Bossy, Gaetan
Current rating: 1772 (#3029)
Record: 78-48-1 (GP) / 15-15-1 (professional)
Grand Prix Lyon 2015Grand Prix Lyon 2018Pro Tour DominariaGrand Prix Turin 2018Grand Prix Strasbourg 2019Grand Prix London 2019Grand Prix Barcelona 2019Grand Prix Utrecht 2019Grand Prix Lyon 2019Grand Prix Lyon 2020Players Tour Online 1Regional Championships Sofia 2022Regional Championships Athens 2023
| Regional Championships Athens 2023 (pioneer) | starting rating: 1811 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 87 | Soto, Gabriel (1567) | Lost 1-2 | -221789 |
| 2pioneer | 166 | Krampfl, Manuel (1519) | Won 2-0 | +131802 |
| 3pioneer | 166 | Vukomanovic, Igor (1484) | Won 2-0 | +121814 |
| 4pioneer | 86 | Carretta, Michele (1533) | Lost 0-2 | -231791 |
| 5pioneer | 91 | Roebuck, Alex (1497) | Lost 1-2 | -231768 |
| 6pioneer | 148 | Roque, Francisco (1450) | Won 2-0 | +121780 |
| 7pioneer | 85 | Tamosiunas, Edvinas (1506) | Won 2-0 | +131793 |
| 8pioneer | 87 | Santos, Diogo (1733) | Won 2-1 | +171810 |
| 9pioneer | 56 | Krsmanovic, Nikola (1548) | Won 2-0 | +141824 |
| 10pioneer | 24 | Kowalski, Grzegorz (1843) | Lost 1-2 | -181806 |
| 11pioneer | 42 | Mondaini, Matheus (1525) | Won 2-1 | +131819 |
| 12pioneer | 34 | Vaz Mariano, Jefferson (1576) | Won 2-1 | +141833 |
| 13pioneer | 30 | Sperring, Edward (1591) | Lost 1-2 | -231810 |
| 14pioneer | 32 | Raptidis, Aristotelis (1658) | Lost 0-2 | -201790 |
| 15pioneer | 47 | Sodomirski, Tomasz (1812) | Lost 0-2 | -181772 |
| top | average opponent: 1590record: 8-7 | new rating: 1772 | ||
| Regional Championships Sofia 2022 (pioneer) | starting rating: 1785 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 90 | Fiorucci, Giacomo (1698) | Lost 0-2 | -201765 |
| 2pioneer | 135 | Stolnikov, Sergey (1526) | Won 2-0 | +141779 |
| 3pioneer | 100 | Starke, Robert (1549) | Won 2-0 | +141793 |
| 4pioneer | 65 | Cammilluzzi, Marco (1805) | Lost 0-2 | -181775 |
| 5pioneer | 133 | Campbell, Alex (1460) | Won 2-0 | +131788 |
| 6pioneer | 92 | Recchiuti, Francesco (1516) | Lost 0-2 | -231765 |
| 7pioneer | 113 | Potovin, Nikolay (1829) | Won 2-1 | +191784 |
| 8pioneer | 82 | Sanchez, Francisco (1988) | Won 2-1 | +221806 |
| 9pioneer | 60 | Alvarez, Adrian (1432) | Won 2-1 | +111817 |
| 10pioneer | 35 | Kalaydzhiev, Emil (1670) | Lost 0-2 | -211796 |
| 11pioneer | 41 | Marconi, Michele (1567) | Won 2-0 | +141810 |
| 12pioneer | 40 | Danesi, Alessandro (1844) | Won 2-0 | +191829 |
| 13pioneer | 22 | Dominguez, Javier (1911) | Lost 1-2 | -171812 |
| 14pioneer | 32 | Santos, Bernardo (1828) | Lost 1-2 | -171795 |
| 15pioneer | 40 | van der Linden, Leon (1697) | Won 2-0 | +161811 |
| top | average opponent: 1688record: 9-6 | new rating: 1811 | ||
| Players Tour Online 1 (MTGA IKO standard) | starting rating: 1803 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 30 | Guichard, Louis (1637) | Won 2-0 | +151818 |
| 2standard | 3 | Zimmermann, Raoul (1949) | Won 2-1 | +211839 |
| 3standard | 13 | Harane, Kenta (2161) | Lost 0-2 | -131826 |
| 4standard | 14 | Hrycej, Martin (1913) | Lost 1-2 | -161810 |
| 5standard | 62 | Yakushi, Hideki (1673) | Won 2-0 | +151825 |
| 6standard | 46 | Rolph, Sam-Luca (1899) | Lost 0-2 | -161809 |
