# Sirimongkol Singmanasak

Sirimongkol Singmanasak (Thai: ศิริมงคล สิงห์มนัสศักดิ์; born 2 March 1977) is a Thai professional boxer, bare-knuckle boxer and kickboxer. He is a world champion in two weight classes, having held the WBC bantamweight title in 1997 and the WBC super-featherweight title from 2002 to 2003. His other names were Sirimongkol Nakhon Thong Park View (ศิริมงคล นครทองปาร์ควิว), Sirimongkol Singwancha (ศิริมงคล สิงห์วังชา), Sirimongkol Nakornloung (ศิริมงคล นครหลวงโปรโมชั่น), and Sirimongkhon Iamthuam (ศิริมงคล เอี่ยมท้วม).

## Biography and boxing career

Sirimongkol was born into a family closely connected to Muay Thai, with his father owning the "Singmanasak Boxing Gym" (ค่ายมวยสิงห์มนัสศักดิ์) and his brother fighting under the name "Manopchai Singmanasak" (มานพชัย สิงห์มนัสศักดิ์). His early interests in the Thai folk theatre form Likay were curtailed by his father, who encouraged him to pursue boxing instead.

### WBC world champion

Starting as an amateur in high school, Sirimongkol quickly ascended in professional boxing. He claimed the WBU Super flyweight and Bantamweight titles in 1995 and became the WBC Bantamweight Champion in August 1996 at just 19 years old, defeating interim champion José Luis Bueno in Phitsanulok, Thailand. His title shot was earned through a victory over veteran Thai boxer Thanomsak Sithbaobay.
Sirimongkol successfully defended his WBC bantamweight title three times. However, his reign ended in November 1997 when he lost to former Japanese world champion Joichiro Tatsuyoshi in Osaka, Japan. He rebounded strongly, capturing the WBC Super featherweight title in 2002 with a knockout win over Kengo Nagashima, but lost the title a year later to Jesús Chávez.

### Post-world title reign

In May 2007, Sirimongkol won the Asian Boxing Council (ABCO) super featherweight title. He then won the PABA light welterweight title in December 2007 before defending the title once in May 2008.

### Arrest and later career

In 2009, Sirimongkol's career took a turn following his arrest for possession of Ya ba. During his incarceration, he taught boxing to fellow inmates and continued to compete, winning the WBC Asia Continental Welterweight title. He successfully defended the WBC Asia Continental belt five times from 2012 to 2014. He was pardoned four years into a 20-year sentence.
In October 2014, Sirimongkol defeated Dan Nazareno Jr. to win the WBO Asia Pacific junior middleweight title. He defended the WBO Asia Pacific belt twice in April 2015 and September 2015.
His 51-fight winning streak was finally broken in 2017 by Uzbek boxer Azizbek Abdugofurov in an unsuccessful bid for the WBC Asia middleweight title, marking his first defeat in 14 years.
After winning the UBO Inter-Continental light middleweight title in May 2017 and the Thai light heavyweight title September 2018, Sirimongkol announced his first retirement from boxing on September 20, 2018. He came out of retirement for two more fights, including unsuccessfully challenging Teerachai Sithmorseng for the WBA Asia light heavyweight title in April 2021, before retiring once again.

### Bare-knuckle boxing

Sirimongkol made his bare-knuckle boxing debut at BKFC Thailand 1: The Game Changer on December 18, 2021, fighting under his real name of "Sirimongkol Iamthuam". His opponent was Iranian Brazilian jiu-jitsu and full contact karate practitioner Reza Goodary. Despite standing 168 cm and Goodary standing 195 cm, Sirimongkol controlled the majority of the fight and scored a knockdown to win via split decision.

#### BKFC Thailand Champion

Sirimongkol faced Mike Vetrila for the inaugural BKFC Thailand Light Heavyweight Championship at BKFC Thailand 2: Iconic Impact on May 7, 2022. He won the close fight via majority decision to become the first BKFC Thailand Light Heavyweight Champion.

