Guillaumin, Theo
Current rating: 1581
Record: 34-32-1
| Regional Championships Lille 2023 (pioneer) | starting rating: 1598 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 250 | Margiotta, Marco (1565) | Lost 0-2 | -181580 |
| 2pioneer | 309 | Aviles, Joel (1424) | Won 2-1 | +151595 |
| 3pioneer | 100 | Bach, Wolfgang (1738) | Lost 0-2 | -161579 |
| 4pioneer | 216 | Dictus, Mark (1623) | Won 2-0 | +191598 |
| 5pioneer | 132 | Bergelin, Jakob (1816) | Won 2-1 | +221620 |
| 6pioneer | 144 | Carretta, Michele (1549) | Lost 1-2 | -191601 |
| 7pioneer | 134 | Rouar, Julien (1766) | Lost 0-2 | -151586 |
| 8pioneer | 166 | Ferroni, Davide (1431) | Won 2-0 | +151601 |
| 9pioneer | 126 | Carretta, Marco (1511) | Lost 1-2 | -201581 |
| top | average opponent: 1603record: 4-5 | new rating: 1581 | ||
| Grand Prix Lyon 2020 (THB standard) | starting rating: 1604 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 55 | Bonin, Laurent (1560) | Won 2-0 | +171621 |
| 3standard | 103 | Jonathan, Clauzel (1538) | Won 2-0 | +161637 |
| 4standard | 51 | Carbonell, Leo (1657) | Lost 0-2 | -171620 |
| 5standard | 79 | Vallejo Pacheco, Omar (1807) | Lost 1-2 | -151605 |
| 6standard | 122 | Plagge, Adrian (1490) | Draw 1-1 | -21603 |
| 7standard | 130 | Rousseaux, Alexandre (1455) | Won 2-0 | +151618 |
| 8standard | 92 | Simons, Alexis (1505) | Lost 1-2 | -201598 |
| top | average opponent: 1573record: 3-3-1 | new rating: 1598 | ||
| Grand Prix Brussels 2020 (pioneer) | starting rating: 1599 | |||
| round | table | opponent (rating) | result | Δrating |
| 2pioneer | 120 | Bral, Pierre-Axel (1498) | Lost 1-2 | -201579 |
| 3pioneer | 599 | Diaz Saco, Jose Carlos (1500) | Lost 1-2 | -201559 |
| 4pioneer | 574 | Farrugia, Michael (1398) | Lost 1-2 | -211538 |
| 5pioneer | 695 | Van den Bulck, Steve (1403) | Won 2-0 | +161554 |
| 6pioneer | 523 | Alvarez, Jacobo (1490) | Won 2-0 | +171571 |
| 7pioneer | 391 | Claes, Nick (1436) | Won 2-0 | +151586 |
| 8pioneer | 292 | Giacomini, Yannick (1553) | Won 2-0 | +181604 |
| top | average opponent: 1468record: 4-3 | new rating: 1604 | ||
| Grand Prix Lyon 2019 (ELD standard) | starting rating: 1614 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 122 | Jawzaa, Ziad (1518) | Won 2-0 | +161630 |
| 3standard | 3 | Monnier, Nicolas (1508) | Won 2-1 | +161646 |
| 4standard | 41 | Velazquez, Jose Luis (1998) | Lost 0-2 | -121634 |
| 5standard | 77 | Mangenot, Mathias (1539) | Lost 1-2 | -201614 |
| 6standard | 251 | Hugony, Francesco (1750) | Lost 1-2 | -151599 |
| top | average opponent: 1663record: 2-3 | new rating: 1599 | ||
| Grand Prix London 2019 (WAR sealed) | starting rating: 1556 | |||
| round | table | opponent (rating) | result | Δrating |
| A1sealed | 94 | Miracca, Alessandro (1656) | Lost 0-2 | -161540 |
| A2sealed | 299 | Kucukozmen, Gani Gorkem (1483) | Won 2-0 | +171557 |
