Wanheng Menayothin


Chayaphon Moonsri, known as Wanheng Menayothin or Wanheng Kaiyanghadaogym is a Thai professional boxer and Muay Thai fighter who held the WBC mini-flyweight title from 2014 to 2020.

Early life and Muay Thai career

Moonsri graduated with a Bachelor of Arts from Bangkokthonburi University. Prior to becoming a professional boxer, Menayothin was a Muay Thai fighter. Kaiyanghadaogym took up Muay Thai at 13 and he sustained his family with the money he earned from fighting. He went on to become a Lumpinee champion and a Thai national champion.

Boxing career

Wanheng made his professional debut in January 2007. He won the WBC Youth mini-flyweight title in his third fight. He later claimed two more secondary titles, with the WBC International Silver title and the WBC International title. In June 2011, Wanheng outpointed former world champion Florante Condes. On 31 May 2013, Moonsri defeated Raul Pusta Jr. by ninth-round technical knockout to retain the WBC International mini-flyweight title.
On 6 November 2014, Wanheng won his first world title when he defeated defending champion Oswaldo Novoa to win the WBC mini-flyweight title. Novoa was badly hurt by an overhand punch in the ninth round and he retired in the corner. Wanheng's promoter, Virat Vachirarattanawong, paid $175,000 to host the fight, a rarely high purse for the weight class. In his sixth defense, Wanheng beat Melvin Jerusalem via unanimous decision. Two scorecards were swung by a point deduction Jerusalem received after he threw a low blow.

Undefeated World record

On 2 May 2018, Wanheng equalled Floyd Mayweather Jr.'s 50–0 record by knocking out Panamanian opponent Leroy Estrada in the fifth round in a mandatory title defense.
On 29 August 2018, Wanheng eclipsed Mayweather, reaching 51–0 with a points win over Pedro Taduran.
On 31 May 2019, Menayothin fought Tatsuya Fukuhara. Despite suffering a cut, Menayothin managed to outbox his opponent. In the eighth round, the cut was deemed too severe by the referee, who stopped the fight early, and went to the scorecards. Menayothin was leading on all three scorecards at the time, 79-73, 78-74 and 78-74, and was awarded the technical decision victory and retained his WBC mini-flyweight belt.
In his next fight, Menayothin defended his title against Simphiwe Khonco. The WBC champion won via unanimous decision.

First loss

On 27 November 2020, he faced the WBC's number three ranked contender, Panya Pradabsri, at the City Hall Ground in Nakhon Sawan, Thailand. After a closely contested fight Menayothin suffered the first defeat of his career, losing his WBC title via twelve-round unanimous decision. All three judges scored the bout 115–113 in favour of Pradabsri.
Wanheng faced Knockout CP Freshmart for WBA (Super) mini-flyweight title on July 20, 2022. He lost the fight by unanimous decision, with scores of 116-112, 119-109 and 117-111.

