As of June 2019, Thorslund is ranked as the world’s fourth best active female super bantamweight by BoxRec. Thorslund made her professional debut against Czech Petra Podráská on 28 February 2015 at the Boxsporthalle Braamkamp in Hamburg. Thorslund won the fight by technical knockout in round 1. On 10 March 2018, Thorslund defeated Alicia Ashley for the WBC interim female super bantamweight title in Struer, Denmark, winning by unanimous decision.
Thorslund won the WBO female super bantamweight title, defeating Mexican Jessica Arreguín by unanimous decision on 25 August 2018 at the Struer Arena.On 19 January 2019, Thorslund made her first defense of the WBO title against Alesia Graf winning by unanimous decision over 10 rounds.
Thorslund is trained by Thomas Madsen and was formerly managed by Sauerland Promotions and is now managed by MTK Global, working independently in close cooperation with TK Promotions.
Dina has previously held the WBC interim female super bantamweight title in 2018. At regional level, she held the EBU European female super bantamweight title in 2017. She now holds the WBO World Super Bantamweight Title