| 7standard | 58 | Ghini, Davide (1622) | Won 2-0 | +141823 |
| 8standard | 38 | Tsujikawa, Taiga (1758) | Won 2-0 | +171840 |
| 9standard | 17 | Osipenko, Dmitrii (1623) | Lost 1-2 | -221818 |
| 10standard | 27 | Karsten, Frank (1936) | Lost 1-2 | -161802 |
| 11standard | 38 | Alves, Guilherme (1633) | Won 2-1 | +151817 |
| 12standard | 42 | Flury, Julian Felix (1846) | Lost 1-2 | -171800 |
| 13standard | 39 | Cifka, Stanislav (1962) | Lost 0-2 | -151785 |
| 14standard | 45 | Torres, Bernardo (1809) | Won 2-1 | +181803 |
| 15standard | 36 | de Graaff, Claes (1779) | Lost 1-2 | -181785 |
| top | average opponent: 1813record: 7-8 | new rating: 1785 | ||
| Grand Prix Lyon 2020 (THB standard) | starting rating: 1841 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 35 | Bornoz, Tristan (1632) | Lost 0-2 | -221819 |
| 3standard | 219 | Adatte, Tristan (1463) | Won 2-1 | +121831 |
| 4standard | 117 | Picot, Kedian (1481) | Won 2-0 | +121843 |
| 5standard | 46 | Lagarde, Antoine (1933) | Lost 1-2 | -171826 |
| 6standard | 96 | Guichard, Louis (1548) | Lost 0-2 | -231803 |
| top | average opponent: 1611record: 2-3 | new rating: 1803 | ||
| Grand Prix Lyon 2019 (ELD standard) | starting rating: 1834 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 142 | Negrini, Sebastien (1469) | Won 2-1 | +121846 |
| 3standard | 189 | Body, John (1580) | Draw 1-1 | -51841 |
| 4standard | 106 | Babek, Oskar (1666) | Won 2-0 | +151856 |
| 5standard | 61 | Kampf, Marvin (1555) | Won 2-0 | +121868 |
| 6standard | 34 | Hamann, Andreas (1720) | Lost 0-2 | -201848 |
| 7standard | 88 | Granados, Xavier (1768) | Won 2-0 | +161864 |
| 8standard | 53 | Marty, Toni (1545) | Lost 1-2 | -231841 |
| top | average opponent: 1615record: 4-2-1 | new rating: 1841 | ||
| Grand Prix Utrecht 2019 (ELD limited) | starting rating: 1844 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 411 | Anderson, Graham (1586) | Won 2-1 | +131857 |
| 3sealed | 22 | Gollor, Marcus (1537) | Won 2-0 | +121869 |
| 4sealed | 158 | Kosa, Zoltan (1664) | Lost 0-2 | -211848 |
| 5sealed | 276 | Faehler, Bjoern (1477) | Won 2-0 | +111859 |
| 6sealed | 104 | Susicki, Olaf (1443) | Won 2-1 | +111870 |
| 7sealed | 77 | Litvak, Mark (1705) | Lost 1-2 | -211849 |
| 8sealed | 175 | Brunt, Ramon (1555) | Won 2-1 | +131862 |
| 9sealed | 289 | Tuduri, Ricard (1895) | Lost 0-2 | -181844 |
| 10draft | 120 | Stok, Alex (1742) | Won 2-1 | +161860 |
| 11draft | 100 | Janssen, Guido (1601) | Lost 0-2 | -221838 |
| 12draft | 58 | Schmejkal, Moritz (1798) | Lost 0-2 | -191819 |
| 13draft | 131 | Hulten, Alexander (1775) | Won 2-1 | +171836 |
| 14draft | 74 | Obraz, Jiri (1723) | Won 2-0 | +161852 |
| 15draft | 102 | Melis, Bas (1841) | Lost 0-2 | -181834 |
| top | average opponent: 1667record: 8-6 | new rating: 1834 | ||
| Grand Prix Barcelona 2019 (modern) | starting rating: 1832 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 238 | Mocydlarz, Tomasz (1332) | Won 2-1 | +101842 |
| 4modern | 138 | Baldy, Nicolas (1520) | Lost 1-2 | -241818 |
| 5modern | 241 | Bergelin, Jakob (1675) | Lost 0-2 | -211797 |
| 6modern | 369 | Frey, Alexander (1845) | Won 2-0 | +191816 |
