Lerdsila Chumpairtour

Manop Srirupi
Manop Srirupi
Born	October 22, 1981 (age 45); Thailand
Other names	Lerdsila Muaythai Iyarin
Occupation(s)	Muay Thai practitioner, kickboxer
Years active	Until at least 2021 (retired after)
Known for	Multiple world championships in Muay Thai; Rajadamnern Stadium titles in three weight divisions

Manop Srirupi (; born October 22, 1981), widely recognized in the fighting world as Lerdsila Muaythai Iyarin (), is a former professional Thai Muay Thai practitioner and kickboxer. Throughout his career, he earned multiple world championships from prestigious organizations including the World Muaythai Council (WMC), WBC, WLF, WPMF, and WCK. Additionally, he claimed championship titles across three weight divisions at the esteemed Rajadamnern Stadium.

Biography

Starting his Muay Thai journey at just seven years old under his father’s guidance, Lerdsila had his inaugural bout in the same year. By age twelve, he relocated to Bangkok to advance his professional fighting career, joining Jocky Gym—an establishment famous for cultivating elite fighters such as Saenchai and Somrak Khamsing. He fought extensively at the renowned arenas of Lumpinee and Rajadamnern Stadium, where he secured Rajadamnern Muay Thai World Titles in three separate weight categories. In 2015, he shifted his training base to Phuket Top Team.

Belonging to the Khon Isan ethnic group, Lerdsila’s career trajectory showcases deliberate gym changes aimed at sharpening his competitive skills within the Muay Thai industry.

Fighting style

Lerdsila’s fighting approach was honed at Jocky Gym, focusing on rapidity, agility, and technical precision. His style is an amalgamation of traditional Muay Thai infused with techniques drawn from Taekwondo, Karate, and Boxing. Nicknamed "The Eel on a skateboard" for his remarkable evasiveness, he is adept at employing the Teep kick combined with nimble head movements to neutralize opponents’ strikes. His combat philosophy centers on enjoying the fight and unsettling adversaries through strategic taunting rather than concentrating solely on victory. A strong emphasis on mutual respect underpins his entertaining yet tactical style.

Thailand

Between 1999 and 2010, Lerdsila competed regularly at Rajadamnern and Lumpinee Stadiums, overcoming prominent fighters such as Watcharachai Kaewsamrit and Anuwat Kaewsamrit. A pinnacle moment in his career was securing the 2004 Rajadamnern Stadium Super Bantamweight (122 lbs) championship by defeating Pinsinchai.

K-1

In 2012, he put his WCK Muaythai Lightweight (135 lbs) World title on the line against Gabriel Varga during the K-1 World Grand Prix Los Angeles but was defeated by decision.

China

Following a loss to Deng Zeqi, Lerdsila rebounded by winning two subsequent rematches against him for the WLF Muaythai Lightweight World title. From 2015 through 2017, he recorded significant victories over competitors including Wei Rui, Wei Ninghui, Wang Wanben, Zheng Kai, Tang Yao, and Kang En—the latter triumph achieved after an extra round at the 2017 Hero Legend event. After losing again to Deng Zeqi in 2015 at Wu Lin Feng & WCK Muaythai: China vs USA, Lerdsila embarked on an eight-fight stretch resulting in seven wins and one draw against Liu Wei.

Lion Fight

In 2017, he secured a knockout win via left high kick against Jacob Hebeisen at Lion Fight 36. The following year at Lion Fight 40, he earned a decision victory over Alexi Serepisos.

ONE Championship

Lerdsila made his ONE Championship debut on June 23, 2018, at ONE Championship: Pinnacle of Power by narrowly defeating Sok Thy through split decision. He met Sok Thy again on November 17, 2018, at ONE Championship: Warrior's Dream and won decisively by unanimous decision.

On April 12, 2019, Lerdsila triumphed over Kohei "Momotaro" Kodera by unanimous decision at ONE Championship: Roots of Honor. Later that year on August 16 at ONE Championship: Dreams of Gold, he faced Michael Savvas; Savvas was defeated by TKO following an awkward fall.

