Halil ðbrahim Demiraslan, also known as ðbo Aslan (born 23 April 1996), is a Turkish professional mixed martial artist. He currently competes in the Light Heavyweight division of the Ultimate Fighting Championship (UFC).
Halil ðbrahim Demiraslan was born on April 23, 1996 in Akçaören village of Altunhisar. When he was only seven years old, his family moved to Austria because of his father's job. At the age of thirteen, after attempting to play football and not enjoying it, he turned to martial arts. His interests led him to first take part in kickboxing, followed by wrestling and Brazilian jiu-jitsu.
Aslan faced Paulo Renato Jr. in season seven of Dana White's Contender Series on August 15, 2023. He won the fight via technical knockout in the first round, which earned Aslan a spot on the UFC roster.
Aslan faced Anton Turkalj in a rematch on March 30, 2024 at UFC on ESPN 54. He won the fight via technical knockout in round three.
In his second fight, Aslan faced Rafael Cerqueira on October 26, 2024 at UFC 308. He won the fight via technical knockout in the first round.
Aslan faced Ion CuÃÂelaba on February 22, 2025 at UFC Fight Night 252. He lost the fight via an arm-triangle choke submission in the first round.
Aslan faced Billy Elekana on July 26, 2025 at UFC on ABC 9. He lost the fight by unanimous decision.
Aslan was scheduled to face Junior Tafa on September 28, 2025 at UFC Fight Night 260. However, the bout was canceled due to an injury with Tafa.
Aslan faced Iwo Baraniewski on December 6, 2025 at UFC 323. He lost the fight by first round knockout.
|- |Loss |align=center|14âÂÂ4 |Iwo Baraniewski |KO (punches) |UFC 323 | |align=center|1 |align=center|1:29 |Las Vegas, Nevada, United States | |- |Loss |align=center|14âÂÂ3 |Billy Elekana |Decision (unanimous) | | |align=center|3 |align=center|5:00 |Abu Dhabi, United Arab Emirates | |- |Loss |align=center|14âÂÂ2 |Ion CuÃÂelaba |Submission (arm-triangle choke) | | |align=center|1 |align=center|2:51 |Seattle, Washington, United States | |- |Win |align=center|14âÂÂ1 |Raffael Cerqueira |TKO (punches) |UFC 308 | |align=center|1 |align=center|0:51 |Abu Dhabi, United Arab Emirates | |- |Win |align=center|13âÂÂ1 |Anton Turkalj |TKO (punch) | | |align=center|3 |align=center|1:32 |Atlantic City, New Jersey, United States | |- |Win |align=center|12âÂÂ1 |Paulo Renato Jr. |TKO (punches) |Dana White's Contender Series 58 | |align=center|1 |align=center|2:22 |Las Vegas, Nevada, United States | |- |Win |align=center|11âÂÂ1 |Giorgi Khubejashvili |TKO (leg kick and punches) |Vendetta Fight Nights 33 | |align=center|1 |align=center|1:30 |Vienna, Austria | |- |Win |align=center|10âÂÂ1 |Amilcar Alves |TKO (punches) |Sparta CF 1 | |align=center|1 |align=center|1:45 |Vienna, Austria | |- |Win |align=center|9âÂÂ1 |Felix Polianidis |TKO (punches) |Tosan Fight Night 13 | |align=center|1 |align=center|0:20 |Vienna, Austria | |- |Loss |align=center|8âÂÂ1 |Anton Turkalj |Submission (rear-naked choke) |Brave CF 40 | |align=center|2 |align=center|1:57 |Stockholm, Sweden | |- |Win |align=center|8âÂÂ0 |Ivan ViÃÂià|TKO (punches) |Vendetta Fight Nights 18 | |align=center|1 |align=center|0:00 |Vienna, Austria | |-
|Win |align=center|7âÂÂ0 |Robert Valentin |TKO (punches) |Austrian Fight Challenge 8 | |align=center|3 |align=center|1:36 |Vienna, Austria | |-
|Win |align=center|6âÂÂ0 |Bart Cillessen |TKO (punches) |Austrian Fight Challenge 7 | |align=center|1 |align=center|0:35 |Vienna, Austria | |-
|Win |align=center|5âÂÂ0 |Milan Stojadinovic |KO (punch) |Austrian Fight Challenge 6 | |align=center|1 |align=center|2:35 |Vienna, Austria | |-
|Win |align=center|4âÂÂ0 |Sasa Mihajlovic |TKO (punches) |Austrian Fight Challenge: New Talents 3 | |align=center|1 |align=center|N/A |Vienna, Austria | |-
|Win |align=center|3âÂÂ0 |Igor Kantar |TKO (punches) |Austrian Fight Challenge: New Talents 2 | |align=center|1 |align=center|N/A |Vienna, Austria | |-
|Win |align=center|2âÂÂ0 |Milan Bodonji |TKO (punches) |Austrian Fight Challenge 5 | |align=center|1 |align=center|N/A |Vienna, Austria | |-
|Win |align=center|1âÂÂ0 |Mattia Calore |TKO (punches) |Austrian Fight Challenge: New Talents 1 | |align=center|1 |align=center|3:27 |Vienna, Austria | |-