## Entertainment career

Sirimongkol, known for his striking appearance, was dubbed "Teppabud na yok" ("handsome divinity") by his Thai boxing fans. After losing the WBC world title in 1997, he transitioned into show business. His ventures included modeling for a women's fashion magazine, appearing on the 2003 Thai TV drama "Pret Wat Suthat" on Channel 7 and the 2008 martial arts film "Chocolate", and featuring in a music video by the rock band Motive alongside Dom Hetrakul.
In 2005, Sirimongkol faced a scandal involving nude photos. Police discovered gay pornographic magazines featuring his photos being sold at Or Tor Kor Market. This incident was covered by various media outlets.

## Professional boxing record

| 104 fights | 99 wins | 5 losses |
| By knockout | 62 | 2 |
| By decision | 37 | 3 |
| No. | Result | Record | Opponent | Type | Round, time | Date | Location | Notes |
| 104 | Win | 99–5 | Matt Floyd | SD | 12 | 6 Oct 2024 | Lumpinee Boxing Stadium, Bangkok, Thailand | Won vacant WBF light-heavyweight title |
| 103 | Win | 98–5 | Yuttana Wongda | UD | 6 | 17 Mar 2024 | Singmanassak Muaythai School, Pathum Thani, Thailand | |
| 102 | Loss | 97–5 | Teerachai Sithmorseng | RTD | 6 (10) | 24 Apr 2021 | Suanlum Night Bazaar, Bangkok, Thailand | For WBA Asia light-heavyweight title |
| 101 | Win | 97–4 | Thikhamporn Parnkerd | TKO | 1 (4) | 1 Dec 2019 | Muaythai School, Pathum Thani, Thailand | |
| 100 | Win | 96–4 | Muhammad Nsubuga | KO | 2 (8) | 1 Sep 2018 | Muaythai School, Pathum Thani, Thailand | Won vacant Thai light-heavyweight title |
| 99 | Loss | 95–4 | Tommy Browne | UD | 10 | 20 Oct 2017 | Suntec Int. Convention Centre, Singapore | For vacant IBO Asia Pacific light-middleweight title |
| 98 | Win | 95–3 | Larry Siwu | SD | 10 | 27 May 2017 | Resorts World Sentosa, Singapore | Won vacant UBO Inter Continental light-middleweight title |
| 97 | Loss | 94–3 | Azizbek Abdugofurov | UD | 12 | 10 Feb 2017 | Far East Square, Singapore | For ABCO middleweight title |
| 96 | Win | 94–2 | Carlos Roberto | UD | 12 | 29 Sep 2016 | SP Kansard Company, Bangkok, Thailand | |
| 95 | Win | 93–2 | Chaokeng Laos PDR | TKO | 3 (6) | 23 Jun 2016 | Satrimahapuektharam School, Bangkok, Thailand | |
| 94 | Win | 92–2 | Zhao Shu Song | UD | 6 | 28 Apr 2016 | Morseng Center, Udon Thani, Thailand | |
| 93 | Win | 91–2 | Willy Whipple | TKO | 8 (10) | 26 Jan 2016 | Wat Itisukto, Hua Hin, Thailand | |
| 92 | Win | 90–2 | Felipe Nascimento | UD | 6 | 12 Nov 2015 | RMUTT, Pathum Thani, Thailand | |
| 91 | Win | 89–2 | Saidi Mundi | KO | 3 (12) | 15 Sep 2015 | Floating Market, Sai Noi | Retained WBO Asia Pacific light-middleweight title |