Titles and accomplishments

Muay Thai

Professional boxing record

No.ResultRecordOpponentTypeRound, timeDateLocationNotes
59LossKnockout CP FreshmartUD1220 Jul 2022City Hall Ground, Chonburi, ThailandFor WBA (Super) mini-flyweight title
5855–2 Jinnawat RienpitKO4, 1:4924 May 2022Rangsit Stadium, Rangsit, ThailandOriginally a KO win for Menayothin, later overturned after it was revealed that Rienpit was still serving out a 30-day suspension at the time
57Loss55–2Panya PradabsriUD1229 Mar 2022City Hall Ground, Nakhon Sawan, ThailandFor WBC mini-flyweight title
56Win55–1Jinnawat RienpitKO3, 0:452 Nov 2021City Hall Ground, Nakhon Sawan, Thailand
55Loss54–1Panya PradabsriUD1227 Nov 2020City Hall Ground, Nakhon Sawan, ThailandLost WBC mini-flyweight title
54Win54–0Simphiwe KhoncoUD1225 Oct 2019City Hall Ground, Chonburi, ThailandRetained WBC mini-flyweight title
53Win53–0Tatsuya FukuharaTD8, 1:3231 May 2019City Hall, Chachoengsao, ThailandRetained WBC mini-flyweight title;
Unanimous TD after Menayothin cut from accidental head clash
52Win52–0Mektison MargantiUD616 Nov 2018Sofia Hotel, Prachinburi, Thailand
51Win51–0Pedro TaduranUD1229 Aug 2018Nakhon Sawan, ThailandRetained WBC mini-flyweight title
50Win50–0Leroy EstradaTKO5, 2:202 May 2018City Hall Ground, Nakhon Ratchasima, ThailandRetained WBC mini-flyweight title
49Win49–0Tatsuya FukuharaUD1225 Nov 2017Suranari Central Stadium, Nakhon Ratsachima, ThailandRetained WBC mini-flyweight title
48Win48–0Jack AmisaUD625 Aug 2017City Hall Ground, Chonburi, Thailand
47Win47–0Omari KimweriUD123 Jun 2017Provincial Stadium, Rayong, ThailandRetained WBC mini-flyweight title
46Win46–0Jeysever AbcedeUD631 Mar 2017Bangmod Wittaya School, Chom Thong, Thailand
45Win45–0Melvin JerusalemUD1225 Jan 2017Institute of Physical Education Stadium, Sukhothai, ThailandRetained WBC mini-flyweight title
44Win44–0Silem Serang614 Dec 2016Nakhon Ratchasima, Thailand
43Win43–0Saúl JuárezUD122 Aug 2016City Hall Ground, Chonburi, ThailandRetained WBC mini-flyweight title
42Win42–0Edo AnggoroKO4 27 May 2016Night Bazzar, Ayutthaya, Thailand
41Win41–0Go OdairaTKO5, 2:003 Mar 2016City Hall Ground, Nakhon Ratchasima, ThailandRetained WBC mini-flyweight title
40Win40–0Young Gil BaeTKO9, 2:1524 Nov 2015City Hall Ground, Chonburi, ThailandRetained WBC mini-flyweight title
39Win39–0Ardi BuyungTKO4 8 Oct 2015Siam Paradise Entertainment Centre, Bangkok, Thailand
38Win38–0Jerry TomogdanKO9, 1:042 Jun 201511th Inf Reg, Bangkok, ThailandRetained WBC mini-flyweight title
37Win37–0Jeffrey GaleroUD125 Feb 2015City Hall Ground, Nakhon Sawan, ThailandRetained WBC mini-flyweight title
36Win36–0Oswaldo Novoa9, 3:006 Nov 2014City Hall Ground, Chonburi, ThailandWon WBC mini-flyweight title
35Win35–0Samuel TehuayoUD627 Jun 2014Night Bazzar, Ayutthaya, Thailand
34Win34–0Domi NenokebaTKO4 25 Apr 2014Central Stadium, Phitsanulok, Thailand
33Win33–0Heri AmolUD628 Mar 2014Chokchai 4 Market, Bangkok, Thailand
32Win32–0Madit SadaUD627 Dec 2013Siam Paradise Entertainment Centre, Bangkok, Thailand
31Win31–0Jack AmisaUD1031 Oct 2013Hat Yai, Thailand
30Win30–0Yuma IwahashiUD1230 Aug 2013City Hall Ground, Chonburi, ThailandRetained WBC International mini-flyweight title
