Su Mudaerji (; ; born January 20, 1996), sometimes written as Sumudaerji, is a Chinese professional mixed martial artist. He currently competes in the Flyweight and Bantamweight divisions of the Ultimate Fighting Championship (UFC).
In his childhood, Sumudaerji used to herd cattle in the mountains. He was born with a passion for sports. When he was 14 years old, Sumudaerji joined the well-known Enbo Fight Club in Chengdu. He started practicing San Da in 2010 and won the second place in the Sichuan Youth San Da Championship. From 2014 to 2015, he was selected to study in the Sichuan San Da team and then transitioned into MMA. Starting his career in 2016, Mudaerji fought mostly for the Wu Lin Feng promotion, compiling an 11âÂÂ3 record.
Mudaerji made his UFC debut against Louis Smolka at UFC Fight Night 141 on November 24, 2018. He lost the fight via submission in round two.
Mudaerji next faced Andre Soukhamthath on August 31, 2019, at UFC Fight Night 157. He won the fight via unanimous decision.
Mudaerji faced Malcolm Gordon on November 28, 2020, at UFC on ESPN 18. He won the fight via knockout in round one. He earned a Performance of the Night bonus for the win.
Replacing Jeff Molina, Mudaerji faced Zarrukh Adashev on January 20, 2021, at UFC on ESPN 20. He won the fight via unanimous decision.
Mudaerji was scheduled to face Tim Elliott on June 26, 2021, at UFC Fight Night 190. However, Mudaerji pulled out due to a knee injury.
Mudaerji was scheduled to face Manel Kape on April 23, 2022, at UFC Fight Night 205. However, just three days before the event, Kape withdrew for personal reasons and the bout was scrapped.
Mudaerji faced Matt Schnell on July 16, 2022, at UFC on ABC 3. Despite a triangle attempt in the first round, Mudaerji lost the bout via technical submission due to a triangle choke in the second round. This win earned both fighters the Fight of the Night bonus award.
Mudaerji was scheduled to face Allan Nascimento on December 9, 2023, at UFC Fight Night 233. However, Nascimento withdrew from the fight due to injury and was replaced by Tim Elliott. He lost the fight via arm-triangle choke in round one.
Mudaerji was scheduled to face Joshua Van on June 1, 2024 at UFC 302. However, for undisclosed reasons, Mudaerji was pulled from the event and Van was re-scheduled for another event as a result.
Mudaerji faced Charles Johnson on October 19, 2024 at UFC Fight Night 245. He lost the fight by unanimous decision.
Mudaerji faced Mitch Raposo on April 12, 2025 at UFC 314. He won the fight by split decision.
Mudaerji faced Kevin Borjas on August 23, 2025 at UFC Fight Night 257. He won the fight by unanimous decision.
Mudaerji faced Jesús Santos Aguilar on March 7, 2026, at UFC 326. He won the fight by unanimous decision.
Mudaerji is scheduled to face Alex Perez on May 30, 2026 at UFC Fight Night 277.
Mudaerji is the first UFC fighter of Tibetan ethnicity.
Su Mu who is one of the main characters in the film Never Say Never is based on Mudaerji.