| 90 | Win | 88–2 | Mohamed Larabi | UD | 6 | 18 Aug 2015 | Pathum Thani, Thailand | |
| 89 | Win | 87–2 | Dan Nazareno Jr. | UD | 12 | 7 Apr 2015 | Mahachai Villa Market, Samut Sakhon | Retained WBO Asia Pacific light-middleweight title |
| 88 | Win | 86–2 | Jacob Martinez | KO | 3 (6) | 28 Jan 2015 | Wat Itisukto, Hua Hin, Thailand | |
| 87 | Win | 85–2 | Alexey Akimenko | RTD | 2 (6) | 28 Dec 2014 | Wongwianyai, Bangkok, Thailand | |
| 86 | Win | 84–2 | Dan Nazareno Jr. | UD | 12 | 15 Oct 2014 | Bueng Phraya Floating Market, Bangkok, Thailand | Won vacant WBO Asia Pacific light-middleweight title |
| 85 | Win | 83–2 | Omari Ramadan | KO | 3 (12) | 29 Jul 2014 | Prachathipat school, Pathum Thani, Thailand | Retained ABCO Continental welterweight title |
| 84 | Win | 82–2 | Victor Nunez | KO | 4 (6) | 17 Jun 2014 | Mahachai Stadium, Samut Sakhon, Thailand | |
| 83 | Win | 81–2 | Barak Sithyodthong | KO | 2 (6) | 9 Apr 2014 | Wat Sakaew School, Ang Thong, Thailand | |
| 82 | Win | 80–2 | Xingxin Yang | RTD | 6 (12) | 5 Feb 2014 | City Hall, Haikou, China | Retained ABCO Continental welterweight title |
| 81 | Win | 79–2 | Felipe Nascimento | KO | 2 (6) | 28 Dec 2013 | Wongwianyai, Bangkok, Thailand | |
| 80 | Win | 78–2 | Jovany Rota | KO | 1 (12) | 12 Dec 2013 | Mahachai Villa Arena, Samut Sakhon, Thailand | Retained ABCO Continental welterweight title |
| 79 | Win | 77–2 | Ronnel Esparas | KO | 3 (12) | 17 Sep 2013 | 13 Coins Resort, Phraram 9, Bangkok, Thailand | Retained ABCO Continental welterweight title |
| 78 | Win | 76–2 | Nicolas Lameche | KO | 3 (6) | 13 Aug 2013 | 13 Coins Resort, Phraram 9, Bangkok, Thailand | |
| 77 | Win | 75–2 | Ekeni Kritov | TKO | 3 (6) | 9 Jul 2013 | 13 Coins Resort, Phraram 9, Bangkok, Thailand | |
| 76 | Win | 74–2 | Mohamadreza Hamze | TKO | 6 (12) | 14 May 2013 | Rangsit Stadium, Rangsit, Thailand | Retained ABCO Continental welterweight title |
| 75 | Win | 73–2 | Mohammad Faisol | TKO | 3 (6) | 21 Apr 2013 | Klongphai, Nakhon Ratchasima, Thailand | |
| 74 | Win | 72–2 | Mohammad Faisol | KO | 3 (6) | 1 Mar 2013 | Terdthai Market, Ladkrabang, Bangkok, Thailand | |
| 73 | Win | 71–2 | Muhammad Nsubuga | KO | 6 (12) | 6 Jan 2013 | Klongphai, Nakhon Ratchasima, Thailand | |
| 72 | Win | 70–2 | Dennis Padua | KO | 5 (12) | 14 Nov 2012 | Wanglee Ground, Pathum Thani, Thailand | Won vacant ABCO Continental welterweight title |
| 71 | Win | 69–2 | Peter Pikinik | PTS | 6 | 18 Sep 2012 | KMUTT, Bangkok, Thailand | |
| 70 | Win | 68–2 | Eagle | TKO | 3 (6) | 30 Jul 2012 | Central Correctional Instituti, Pathum Thani, Thailand | |
