Petpanomrung Kiatmuu9 (เพชรพนมรุ้ง เกียรติหมู่เก้า, pronounced "Kiatmuukao"; born 26 May 1995) is a Muay Thai fighter and kickboxer from Thailand.
Hailing from Buriram in the northeast of Thailand, Petpanomrung is from the same Muay Thai gym of multiple Lumpinee Stadium champion Singdam Kiatmuu9.
The pair previously fought a year prior, at Glory 41: Holland, with van Roosmalen winning a majority decision in their first encounter.
[24] He was more convincing in their second meeting, as he won the fight by unanimous decision, with all five judges scoring the bout 50–45 in his favor.
[27] Petpanomrung made his second title defense against Anvar Boynazarov at Glory 67: Orlando on 5 July 2019.
[28] Petpanomrung was expected to make his third title defense against Aleksei Ulianov at Glory 72: Chicago on 23 November 2019.
Ulianov withdrew from the bout on 24 June, due to visa issues, and was replaced with Kevin VanNostrand.
[30][31] Petpanomrung made his fourth title defense against Serhiy Adamchuk at Glory 75: Utrecht on 29 February 2020, whom he had faced and beaten on two previous occasions.
[35] He was later removed from the event as a result of being unable to Japan due to safety protocols imposed to combat the COVID-19 pandemic.
[47] Petpanomrung made his seventh title defense against promotional newcomer David Mejia at Glory 89 on 7 October 2023.
[53] Petpanomrung faced Taiju Shiratori in the quarterfinals of the GLORY RISE Featherweight Grand Prix, held on December 21, 2024, in Chiba, Japan.
[55] In the semifinals of the one-day tournament, Petpanomrung faced the one-time RISE Middleweight champion Lee Sung-hyun.
[56] Petpanomrung captured the tournament title with a split decision triumph over Miguel Trindade in the finals.