Early career Starting his career in 2013, Heili compiled a 12–7–1 record in various Asian organizations, most notably fighting in
Road FC, which one of the fights being against future Rizin champ,
Kai Asakura. Asakura won the fight after 29 seconds, hitting Heili with a short left hook, followed by a knee strike. Asakura suffered his first career loss to Je Hoon Moon during Road FC 39, losing by way of TKO.
Ultimate Fighting Championship Alatang made his debut on August 31, 2019, at
UFC Fight Night: Andrade vs. Zhang against
Danaa Batgerel. He won the fight via unanimous decision. This fight earned him the
Fight of the Night award. Alateng faced
Ryan Benoit on December 21, 2019, at
UFC on ESPN+ 23. He won the fight via split decision. Alateng was expected to face
Casey Kenney on September 27, 2020 at
UFC 253. However, for unknown reasons, it was moved to
UFC on ESPN: Holm vs. Aldana on October 4, 2020. He lost the fight via unanimous decision. Alateng faced
Gustavo Lopez on September 18, 2021, at
UFC Fight Night 192. The fight ended up with a draw. Alateng faced
Kevin Croom at
UFC on ESPN 34 on April 16, 2022. He won the fight via technical knockout early into the first round. Alateng faced Chad Anheilger on September 10, 2022, at
UFC 279. He won the fight via unanimous decision. Alateng was scheduled to face
Rani Yahya on October 14, 2023, at
UFC Fight Night 230. However, Yahya withdrew from the bout for undisclosed reasons. In turn, Alateng replaced
Montel Jackson to face
Chris Gutiérrez at the same event. He lost the fight via unanimous decision. Alateng was scheduled to face Victor Hugo on April 6, 2024 at
UFC Fight Night 240. However, Alateng pulled out due to illness on fight week and promotional newcomer Pedro Falcão stepped in as a replacement on three days' notice. Alateng faced Kleydson Rodrigues on May 18, 2024, at
UFC Fight Night 241. He won the fight by unanimous decision. Alateng faced Da'Mon Blackshear on April 26, 2025 at
UFC on ESPN 66. He lost the fight by unanimous decision. ==Championships and accomplishments==