Lerdsila experienced his first defeat in ONE Championship on December 9, 2019, when Elias Mahmoudi bested him by unanimous decision at ONE Championship: Mark Of Greatness.

Final Bout

At Wu Lin Feng 2021: World Contender League 7th Stage, Lerdsila was defeated by Huang Shuailu via decision.

Activities After Retirement

Following his retirement from active competition, Lerdsila has expressed his intention to maintain involvement in Muay Thai. His future plans include establishing a training facility dedicated to developing upcoming fighters.

Achievements and Honors

Muay Thai

Suk Muay Femur
- 2021 Suk Muay Femur Super Lightweight (140 lbs) Titleholder
Hero Legends
- 2017 Hero Legends Bantamweight World Titleholder
Lion Fight
- 2017 Lion Fight Lightweight (135 lbs) World Titleholder
Wu Lin Feng (WLF)
- 2013 WLF Muaythai Lightweight (135 lbs) World Titleholder
WCK Muaythai
- 2011 WCK Muaythai Lightweight (135 lbs) World Titleholder
World Muaythai Council (WMC)
- Three-time WMC Lightweight (135 lbs) World Titleholder
World Professional Muaythai Federation (WPMF)
- WPMF Lightweight (135 lbs) World Titleholder
Rajadamnern Stadium
- 2004 Rajadamnern Stadium Super Bantamweight (122 lbs) Titleholder
- 2003 Rajadamnern Stadium Bantamweight (118 lbs) Titleholder
- 2002 Rajadamnern Stadium Super Flyweight (115 lbs) Titleholder
World Games
- 2013 World Games Silver Medalist in -63.5 kg Division

Competitive Record in Muay Thai and Kickboxing

|- style="background:#;" | 2025-09-06 ||||align=left| Jason Somchay || Stand Up Fight Series || St. Charles, United States || || ||

|- style="background:#;" | 2025-08-23 ||||align=left| Malaipet Sasiprapa || Infinity Fight Night || Southfield, United States || || ||

|- style="background:#fbb;" | 2021-11-27 || Defeat|| align=left| Huang Shuailu || Wu Lin Feng 2021: World Contender League 7th Stage || Zhengzhou, China ||Ext.R Decision || 4 ||3:00

|- style="background:#cfc;" | 2021-07-11|| Victory||align=left| Tyson Harrison|| Suk Muay Femur || Pattaya, Thailand || Decision || 5 || 3:00 |- ! style=background:white colspan=9 |

|- style="background:#fbb;" | 2019-12-09|| Defeat||align=left| Elias Mahmoudi || ONE Championship: Mark Of Greatness || Kuala Lumpur, Malaysia || Unanimous Decision || 3 || 3:00

|- style="background:#cfc;" | 2019-08-16|| Victory||align=left| Savvas Michael|| ONE Championship: Dreams of Gold || Bangkok, Thailand || TKO (Arm Injury/Thrown) || 2 || 0:40

|- style="background:#cfc;" | 2019-04-12|| Win||align=left| Momotaro|| ONE Championship: Roots of Honor || Manila, Philippines || Unanimous Decision || 3 || 3:00

|- style="background:#cfc;" | 2018-11-17|| Win||align=left| Sok Thy|| ONE Championship: Warrior's Dream || Jakarta, Indonesia || Unanimous Decision || 3 || 3:00

|- style="background:#cfc;" | 2018-06-23 || Win||align=left| Sok Thy|| ONE Championship: Pinnacle of Power || Beijing, China || Split Decision || 3 || 3:00

|- style="background:#cfc;" | 2018-02-03 || Win||align=left| Alexi Serepisos||Lion Fight 40|| United States || Unanimous Decision || 5 || 3:00

|- bgcolor="#CCFFCC" | 2017-12-31 || Win || align=left| Kang En || Hero Legend 2017 || China || Ext.R Decision || 4 || 3:00 |- ! style=background:white colspan=9 |

|- bgcolor="#CCFFCC" | 2017-09-09 || Win || align=left| Chen Wanhai || Hero Legend 2017 || Tai'an, China || TKO (Technical Knockout) || 2 ||

