| British Open 2019 | 06/02 18:45 | 7 | Lau, Tsz Kwan v Bonmalais, Sebastien | 3-2 | |
| PSA World Championships | 05/09 11:15 | 7 | Bonmalais, Sebastien v Aly Abou Eleinen | 1-3 | |
| El Gouna International | 04/20 10:45 | 8 | Bonmalais, Sebastien v Soliman, Youssef | 1-3 | |
| El Gouna International | 04/19 10:45 | 7 | Bonmalais, Sebastien v Lau, Tsz Kwan | 3-0 | |
| Australian Open | 03/23 09:00 | 2 | Bonmalais, Sebastien v Soliman, Youssef | 0-3 | |
| Australian Open | 03/22 10:00 | 3 | Bonmalais, Sebastien v Leung, Henry | 3-0 | |
| Australian Open | 03/21 09:45 | 8 | Bonmalais, Sebastien v Noor Zaman | 3-1 | |
| Windy City Open 2020 | 02/24 18:45 | 9 | Asal, Mostafa v Bonmalais, Sebastien | 3-1 | |
| Windy City Open 2020 | 02/22 23:45 | 8 | Bonmalais, Sebastien v Malik, Curtis | 3-0 | |
| Windy City Open 2020 | 02/21 20:45 | 7 | Bonmalais, Sebastien v Serme, Lucas | 3-0 | |
| Houston Open | 02/16 00:00 | 8 | Rodriguez, Miguel v Bonmalais, Sebastien | 3-1 | |
| Houston Open | 02/14 00:15 | 7 | Khan, Faraz v Bonmalais, Sebastien | 0-3 | |
| Pittsburgh Open 2020 | 02/09 23:30 | 3 | Bonmalais, Sebastien v Elshorbagy, Marwan | 2-3 | |
| Pittsburgh Open 2020 | 02/08 22:45 | 8 | Bonmalais, Sebastien v Idrakie, Addeen | 3-0 | |
| JP Morgan Tournament of Champions | 01/17 23:30 | 7 | Bonmalais, Sebastien v Douglas, Andrew | 0-3 | |
| Florida Open | 01/12 23:30 | 3 | Bonmalais, Sebastien v Asal, Mostafa | 0-3 | |
| Florida Open | 01/11 23:30 | 8 | Rodriguez, Miguel v Bonmalais, Sebastien | 0-3 | |
| Florida Open | 01/09 23:30 | 7 | Hammamy, Karim El v Bonmalais, Sebastien | 1-3 | |
| Singapore Squash Open | 11/15 04:45 | 8 | Elshorbagy, Marwan v Bonmalais, Sebastien | 2-1 | |
| Singapore Squash Open | 11/14 04:00 | 7 | Leung, Henry v Bonmalais, Sebastien | 0-3 | |
| Malaysia Squash Cup | 11/08 11:45 | 3 | Ng, Eain Yow v Bonmalais, Sebastien | 3-0 | |
| Malaysia Squash Cup | 11/07 11:15 | 8 | Ben Smith v Bonmalais, Sebastien | 0-3 | |
| QSF 3 Doha | 10/14 14:00 | 2 | Bonmalais, Sebastien v Tamimi, Abdulla Mohd AL | 0-3 | |
| QSF 3 Doha | 10/13 12:00 | 3 | Bonmalais, Sebastien v Salem, Zahed | 3-1 | |
| QSF 3 Doha | 10/12 14:30 | 8 | Bonmalais, Sebastien v Yannick Wilhelmi | 3-0 | |
| Charlottesville Open | 09/15 22:00 | 8 | Vargas, Juan Camilo v Bonmalais, Sebastien | 3-0 | |
| Paris Squash | 08/28 12:15 | 8 | Cardenas, Leonel v Bonmalais, Sebastien | 3-0 | |
| Paris Squash | 08/27 12:15 | 7 | Serme, Lucas v Bonmalais, Sebastien | 2-3 | |
| El Gouna International | 05/27 11:15 | 8 | Bernabeu, Iker Pajares v Bonmalais, Sebastien | 3-0 | |
| El Gouna International | 05/26 13:45 | 7 | Harrity, Todd v Bonmalais, Sebastien | 0-3 |
Sébastien Bonmalais (born 6 February 1998 in Saint-Pierre, Reunion Island) is a French professional squash player. As of August 2018, he was ranked number 100 in the world. He won the 2017 Gibraltar Open and the 2017 Guatemala Open.