| 7modern | 169 | Gonzalez Rodriguez, Miguel Angel (1706) | Won 2-0 | +161832 |
| 8modern | 207 | De Castro Sanchez, Ivan (1894) | Won 2-1 | +191851 |
| 9modern | 52 | Tedeschi, Davide (1717) | Lost 1-2 | -201831 |
| 10modern | 150 | Leicht, Markus (1552) | Lost 1-2 | -231808 |
| 11modern | 149 | Konig, Noah (1674) | Won 2-1 | +161824 |
| 12modern | 100 | Made, Samuel Thomas (1660) | Lost 1-2 | -211803 |
| 13modern | 131 | Seara, Francisco (1578) | Won 2-0 | +141817 |
| 14modern | 109 | Groth, Johannes (1555) | Won 2-1 | +131830 |
| 15modern | 99 | Llamas, Jordi (1587) | Won 2-1 | +141844 |
| top | average opponent: 1638record: 8-5 | new rating: 1844 | ||
| Grand Prix London 2019 (WAR sealed) | starting rating: 1932 | |||
| round | table | opponent (rating) | result | Δrating |
| A1sealed | 158 | Lovett, Nicholas (1656) | Lost 0-2 | -231909 |
| A2sealed | 246 | Koistinen, Iiro (1591) | Lost 1-2 | -241885 |
| B1sealed | 925 | Mander, Chris (1500) | Won 2-1 | +111896 |
| B2sealed | 906 | Avila Fores, Raul (1926) | Won 2-1 | +191915 |
| B3sealed | 913 | Law, Daniel (1596) | Won 2-0 | +121927 |
| B4sealed | 884 | Cohen, Brendan (1808) | Lost 1-2 | -201907 |
| B5sealed | 927 | Riegler, Moritz (1548) | Lost 0-2 | -241883 |
| C1sealed | 398 | Bonnet, Marc (1512) | Lost 0-2 | -251858 |
| C2sealed | 441 | De Smet, Anton (1359) | Lost 1-2 | -261832 |
| top | average opponent: 1611record: 3-6 | new rating: 1832 | ||
| Grand Prix Strasbourg 2019 (RNA limited) | starting rating: 1875 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 334 | Szadurski, Mateusz (1641) | Won 2-1 | +141889 |
| 4sealed | 128 | Estratti, Samuele (1831) | Lost 0-2 | -191870 |
| 5sealed | 312 | Prevost, Josselin (1537) | Lost 0-2 | -241846 |
| 6sealed | 421 | Verheesen, Rene (1681) | Won 2-1 | +151861 |
| 7sealed | 294 | Uhe, Felix (1645) | Won 2-1 | +141875 |
| 8sealed | 136 | Zhang, Yin (1776) | Won 2-1 | +161891 |
| 9sealed | 65 | van Ravenzwaaij, Don (1876) | Won 2-1 | +181909 |
| 10draft | 53 | Boelens, Jasper (1802) | Won 2-1 | +161925 |
| 11draft | 139 | Uittenbogaard, Kenny (1760) | Won 2-0 | +151940 |
| 12draft | 19 | Buason, Birgir Hrafn (1634) | Lost 1-2 | -241916 |
| 13draft | 11 | Estratti, Samuele (1869) | Lost 0-2 | -181898 |
| 14draft | 11 | Lybaert, Marijn (2021) | Won 2-0 | +201918 |
| 15draft | 11 | Ducenko, Lev (1681) | Won 2-1 | +141932 |
| top | average opponent: 1750record: 9-4 | new rating: 1932 | ||
| Grand Prix Turin 2018 (M19 limited) | starting rating: 1780 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 10 | Bini, Paolo (1708) | Won 2-0 | +171797 |
| 2sealed | 162 | De Luca, Giorgio (1237) | Won 2-0 | +81805 |
| 3sealed | 186 | Lupalo, Kirill (1708) | Won 2-0 | +171822 |
| 4sealed | 97 | Lew, Michael (1884) | Won 2-1 | +191841 |
| 5sealed | 17 | Castellani, Antonio (1732) | Lost 1-2 | -201821 |
| 6sealed | 101 | Calf, David (1983) | Won 2-0 | +211842 |
| 7sealed | 46 | Borrelli, Jacopo (1639) | Won 2-0 | +141856 |
| 8sealed | 13 | Biasio, Stefano (1776) | Won 2-0 | +171873 |
| 9sealed | 29 | Rizzi, Mattia (2025) | Won 2-0 | +201893 |
| 10draft | 70 | Gauthier, Guillaume (1726) | Lost 0-2 | -211872 |
| 11draft | 30 | Crouzet, Cyril (1758) | Lost 0-2 | -201852 |