29Win29–0Domi NenokebaTKO2 24 Jul 2013Central Stadium, Phitsanulok, Thailand
28Win28–0Raul Pusta, Jr.TKO9, 1:1431 May 2013Toyota Office, Kanchanaburi, ThailandRetained WBC International mini-flyweight title
27Win27–0Samuel TehuayoUD629 Mar 2013Thungsimuang, Udon Thani, Thailand
26Win26–0Jack AmisaUD625 Jan 2013Wat Bannamtieng, Maha Sarakham, Thailand
25Win25–0Roilo GolezUD123 Dec 201211th Inf Reg, Bangkok, ThailandRetained WBC International mini-flyweight title
24Win24–0Jerson LuzaritoTKO8, 1:4028 Sep 2012Kad Choengdoi, Chiang Mai, ThailandRetained WBC International mini-flyweight title
23Win23–0Safwan LombokUD622 Jun 2012Bungkum, Bangkok, Thailand
22Win22–0Boy TantoTKO227 Apr 2012Nakhon Pathom, Thailand
21Win21–0Jonathan RefugioTKO9, 2:4024 Feb 2012Siam Cociety Hotel and Resort, Bangkok, ThailandRetained WBC International mini-flyweight title
20Win20–0Albert AlcoyUD623 Dec 201111th Inf Reg, Bangkok, Thailand
19Win19–0Crison OmayaoUD1211 Nov 2011Thabo, Nong Khai, ThailandWon vacant WBC International mini-flyweight title
18Win18–0Jetly PurisimaKO11, 0:4720 Sep 2011Municipal Stadium, Kanchanaburi, ThailandRetained WBC Silver International mini-flyweight title
17Win17–0Florante CondesUD1224 Jun 2011Chokchai 4 Market, Bangkok, ThailandRetained WBC Silver International mini-flyweight title
16Win16–0Noli MoralesTD6, 2:1231 Mar 2011Sara Buri, ThailandRetained WBC Silver International mini-flyweight title
15Win15–0Remy Cuambot10, 1:576 Jan 2011Central Stadium, Nakhon Phanom, ThailandWon vacant WBC Silver International mini-flyweight title
14Win14–0Jayson RotoniUD126 Aug 2010Light Infantry Boxing Arena, Bangkok, ThailandRetained WBC interim International mini-flyweight title
13Win13–0Ronelle FerrerasUD1230 Apr 2010Ayutthaya Park, Ayutthaya, ThailandRetained WBC interim International mini-flyweight title
12Win12–0Jayson RotoniUD1224 Dec 200911th Inf Reg, Bangkok, ThailandWon WBC interim International mini-flyweight title
11Win11–0Justin Golden BoyKO3, 2:212 Oct 2009Provincial School, Nakhon Phanom, ThailandRetained WBC Youth World mini-flyweight title
10Win10–0Ruel LaguneroUD1026 Jun 2009City Hall Ground, Nakhon Ratchasima, ThailandRetained WBC Youth World mini-flyweight title
9Win9–0Adi NukungUD1025 Feb 2009Ayutthaya Park, Ayutthaya, ThailandRetained WBC Youth World mini-flyweight title
8Win8–0Ardin DialeUD1031 Oct 2008Chokchai Four, Bangkok, ThailandRetained WBC Youth World mini-flyweight title
7Win7–0Kuk Chok JoTKO6 29 Aug 2008Railway Station Boxing Arena, Sara Buri, ThailandRetained WBC Youth World mini-flyweight title
6Win6–0Sofyan EffendiUD1025 Apr 2008Bangkok, ThailandRetained WBC Youth World mini-flyweight title
5Win5–0Armando dela Cruz5 24 Oct 2007Wat Yai Klang, Bang Phli, ThailandRetained WBC Youth World mini-flyweight title
4Win4–0Dennis JuntillanoUD1031 Jul 2007District Office, Chom Thong, ThailandRetained WBC Youth World mini-flyweight title
3Win3–0Ma Yiming1, 2:2130 Mar 2007Mathayom Wat Sing School, Samut Prakan, ThailandWon vacant WBC Youth World mini-flyweight title
2Win2–0Danny LinasaUD823 Feb 2007Chokchai 4 Center, Bangkok, Thailand
1Win1–0Roel Gade626 Jan 2007City Hall, Tak, Thailand

Muay Thai record

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