Chayaphon Moonsri (born 27 October 1985), better known by his ring name Wanheng Menayothin, is a Thai professional boxer and former Muay Thai fighter. He fought under the name Wanheng Menayothin (also Wanheng Kaiyanghadaogym) and gained fame in the minimumweight (mini-flyweight) division. Menayothin started out as a Muay Thai fighter in his youth before transitioning to boxing, where he established a legacy in the smallest weight categories.
He made his professional boxing debut in 2007 and, over the years, became known for a steady, disciplined style, stamina, ring craft, and consistency. He held the WBC mini-flyweight (minimumweight) title from 2014 to 2020, defending it multiple times before later losses changed his trajectory.
Salary and Net Worth of Wanheng Menayothin
Estimates around the salary and net worth of Wanheng Menayothin vary widely, as financial transparency in the lower weight divisions is limited. Based on fight reports and projected purses, here is a reasoned estimate:
Over his career, his total earnings from fight purses and bonuses are likely in the hundreds of thousands to low millions of U.S. dollars.
In many of his world title fights in Thailand, his guaranteed purse was modest relative to larger weight classes, though title status and broadcast deals boosted income.
Some sources list that when he faced Pedro Taduran in 2018, his purse for that fight was around USD 8,000 (a typical figure often cited for minimumweight title fights).
Beyond ring purses, his income may include sponsorships, endorsements, and gym affiliations, though these are generally modest in the minimumweight division.
His recent salary
Considering longevity, consistency of title defenses, and ancillary income, a plausible net worth estimate as of 2025 might fall somewhere between USD 0.5 million to USD 2 million, but such numbers remain speculative.
Wanheng Menayothin Age and Height
Wanheng Menayothin Age
Born on 27 October 1985, as of October 2025, Wanheng Menayothin is 39 years old. He will turn 40 later in October 2025.
Wanheng Menayothin Height (and Reach)
His height is listed as 5 ft 2 in (158 cm).
His reach is recorded at about 64.5 to 64.6 in (≈ 164 cm).
He fights with an orthodox stance.
These physical dimensions are typical for the minimumweight class, where agility, speed, and volume punching often matter more than power.
Wanheng Menayothin’s Wife or Girlfriend
Public information on Wanheng Menayothin’s personal life, including a spouse or long-term partner, is very limited. He keeps his private life largely out of the media’s attention.
No credible records indicate a verified wife or girlfriend as of 2025. Some Thai boxing coverage refers in passing to his family background and supporters, but nothing reliable connects him publicly to a partner.
His Latest Career News
As of 2025, the latest known developments in Wanheng Menayothin’s boxing career are:
His most recent fight was on 20 July 2022 against Thammanoon Niyomtrong in Chonburi, Thailand. He lost by unanimous decision after 12 rounds in a WBA (Super) minimumweight title fight.
Before that, on 29 March 2022, he lost via unanimous decision to Panya Pradabsri in a WBC minimumweight title bout.
Earlier, on 27 November 2020, he had lost the WBC minimumweight title to Pradabsri by unanimous decision, marking his first professional defeat after a long unbeaten run.
After 2022, there is no confirmed further fight scheduled or announced as of late 2025, according to boxing record sites.
Given his age and the accumulation of losses in a region of the sport where comebacks are challenging, many analysts view him as either in a twilight phase of his career or potentially contemplating retirement or limited activity.
There have been earlier announcements (circa 2020) that Wanheng might retire undefeated, but subsequent fights contradicted that, and no formal retirement declaration has been reliably confirmed as of 2025.
Thus, his recent career phase is marked by a decline in fight outcomes, fewer bouts, and uncertainty on whether or not he continues or retires.