|- |Win |align=center|19âÂÂ7 |Jesús Santos Aguilar |Decision (unanimous) |UFC 326 | |align=center|3 |align=center|5:00 |Las Vegas, Nevada, United States | |- |Win |align=center|18âÂÂ7 |Kevin Borjas |Decision (unanimous) | | |align=center|3 |align=center|5:00 |Shanghai, China | |- |Win |align=center|17âÂÂ7 |Mitch Raposo |Decision (split) |UFC 314 | |align=center|3 |align=center|5:00 |Miami, Florida, United States | |- |Loss |align=center|16âÂÂ7 | Charles Johnson |Decision (unanimous) | | |align=center|3 |align=center|5:00 |Las Vegas, Nevada, United States | |- |Loss |align=center|16âÂÂ6 |Tim Elliott |Technical Submission (arm-triangle choke) | | |align=center|1 |align=center|4:02 |Las Vegas, Nevada, United States | |- |Loss |align=center|16âÂÂ5 |Matt Schnell |Technical Submission (triangle choke) | | |align=center|2 |align=center|4:24 |Elmont, New York, United States | |- |Win |align=center|16âÂÂ4 |Zarrukh Adashev |Decision (unanimous) | | |align=center|3 |align=center|5:00 |Abu Dhabi, United Arab Emirates | |- |Win |align=center|15âÂÂ4 |Malcolm Gordon |KO (punches) | | |align=center|1 |align=center|0:44 |Las Vegas, Nevada, United States | |- |Win |align=center|14âÂÂ4 |Andre Soukhamthath |Decision (unanimous) | | |align=center|3 |align=center|5:00 |Shenzhen, China | |- |Loss |align=center|13âÂÂ4 |Louis Smolka |Submission (armbar) | | |align=center|2 |align=center|2:07 |Beijing, China | |- |Loss |align=center|13âÂÂ3 |Ma Hao Bin |Technical Submission (rear-naked choke) |WLF: W.A.R.S. 28 | |align=center|2 |align=center|3:57 |Zhengzhou, China | |- |Win |align=center|13âÂÂ2 |Yusei Saiton |KO (punches) |ABA FC: Hongyuan | |align=center|1 |align=center|0:53 |Hongyuan County, China | |- |Win |align=center|12âÂÂ2 |Temirulan Bamadaliev |TKO (punches) |WLF: W.A.R.S. 25 | |align=center|1 |align=center|2:14 |Zhengzhou, China | |- | Win | align=center| 11âÂÂ2 | Zelimkhan Makaev | KO (spinning back kick) | WLF: W.A.R.S. 23 | | align=center| 1 | align=center| 4:01 | Zhengzhou, China | |- | Win | align=center|10âÂÂ2 | Bidzina Gavashelishvili | KO (flying knee) | WLF: W.A.R.S. 22 | | align=center|1 | align=center|2:36 | Kaifeng, China | |- | Loss | align=center|9âÂÂ2 | Abdulla Aliev | Submission (rear-naked choke) | WLF: W.A.R.S. 21 | | align=center|3 | align=center|3:16 | Zhengzhou, China | |- | Win | align=center|9âÂÂ1 | Kirill | KO (punch to the body) | IPFC: YunFeng Showdown 7 | | align=center|1 | align=center|3:19 | Laizhou, China | |- | Win | align=center|8âÂÂ1 | Ryota Kobayashi | TKO (punches) | WLF: W.A.R.S. 18 | | align=center|1 | align=center|1:19 | Maerkang, China | |- | Win | align=center|7âÂÂ1 | Jomar Manlangit | KO (punch to the body) | WLF: W.A.R.S. 17 | | align=center|2 | align=center|1:20 | Zhengzhou, China | |- | Win | align=center| 6âÂÂ1 | Liu Pengshuai | KO (punches) | Chin Woo Men: 2016-2017 Season, Stage 6 | | align=center|1 | align=center|4:28 | Guangzhou, China | |- | Win | align=center| 5âÂÂ1 | Gao Junye | KO (punches) | WLF World Championship | |align=Center|1 |align=center|3:38 |Zhengzhou, China | |- | Win | align=center| 4âÂÂ1 | Teimur Ragimov | Submission (rear-naked choke) | WLF: E.P.I.C. 8 | | align=center| 3 | align=center| 1:15 | Zhengzhou, China | |- | Win | align=center| 3âÂÂ1 | Isaias Celiva | TKO (doctor stoppage) | WLF: E.P.I.C. 5 | | align=center| 2 | align=center| 5:00 | Zhengzhou, China | |- | Win | align=center| 2âÂÂ1 | Leonid Malozemov | KO (head kick) | WLF: E.P.I.C. 3 | | align=center| 2 | align=center| 0:06 | Zhengzhou, China | |- | Loss | align=center| 1âÂÂ1 | Yusuke Uehara | Submission (straight armbar) | WLF: E.P.I.C. 2 | | align=center| 1 | align=center|2:41 | Zhengzhou, China | |- | Win | align=center| 1âÂÂ0 | Lim Seung-heon | TKO (doctor stoppage) | WLF: E.P.I.C. 1 | | align=center| 1 | align=center| 2:44 | Zhengzhou, China |