| 69 | Win | 67–2 | Umar Ssemata | KO | 6 (6) | 28 Apr 2012 | Old City Hall, Ayutthaya, Thailand | |
| 68 | Win | 66–2 | Mohamadreza Hamze | UD | 12 | 3 Dec 2011 | Doem Bang Nang Buat, Thailand | |
| 67 | Win | 65–2 | Peter Pikinik | TKO | 2 (6) | 22 Aug 2011 | Central Correctional Instituti, Pathum Thani, Thailand | |
| 66 | Win | 64–2 | Mohammed Saleh | KO | 3 (6) | 29 Apr 2011 | Nongsuor School, Pathum Thani, Thailand | |
| 65 | Win | 63–2 | Mohammed Saleh | KO | 2 (6) | 12 Aug 2009 | Nakhon Ratchisima Zoo, Nakhon Ratchasima, Thailand | |
| 64 | Win | 62–2 | Michael Nigro | KO | 1 (6) | 1 Aug 2009 | Muaythai School, Pathum Thani, Thailand | |
| 63 | Win | 61–2 | Mohammed Saleh | KO | 2 (6) | 5 Jun 2009 | Ringping Riverside, Kamphaeng Phet, Thailand | |
| 62 | Win | 60–2 | Rogelio Castañeda Jr. | MD | 8 | 22 Nov 2008 | MGM Grand Garden Arena, Las Vegas, Nevada, U.S. | |
| 61 | Win | 59–2 | Chad Bennett | TKO | 1 (12) | 24 May 2008 | Honeysuckle Boiler Room, Newcastle, Australia | Retained PABA light-welterweight title |
| 60 | Win | 58–2 | Arnel Porras | UD | 12 | 21 Dec 2007 | Sukhothai Thammathirat University, Pak Kret, Thailand | Won vacant PABA light-welterweight title |
| 59 | Win | 57–2 | Kaennakorn Bangbuathong | TKO | 4 (8) | 14 Sep 2007 | Potawattana Saenee School, Ratchaburi, Thailand | |
| 58 | Win | 56–2 | Anukun Kulamun | UD | 12 | 1 May 2007 | Nonthaburi, Thailand | Won ABCO super-featherweight title |
| 57 | Win | 55–2 | Jesus Kibunde Kakonge | UD | 6 | 21 Mar 2007 | Amornsap Yuwittaya, Nongjork, Bangkok, Thailand | |
| 56 | Win | 54–2 | Lito Gonzaga | KO | 3 (10) | 18 Jul 2006 | The Mall Bangkapi, Bangkok, Thailand | |
| 55 | Win | 53–2 | Hayato Takabayashi | UD | 6 | 10 Mar 2006 | Rachabhak University, Petchaburi, Thailand | |
| 54 | Win | 52–2 | Chao Liang | TKO | 4 (10) | 21 Dec 2005 | Bangkhuntien, Bangkok, Thailand | |
| 53 | Win | 51–2 | Wuxiao Song | KO | 7 (10) | 7 Nov 2005 | Central Correctional Instituti, Pathum Thani, Thailand | |
| 52 | Win | 50–2 | Arnel Tinampay | UD | 8 | 28 Sep 2005 | The Mall Shopping Center, Bangkok, Thailand | |
| 51 | Win | 49–2 | Rodney Jun Alba | TKO | 4 (6) | 5 Jul 2005 | Impact Arena, Muang Thong Thani, Thailand | |
| 50 | Win | 48–2 | Michael Clark | TKO | 7 (12) | 14 May 2005 | MGM Grand Garden Arena, Las Vegas, Nevada, U.S. | |
| 49 | Win | 47–2 | Donny Suratin | UD | 6 | 4 Feb 2005 | STOU, Pak Kret, Thailand | |
| 48 | Win | 46–2 | Fernando Montilla | UD | 8 | 9 Sep 2004 | Chumphon, Thailand | |
| 47 | Win | 45–2 | Larry Pelonia | TKO | 8 (8) | 15 Jul 2004 | Khon Kaen, Thailand | |