His boxing career, net worth, age, height, and family
| Category | Details |
|---|---|
| Full Name | Chayaphon Moonsri (Thai: ชยพล มูลศรี) |
| Ring Name / Nickname | Wanheng Menayothin (วันเฮง มีนะโยธิน) / Wanheng Kaiyanghadaogym |
| Date of Birth | 27 October 1985 |
| Age (as of 2025) | 39 years old |
| Birthplace | Maha Sarakham, Thailand |
| Nationality | Thai |
| Height | 5 ft 2 in (158 cm) |
| Reach | 64.5 in (164 cm) |
| Weight Class | Minimumweight (Mini-flyweight) – 105 lbs (47.6 kg) |
| Stance | Orthodox |
| Religion | Buddhism |
| Education / College | Bachelor of Arts, Bangkokthonburi University |
| Started Muay Thai Career | At age 13 |
| Turned Professional (Boxing) | January 2007 |
| Professional Boxing Debut | 26 January 2007 (Thailand) |
| Professional Wins | 55 Wins (19 by KO) |
| Losses | 3 |
| Draws | 0 |
| Total Fights | 58 |
| World Titles Held | WBC Mini-Flyweight Champion (2014–2020) |
| Title Defenses | 12 successful defenses |
| Highest Ranking | WBC World Champion (Minimumweight) |
| First Loss | 27 November 2020 (vs. Panya Pradabsri) |
| Promoter | Virat Vachirarattanawong |
| Known For | Undefeated streak of 54–0 before first loss, surpassing Mayweather’s record (51–0) |
| Father’s Name | Not publicly disclosed |
| Mother’s Name | Not publicly disclosed |
| Marital Status | Not publicly confirmed (private life kept undisclosed) |
| Wife / Girlfriend | No verified public information as of 2025 |
| Current Residence | Bangkok, Thailand |
| Religion / Faith | Theravada Buddhism |
| Net Worth (Estimated 2025) | $0.5 million – $2 million USD (approx.) |
| Languages Spoken | Thai |
| Known For | Technical precision, defensive skills, consistent stamina, undefeated era |
| Fighting Style | Technical, volume punching, durable defense |
| Retirement Status (as of 2025) | Not officially retired, but inactive since 2022 |
| Latest Fight | 20 July 2022 (vs. Thammanoon Niyomtrong – Lost by UD) |
| Record Comparison | Equaled Floyd Mayweather Jr.’s 50–0 record in 2018; surpassed to 51–0 later |
| Wiki Page | Wanheng Menayothin – Wikipedia |
| Instagram / Social Media | Limited public presence (mainly local Thai media) |
| Interesting Fact | Before boxing, he was a Lumpinee Stadium and Thai National Muay Thai Champion |
| Languages | Thai (native), limited English |
| Country Represented | Thailand |
| Fight Base | Bangkok, Thailand |
| Trainer / Gym | Kaiyanghadaogym |
| Notable Opponents | Pedro Taduran, Panya Pradabsri, Melvin Jerusalem, Simphiwe Khonco, Tatsuya Fukuhara |
| Known Comparison | Drew global attention for surpassing Floyd Mayweather’s 50–0 record in 2018 |
| Notable Quote | “I fight for my family and for Thailand.” |
| Legacy Summary | One of Thailand’s longest-reigning minimumweight champions and one of the most consistent boxers in modern lower-weight history. |
His Achievements
Wanheng Menayothin’s career includes several notable accomplishments:
He held the WBC mini-flyweight (minimumweight) world title from 2014 until 2020, making multiple successful defenses.
He defended the title over a dozen times, demonstrating consistency and dominance in his division.
During his career, he built an undefeated streak that, at one time, was compared to boxing’s greats. He once reached 50–0, drawing comparisons to Floyd Mayweather’s early records.
He achieved victories over notable fighters such as Pedro Taduran, Melvin Jerusalem, Simphiwe Khonco, Tatsuya Fukuhara, and others in title defenses.
His longevity in a niche division, retention of title over the years, and recognition as one of Thailand’s top minimumweight champions add to his legacy.
His professional record (as of 2025) stands at 55 wins, 3 losses, with 19 KOs per boxing record aggregators, giving a KO rate of ~ 35%.
He has never been stopped (i.e. no knockout loss), which underscores his durability even in defeat.
Overall, Wanheng’s achievements are particularly respected within lower weight classes, and his run as a long-reigning champion in the minimumweight realm is significant.
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FAQs About Wanheng Menayothin
What is Wanheng Menayothin’s professional record?
His record is 55 wins and 3 losses (0 draws). Out of those wins, 19 came by knockout, giving him a knockout percentage of approximately 35%.
When did Wanheng Menayothin first lose a fight?
His first professional defeat came on 27 November 2020, when he was defeated by Panya Pradabsri via unanimous decision.
Has he ever announced retirement?
At one point, there were rumors and reports that he considered retiring undefeated, but he continued to fight afterwards. As of 2025, there is no confirmed, definitive retirement announcement verified by major boxing outlets.
Who is Wanheng’s toughest opponent?
Many fans and analysts reference Panya Pradabsri as a formidable rival, given that Pradabsri beat him twice in title fights. Others point to Pedro Taduran as a high-profile challenger during his undefeated era.
Is he still active in boxing in 2025?
No fight is currently scheduled or confirmed for Wanheng in 2025, and his activity has significantly decreased since his 2022 bout. Whether he plans further returns is uncertain.
Did Wanheng ever fight outside Thailand?
Throughout his high-profile career, nearly all his title fights took place in Thailand. He did not achieve wide international exposure in venues outside his home country.
What style or stance does he use?
Wanheng Menayothin fights in an orthodox stance. His style emphasizes volume punching, technical precision, endurance, and smart defense rather than raw power.
What are his physical stats?
He is 5 ft 2 in (158 cm) tall, has a reach of about 64.5–64.6 in (164 cm), and competes in the minimumweight (105 lb) division for most of his major career.
Final Thoughts
Wanheng Menayothin is a respected name in lower-weight boxing, with a long-standing dominance in the minimumweight class. His journey from Muay Thai to boxing, his multiple title defenses, and his durability define a career worthy of admiration—especially in a division where exposure and financial rewards are limited.
While recent losses and inactivity raise questions about his future, his legacy as one of Thailand’s great minimumweight champions is secure. Whether he makes a return or steps away permanently, Wanheng’s story remains compelling for boxing fans who follow the discipline and heart required in the “lighter” divisions.