| A3sealed | 147 | Illanas Sanchez-Beato, Luis Miguel (1463) | Won 2-0 | +161573 |
| A4sealed | 160 | Zhuang, Kai (1722) | Won 2-1 | +211594 |
| A5sealed | 43 | Gao, Changsong (1608) | Won 2-0 | +181612 |
| A6sealed | 38 | Samuilis, Tomas (1618) | Won 2-0 | +181630 |
| A7sealed | 16 | Ganz, Andreas (1890) | Won 2-1 | +231653 |
| sealed | 27 | Del Pivo, Marco (1768) | Won 2-1 | +201673 |
| sealed | 27 | Fletcher, Geoff (1722) | Won 2-0 | +191692 |
| sealed | 11 | Peter, Haka (1633) | Lost 0-2 | -191673 |
| sealed | 31 | Harle, Thomas (1869) | Lost 0-2 | -151658 |
| sealed | 220 | Ramis Pascual, Toni (1999) | Lost 1-2 | -121646 |
| sealed | 233 | Schwass, Mark (1749) | Lost 1-2 | -161630 |
| sealed | 233 | Diekjobst, Lukas (1719) | Lost 0-2 | -161614 |
| top | average opponent: 1707record: 8-6 | new rating: 1614 | ||
| Grand Prix Strasbourg 2019 (RNA limited) | starting rating: 1520 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 136 | Kuhnert, Paul-Phillipp (1607) | Won 2-1 | +201540 |
| 4sealed | 38 | Morger, Yanick (1485) | Won 2-1 | +171557 |
| 5sealed | 68 | Bailly, Laurent (1814) | Won 2-1 | +221579 |
| 6sealed | 35 | Annenkov, Mikhail (1509) | Lost 1-2 | -191560 |
| 7sealed | 123 | Volkers, Bernd (1681) | Lost 1-2 | -161544 |
| 8sealed | 171 | Korevaar, Martijn (1725) | Won 2-1 | +211565 |
| 9sealed | 84 | Willefert, Malo (1765) | Lost 1-2 | -141551 |
| 10draft | 29 | Dezani, Jeremy (2194) | Won 2-1 | +281579 |
| 11draft | 64 | Detant, Lucas (1568) | Won 2-0 | +181597 |
| 12draft | 89 | Mauch, Hannes (1946) | Lost 0-2 | -121585 |
| 13draft | 83 | Mackowiak, Patrick (1873) | Lost 1-2 | -131572 |
| 14draft | 71 | Berger, Natalia (1656) | Lost 1-2 | -161556 |
| top | average opponent: 1735record: 6-6 | new rating: 1556 | ||
| Grand Prix Lille 2018 (GRN standard) | starting rating: 1536 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 161 | Harispuru, Pierre (1500) | Won 2-1 | +181554 |
| 2standard | 63 | Pons, Victor (1518) | Won 2-1 | +171571 |
| 3standard | 308 | Dinescu, Fabian (1627) | Lost 1-2 | -171554 |
| 4standard | 411 | Vagneur, Jordan (1515) | Lost 1-2 | -191535 |
| 5standard | 389 | Vu, Jeremy (1690) | Lost 0-2 | -151520 |
| top | average opponent: 1570record: 2-3 | new rating: 1520 | ||
| Grand Prix Brussels 2018 (M19 standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 258 | Herremans, Hippolyth (1445) | Lost 0-2 | -191481 |
| 2standard | 269 | Chanoux, Andrea (1438) | Won 2-1 | +171498 |
| 3standard | 386 | Verstraten, Teun (1515) | Won 2-0 | +191517 |
| 4standard | 196 | Williams, Peter (1516) | Won 2-0 | +171534 |
| 5standard | 156 | Lukosevicius, Marijus Jonas (1543) | Won 2-0 | +191553 |
| 6standard | 96 | Stagnoli, Nicola (1588) | Lost 1-2 | -181535 |
| 7standard | 225 | Barthel, Jeff (1543) | Won 2-1 | +181553 |
| 8standard | 84 | Thorgren, Mathias (1600) | Lost 1-2 | -171536 |
| top | average opponent: 1523record: 5-3 | new rating: 1536 | ||