| 46 | Win | 44–2 | Wuli Mthembu | KO | 1 (6) | 21 May 2004 | Nonthai District, Nakhon Ratchasima, Thailand | |
| 45 | Loss | 43–2 | Jesús Chávez | UD | 12 | 15 Aug 2003 | Convention Center, Austin, Texas, U.S. | Lost WBC super-featherweight title |
| 44 | Win | 43–1 | Anthony Tshehla | TKO | 6 (10) | 1 May 2003 | The Mall Bangkae, Bangkok, Thailand | |
| 43 | Win | 42–1 | Choi Yong-soo | UD | 12 | 13 Jan 2003 | Korakuen Hall, Tokyo | Retained WBC super-featherweight title |
| 42 | Win | 41–1 | Richard Cabillo | TKO | 2 (6) | 25 Oct 2002 | The Mall Shopping Center, Nonthaburi, Thailand | |
| 41 | Win | 40–1 | Kengo Nagashima | KO | 2 (12) | 24 Aug 2002 | Ryōgoku Kokugikan, Yokoami, Japan | Won vacant WBC super-featherweight title |
| 40 | Win | 39–1 | Christopher Saluday | KO | 6 (10) | 1 May 2002 | Nonthaburi, Thailand | |
| 39 | Win | 38–1 | Isagani Pumar | KO | 3 (?) | 30 Mar 2002 | Nonthaburi, Thailand | |
| 38 | Win | 37–1 | Rex Marzan | KO | 3 (10) | 11 Jan 2002 | Thanyaburi, Thailand | |
| 37 | Win | 36–1 | Arman Molina | TKO | 4 (10) | 19 Oct 2001 | Bangkok, Thailand | |
| 36 | Win | 35–1 | Jerry DeGarcia | KO | 8 (10) | 1 Sep 2001 | Bangkok, Thailand | |
| 35 | Win | 34–1 | Gabby Montano | KO | 4 (?) | 12 Jul 2001 | Bangkok, Thailand | |
| 34 | Win | 33–1 | Nori Fapuro | KO | 3 (9) | 4 May 2001 | Nonthaburi, Thailand | |
| 33 | Win | 32–1 | Teofilo Tunacao | TKO | 2 (10) | 5 Dec 2000 | Royal Promenade-Sanam Luang, Bangkok, Thailand | |
| 32 | Win | 31–1 | Dondon Colas | TKO | 1 (8) | 18 Oct 2000 | Bangkok, Thailand | |
| 31 | Win | 30–1 | Jonathan Mercado | TKO | 7 (?) | 25 Jun 2000 | Bangkok, Thailand | |
| 30 | Win | 29–1 | Francis Velasquez | TKO | 5 (?) | 19 Apr 2000 | Bangkok, Thailand | |
| 29 | Win | 28–1 | Ali Albaracin | KO | 2 (?) | 11 Mar 2000 | Municipal Stadium, Aranyaprathet, Thailand | |
| 28 | Win | 27–1 | Al Jongjong Abao | TKO | 3 (?) | 19 Jan 2000 | Bangkok, Thailand | |
| 27 | Win | 26–1 | Jerry DeGarcia | PTS | 10 | 17 Nov 1999 | Bangkok, Thailand | |
| 26 | Win | 25–1 | Francis Velasquez | TKO | 9 (?) | 15 Sep 1999 | Bangkok, Thailand | |
| 25 | Win | 24–1 | Nonoy Gonzales | UD | 10 | 21 Jul 1999 | Bangkok, Thailand | |
| 24 | Win | 23–1 | Jerry DeGarcia | PTS | 8 | 21 May 1999 | National Stadium, Sara Buri, Thailand | |
| 23 | Win | 22–1 | Ramon Molina | KO | 5 (?) | 17 Mar 1999 | Bangkok, Thailand | |
| 22 | Win | 21–1 | Jun Balabat | UD | 10 | 20 Jan 1999 | Bangkok, Thailand | |
| 21 | Win | 20–1 | Sukhbayar Nemekbayar | PTS | 10 | 18 Nov 1998 | Bangkok, Thailand | |
| 20 | Win | 19–1 | Ric Ramirez | PTS | 10 | 16 Sep 1998 | Bangkok, Thailand | |
