix (1614) | Won 2-0 | +201558 |
| 3standard | 498 | Strijd, Robin (1400) | Won 2-0 | +151573 |
| 4standard | 351 | Jean, Benjamin (1641) | Lost 0-2 | -171556 |
| 5standard | 438 | Warrington, Sophie (1536) | Lost 0-2 | -181538 |
| 6standard | 550 | Vilain, Arnaud (1437) | Lost 0-2 | -201518 |
| 7standard | 584 | Rogiers, Sander (1439) | Lost 1-2 | -201498 |
| 8standard | 547 | Ringoir, Lesly (1123) | Won 2-0 | +121510 |
| 9standard | 453 | Le Barbe, Gaetan (1425) | Lost 0-2 | -201490 |
| top | average opponent: 1457record: 3-6 | new rating: 1490 | ||
| Grand Prix Lyon 2015 (BFZ limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 429 | Lebrun, Cedric (1500) | Won 2-0 | +181518 |
| 2sealed | 115 | Aristo, Alberto (1420) | Won 2-1 | +161534 |
| 3sealed | 16 | Kopfli, Hugo (1572) | Won 2-1 | +191553 |
| 4sealed | 182 | Vallejo Pacheco, Omar (1683) | Lost 1-2 | -161537 |
| 5sealed | 130 | Zarges, Florian (1614) | Lost 1-2 | -161521 |
| 6sealed | 299 | Buszkiewicz, Marek (1426) | Won 2-1 | +161537 |
| 7sealed | 264 | Knittel, Fabrice (1465) | Won 2-0 | +171554 |
| 8sealed | 186 | Collinet, Patrick (1651) | Won 0-0 | +191573 |
| 9sealed | 130 | Lam, Wilson (1688) | Lost 0-2 | -161557 |
| top | average opponent: 1557record: 6-3 | new rating: 1557 | ||