Amateur career Before turning professional at the age of 17, Parnasse had two amateur fights. Salahdine faced Amar Akir at 100% Fight 23 - Into The Cage, on July 19 of 2014. He won the fight via TKO in the second round, due to a doctor’s stoppage. He fought Antonin Hardy at 100% Fight 24 - Punishment, on January 31, 2015. He won the round in the second round by TKO, due to punches.
Early career Parnasse faced Jordan Berger in his professional debut, at 100% Fight - Contenders 29, on June 20, 2015. He won the fight in the second round by submission, due to an arm-triangle choke. Parnasse faced Helder Fernandes at 100% Fight - Contenders 30, on October 31 of 2015. He won the fight via submission in the first round, due to a rear-naked choke. Later in the same day, he fought Mathieu Guinard. He won the fight via submission in the first round, due to a rear-naked choke. Parnasse fought William Gomis at 100% Fight 27 - Last Man Standing, on February 4, 2016. He won the fight via unanimous decision.
Exhibition bouts In his exhibition debut, he faced Tenglige at WKFCMC - The King of Fighting 2016: France vs. China, on June 25, 2016. The fight ended in a unanimous draw. As a rematch, Salahdine faced Tenglige for the second time, in a 4-round, three-minute exhibition fight, at WKFCMC - Elite Series 2: Europe vs. China, on November 19, 2016. He won the fight by unanimous decision.
Return to professional fighting Parnasse faced José Verdugo at KFWC - Kung Fu World Cup 2017: Day 2, on January 25, 2015. He won the fight by TKO in the third round, due to punches. Parnasse fought Suleiman Bouhata at 100% Fight 29 - Killer Instinct, on March 17, 2017. He won the fight via unanimous decision. Later ij the day, he faced Morgan Charrière. He won the fight by unanimous decision. Parnasse fought Hyram Rodriguez at EBD 2 - European Beatdown 2, on October 14 of 2017. He won the fight by submission, due to an anaconda choke.
KSW career Parnasse made his
KSW debut against Łukasz Rajewski at
KSW 41, on December 23, 2017. He won the fight by unanimous decision. Salahdine faced former
Featherweight champion
Artur Sowiński at
KSW 43, on April 14, 2018. He won the fight via unanimous decision. Parnasse fought former
Featherweight champion Marcin Wrzosek at
KSW 46, on December 1, 2018. He won the fight by unanimous decision.
First reign as KSW Featherweight Champion Parnasse faced Roman Szymański for the interim
KSW Featherweight Championship, at
KSW 49, on April 27 of 2019. He won the fight via TKO in the second round, by punches. He won the interim
KSW Featherweight Championship in the process. While holding the interim title, concurrent KSW
two-weight division champion
Mateusz Gamrot vacated the featherweight title to focus on the Lightweight division, as he was champion in the weight class. Parnasse was promoted as the undisputed
KSW Featherweight Champion on May 17, 2019. Parnasse was scheduled to make his first title defense against Ivan Buchinger at
KSW 52, on December 7, 2019. He won the fight via unanimous decision.
Losing the Featherweight title Two years later, Parnasse was set to defend his title for the second time, against Daniel Torres at
KSW 58, on January 30, 2021. He suffered his first professional loss, losing the fight via knockout, due to a forearm strike, in the first round. Therefore, he lost the undisputed
KSW Featherweight Championship. Parnasse faced Filip Pejić at
KSW 61, on June 5, 2021. He won the fight by submission, due to a rear-naked choke. Parnasse won the
Submission of the Night award after the pay-per-view concluded.
Second reign as KSW Featherweight Champion Parnasse fought champion Daniel Torres for the
KSW Featherweight Championship, at
KSW 65, on December 18, 2021. He won the fight by unanimous decision, winning back the
KSW Featherweight Championship, and becoming the third two-time champion in KSW history. Parnasse was scheduled to make his first title defense against Daniel Rutkowski, at
KSW 68, on March 19, 2022. He won the fight by submission in the fourth round, via rear-naked choke.
Winning the KSW Lightweight Championship Salahdine was scheduled to move up to the lightweight division and face concurrent
KSW Lightweight Champion Marian Ziółkowski, at
KSW 76, on November 12, 2022. However, Marian was withdrawn due to a knee injury, and was replaced by former
Lightweight title challenger, Sebastian Rajewski for an interim
KSW Lightweight Championship title fight. Parnasse won the fight via submission in the fourth round, due to a rear-naked choke. He became the interim
KSW Lightweight Champion in the process. Salahdine was scheduled for a second time to face concurrent
KSW Lightweight Champion Marian Ziółkowski, at
KSW 83, on June 3, 2023, in a title unification bout. However, Marian was withdrawn due to torn ligaments in his knee, and vacated the title to focus on recovering, minutes before the fight. On the day of the pay-per-view, Parnasse was promoted to the undisputed
KSW Lightweight Champion.
KSW title wins and challenges Parnasse was scheduled to make his second Featherweight title defense against interim
Featherweight champion
Robert Ruchała, at
KSW 85, on August 19, 2023, in a title unification bout. He won the fight via knockout in the fourth round, due to a soccer kick to the body. Parnasse challenged to face current
Welterweight champion
Adrian Bartosiński, at
KSW 89, on December 16, 2023. He moved up in the process. He lost the fight by unanimous decision. Parnasse faced concurrent interim
Lightweight champion,
Valeriu Mircea, at
KSW 93, on April 6, 2024. The bout was held for title unification. He won the fight via first round knockout, by a head kick and punches. Parnasse was scheduled to make his second Lightweight title defense against Wilson Varela at
KSW 101, on December 20, 2024. He won the fight in the second round via TKO, due to punches. Parnasse faced former
Lightweight champion Marian Ziółkowski for his third Lightweight title defense. The bout was held at
KSW 106, on May 10, 2025. He won the fight via TKO in the second round, due to punches. Parnasse was scheduled to face
Marcin Held for his fourth title defense at
KSW 114, on January 17 of 2026. He won the fight by TKO in the second round, due to punches.
Most Valuable Promotions debut Salahdine is scheduled to make his
MVP MMA debut against Kenneth Cross at
MVP MMA: Rousey vs. Carano, on May 16, 2026. As a result of fighting outside of KSW, Parnasse lost his featherweight title on April 6, 2026, which he had not defended since 2023. At the same time, interim champion
Patryk Kaczmarczyk was promoted to undisputed champion of the division. On April 18, 2026, Salahdine was released by KSW. His lightweight title was vacated in the process. ==Boxing career==