| 19 | Win | 18–1 | Sukhbayar Nemekbayar | PTS | 10 | 17 Jun 1998 | Bangkok, Thailand | |
| 18 | Win | 17–1 | Edwin Casano | KO | 1 (?) | 13 May 1998 | Bangkok, Thailand | |
| 17 | Loss | 16–1 | Joichiro Tatsuyoshi | TKO | 7 (12) | 22 Nov 1997 | Osaka-jō Hall, Osaka, Japan | Lost WBC bantamweight title |
| 16 | Win | 16–0 | Victor Rabanales | UD | 12 | 4 Jul 1997 | Pattani, Thailand | Retained WBC bantamweight title |
| 15 | Win | 15–0 | Javier Campanario | KO | 4 (12) | 26 Apr 1997 | Patong Beach Soccer Grounds, Patong, Thailand | Retained WBC bantamweight title |
| 14 | Win | 14–0 | Jesus Sarabia | UD | 12 | 15 Feb 1997 | Nakornpanom Stadium, Nakhon Phanom, Thailand | Retained WBC bantamweight title |
| 13 | Win | 13–0 | José Luis Bueno | TKO | 5 (12) | 10 Aug 1996 | Soccer Stadium, Phitsanulok, Thailand | Won interim WBC bantamweight title |
| 12 | Win | 12–0 | Thanomsak Sithbaobay | TKO | 3 (?) | 5 May 1996 | Bangkok, Thailand | |
| 11 | Win | 11–0 | Arturo Estrada | UD | 12 | 23 Mar 1996 | Ban Phai Shopping Centre, Ban Phai, Thailand | Retained WBU bantamweight title |
| 10 | Win | 10–0 | Miguel Espinoza | UD | 12 | 23 Dec 1995 | Channel 7 Studios, Bangkok, Thailand | Won vacant WBU bantamweight title |
| 9 | Win | 9–0 | Juanito Boy Cuma | UD | 12 | 5 Aug 1995 | Channel 7 Studios, Bangkok, Thailand | Won vacant WBU super-flyweight title |
| 8 | Win | 8–0 | Alberto Campanina | PTS | 10 | 21 Jun 1995 | Bangkok, Thailand | |
| 7 | Win | 7–0 | Ledion Ceniza | PTS | 10 | 19 Apr 1995 | Bangkok, Thailand | |
| 6 | Win | 6–0 | Ricky Flor | KO | 6 (?) | 15 Feb 1995 | Channel 7 Studios, Bangkok, Thailand | |
| 5 | Win | 5–0 | Jun Lansaderas | TKO | 5 (?) | 21 Dec 1994 | Channel 7 Studios, Bangkok, Thailand | |
| 4 | Win | 4–0 | Alberto Campanina | PTS | 10 | 12 Oct 1994 | Channel 7 Studios, Bangkok, Thailand | |
| 3 | Win | 3–0 | Emil Romano | TKO | 5 (10) | 17 Aug 1994 | Channel 7 Studios, Bangkok, Thailand | |
| 2 | Win | 2–0 | Joel Nice | PTS | 10 | 15 Jun 1994 | Channel 7 Studios, Bangkok, Thailand | |
| 1 | Win | 1–0 | Ritichai Kiatprapas | PTS | 6 | 18 May 1994 | Channel 7 Studios, Bangkok, Thailand | |

## Bare knuckle record

Professional record breakdown :
| 2 matches | 2 wins | 0 losses |
| By decision | 2 | 0 |
| Res. | Record | Opponent | Method | Event | Date | Round | Time | Location | Notes |
| Win | 2–0 | Mike Vetrila | Decision (majority) | BKFC Thailand 2 | May 7, 2022 | 5 | 2:00 | Pattaya, Thailand | Won the inaugural BKFC Thailand Light Heavyweight Championship. |
| Win | 1–0 | Reza Goodary | Decision (split) | BKFC Thailand 1 | December 18, 2021 | 5 | 2:00 | Pattaya, Thailand | |