Harley Collison losses
Over 3 years as a professional, Harley Collison has compiled a 3-10-2 (0) record, fighting across three weight classes. He has ten losses.
10. Harley Collison loses to Stephen Clarke via points decision
On November 7, 2026 Harley Collison faced Stephen Clarke in a super middleweight bout. Collison was 33 years old with a record of 3-9-2, and Clarke was 0 with a record of 0-0. Collison was on a 8-fight losing streak. Collison lost via points decision. Went the distance with Clarke.
9. Harley Collison loses to Chris Mulunda via points decision
On October 24, 2026 Harley Collison faced Chris Mulunda in a super middleweight bout. Collison was 33 years old with a record of 3-8-2, and Mulunda was 0 with a record of 0-0. Collison was on a 7-fight losing streak. Collison lost via points decision. Went the distance with Mulunda.
8. Harley Collison loses to Ben Bartlett via KO
On September 12, 2026 Harley Collison faced Ben Bartlett in a super middleweight bout. Collison was 33 years old with a record of 3-7-2, and Bartlett was 0 with a record of 0-0. Collison was on a 6-fight losing streak. Bartlett stopped Collison via TKO in the 1st round.
7. Harley Collison loses to Christopher Roberts via points decision
On July 24, 2026 Harley Collison faced Christopher Roberts in a super middleweight bout. Collison was 33 years old with a record of 3-6-2, and Roberts was 0 with a record of 0-0. Collison was on a 5-fight losing streak. Collison lost via points decision. Went the distance with Roberts.
6. Harley Collison loses to Marc Haughan via KO
On June 13, 2026 Harley Collison faced Marc Haughan in a middleweight bout. Collison was 33 years old with a record of 3-5-2, and Haughan was 0 with a record of 0-0. Collison was on a 4-fight losing streak. Haughan stopped Collison via TKO in the 4th round. Lasted into the 4th round.
5. Harley Collison loses to Tiago Osorio Muxanga via KO
On November 30, 2025 Harley Collison faced Tiago Osorio Muxanga in a middleweight bout. Collison was 32 years old with a record of 3-4-2, and Muxanga was 0 with a record of 0-0. Collison was on a 3-fight losing streak. Muxanga stopped Collison via TKO in the 5th round.
4. Harley Collison loses to Ted Jackson via points decision
On September 20, 2025 Harley Collison faced Ted Jackson in a super middleweight bout. Collison was 32 years old with a record of 3-3-2, and Jackson was 0 with a record of 0-0. Collison was on a 2-fight losing streak. Collison lost via points decision. Went the distance with Jackson.
3. Harley Collison loses to Red Johnson via points decision
On June 7, 2025 Harley Collison faced Red Johnson in a super middleweight bout. Collison was 32 years old with a record of 3-2-2, and Johnson was 0 with a record of 0-0. Collison was coming off a loss. Collison lost via points decision. Went the distance with Johnson.
2. Harley Collison loses to CaoimhĂn Agyarko via points decision
On March 30, 2025 Harley Collison faced CaoimhĂn Agyarko in a middleweight bout. Collison was 31 years old with a record of 3-1-2, and Agyarko was 28 with a record of 15-0. Collison was coming off a win and Agyarko was on an undefeated 15-fight winning streak. Collison lost via points decision. Went the distance with Agyarko.
1. Harley Collison loses to Morgan Sellamuthu via points decision
On September 23, 2023 Harley Collison faced Morgan Sellamuthu in a light heavyweight bout. Collison was 30 years old with a record of 1-0-1, and Sellamuthu was 0 with a record of 0-0. Collison lost via points decision. Went the distance with Sellamuthu.