| 12draft | 4 | Dion, Marc-Antoine (1808) | Won 2-1 | +171869 |
| 13draft | 75 | Pensa, Francesco (1591) | Lost 1-2 | -221847 |
| 14draft | 9 | Pinto, Antonio (1725) | Won 2-1 | +151862 |
| 15draft | 30 | Amico, Alessandro (1551) | Won 2-1 | +131875 |
| top | average opponent: 1723record: 11-4 | new rating: 1875 | ||
| Pro Tour Dominaria (DOM standard) | starting rating: 1721 | |||
| round | table | opponent (rating) | result | Δrating |
| 1draft | 37 | De Sio, Corrado (1761) | Lost 1-2 | -181703 |
| 2draft | 220 | Takahashi, Yuta (2100) | Won 2-0 | +251728 |
| 3draft | 165 | Watsfeldt, Elias (2111) | Lost 0-2 | -111717 |
| 4standard | 137 | Dominguez, Javier (1993) | Won 2-1 | +231740 |
| 5standard | 76 | Hohns, Bryan (1986) | Draw 1-1 | +41744 |
| 6standard | 116 | Dezani, Jeremy (1980) | Lost 1-2 | -141730 |
| 7standard | 152 | Alcon de los Reyes, David (1534) | Won 2-1 | +151745 |
| 8standard | 115 | Cole, Chifley (1636) | Won 2-0 | +161761 |
| 9draft | 22 | Zhang, Meng Qiu (1838) | Won 2-0 | +191780 |
| 10draft | 22 | Tobiasch, Marc (1846) | Lost 1-2 | -171763 |
| 11draft | 22 | Wong, Charles (1903) | Lost 1-2 | -151748 |
| 12standard | 111 | Inoue, Sean (1834) | Won 2-1 | +201768 |
| 13standard | 87 | van der Linden, Leon (1870) | Lost 0-2 | -171751 |
| 14standard | 106 | Klocker, Elias (1945) | Won 2-1 | +221773 |
| 15standard | 86 | Weiser, Daniel (1963) | Lost 1-2 | -151758 |
| 16standard | 101 | Romao, Carlos (1958) | Won 2-0 | +221780 |
| top | average opponent: 1891record: 8-7-1 | new rating: 1780 | ||
| Grand Prix Lyon 2018 (modern) | starting rating: 1499 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 30 | Houssard, Adrien (1500) | Won 2-0 | +181517 |
| 2modern | 241 | Bonaventure, Jean-Baptiste (1490) | Lost 0-2 | -191498 |
| 3modern | 627 | Maurel, Fabien (1606) | Won 2-0 | +201518 |
| 4modern | 555 | Stutzig, Philipp (1508) | Won 2-0 | +181536 |
| 5modern | 408 | Kotlyar, Bogdan (1454) | Won 0-0 | +161552 |
| 6modern | 103 | Ojeda, Ivan (1482) | Won 2-0 | +171569 |
| 7modern | 120 | Nakamura, Shuhei (1959) | Won 2-1 | +251594 |
| 8modern | 89 | Plucinski, Karol (1504) | Won 2-1 | +161610 |
| 9modern | 45 | Calf, David (1734) | Won 2-1 | +201630 |
| 10modern | 17 | Payen, Jeremy (1804) | Lost 1-2 | -141616 |
| 11modern | 20 | Peille, Clement (1816) | Won 2-0 | +211637 |
| 12modern | 12 | Roussel, Mickael (1638) | Won 2-0 | +181655 |
| 13modern | 20 | Vallejo, Raul (1644) | Won 2-1 | +181673 |
| 14modern | 14 | Boussaud, Eliott (2006) | Won 2-1 | +241697 |
| 15modern | 8 | Steiner, Stefan (2020) | Won 2-0 | +241721 |
| top | average opponent: 1678record: 13-2 | new rating: 1721 | ||
| Grand Prix Lyon 2015 (BFZ limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 318 | Dias, Jorge (1500) | Won 2-1 | +181518 |
| 2sealed | 131 | Giraud, Gael (1498) | Won 2-1 | +181536 |
| 3sealed | 39 | Luongo, Kevin (1501) | Lost 1-2 | -191517 |
| 4sealed | 416 | Gross, Alexandre (1481) | Won 2-0 | +171534 |
| 5sealed | 161 | Bellemin, Damien (1542) | Lost 0-2 | -181516 |
| 6sealed | 406 | Villard, Patrick (1520) | Lost 0-2 | -171499 |
| top | average opponent: 1507record: 3-3 | new rating: 1499 | ||