|- style="background:#cfc;" | 2017-06-25 || Victory||align=left| Zheng Kai|| Hero Legends|| China || Unanimous Decision || 3 || 3:00

|- style="background:#cfc;" | 2017-04-28 || Win by KO||align=left| Jacob Hebeisen||Lion Fight 36|| United States || KO (Left High Kick) || 2 ||

|- style="background:#c5d2ea;" | 2016-10-02 || Draw||align=left| Liu Wei|| Hero Legends|| China || Draw by Decision || 3 || 3:00

|- style="background:#cfc;" |2016-09-11|| Victory||align=left| Liu Lianfeng|| Hero Legends|| China|| Unanimous Decision ||3 ||3:00

|- style="background:#cfc;" |2016-07-09|| Win||align=left| Cui Jianhui|| Hero Legends|| China || Unanimous Decision ||3 ||3:00

|- style="background:#cfc;" |2016-01-16 || Win ||align=left| Tang Yao || Hero Legends || China || Unanimous Decision ||3 ||3:00

|- style="background:#cfc;" |2015-12-13 || Victory ||align=left||| Italy Garraffo WBK9 China Unanimous Decision

|- style="background:#fbb;"

|2015-11-13 |Loss |align=left||| CHN Deng Zeqi | Wu Lin Feng & WCK Muaythai: China vs USA | Las Vegas, USA | Decision |3 |3:00

|- style="background:#cfc;" 
|2015-04-26 |Win |align=left||| CHN Wei Ninghui | Kunlun Fight23 | Changsha, China | Unanimous Decision |3 |3:00

|- style="background:#cfc;" 
|2015-01-03 |Win |align=left||| CHN Wang Wanben | Kunlun Fight15 &16 | Nanjing, China | Unanimous Decision |3 |3:00

|- style="background:#fbb;" 
|2014-11-16 |Loss |align=left||| CHN Li Ning | Kunlun Fight13 | Hohhot, China | Unanimous Decision |3 |3:00

|- style="background:#cfc;" 
|2014-02-16 |Win |align=left||| CHN Wei Rui | Kunlun Fight2 | Zhengzhou, China | Unanimous Decision |3 |3:00

|- style="background:#cfc;" 
|2014-01-25 |Win |align=left||| CHN Deng Zeqi | Kunlun Fight1 | Pattaya, Thailand | Unanimous Decision |

! style=background:white colspan=9 |

|- style="background:#cfc;" 
|2013-11-02 |Win |align=left||| CHN Deng Zeqi		|

WCK Muay Thai vs. Wulinfeng Las Vegas, Nevada Unanimous Decision 5 3:00

! style=background:white colspan=9 |

Captured WLF Muaythai Lightweight (135 lbs) World Championship.

|- style="background:#fbb;" 
|2012–11–14	 Loss	 align = left	 CHN Deng Zeqi	 WCK Muay Thai "Wulinfeng Spectacular"	 Las Vegas, Nevada	Split Decision	5	3:00

|- style="background:#fbb;" 
|2012–09–08	 Loss	 align = left	CAN Gabriel Varga	K–1 World Grand Prix Los Angeles	 Los Angeles, California	Unanimous Decision	3	3:00

! style = background:white colspan =9 |

Relinquished WCK Muaythai Lightweight (135 lbs) World title.

Additional bouts include significant victories and defeats at Rajadamnern and Lumpinee Stadiums in Thailand spanning from early career stages to recent competitions.

|- colspan =9|

Legend: Win Loss Draw/No contest Notes

|-style = background #fbb|

  date =20131023
  result =Loss
  opponent= Igor Liubchenko
  event =2013 World Combat Games Final
  location = Bangkok Thailand
  method =Decision

!style = background white colspan =9|

Earned Silver Medal in the -63.5kg division at the Amateur World Combat Games.

|-style = background #cfc|

  date =20131021
  result =Win
  opponent= Sofiane Bougossa
  event =2013 World Combat Games
  location = Bangkok Thailand
  method =Decision

|-colspan =9|