URCC/Gorilla Warfare On June 30, 2007, Folayang made his professional debut in the
Universal Reality Combat Championship (URCC), the biggest mixed martial arts promotion in the Philippines. The Baguio native fought undefeated welterweight champion Allan Co and defeated him by TKO in round 1. With the win, Folayang became the new title holder. After 5 wins, Folayang suffered his first defeat at the hands of Guam's
Jon Tuck via knockout in just 8 seconds on November 21, 2009. This was his second bout in the Gorilla Warfare promotion. Despite having a contract with ONE FC, Folayang was allowed to return to the
URCC to fight Brazilian
Muay Thai champion Wadson Teixeira at URCC Cebu VII: Dominate on January 13, 2012. He won by submission due to elbows in the first round. On December 1, 2012, Folayang returned in the promotion facing Lowen Tynanes. Eduard Folayang loss by a doctor stoppage due to a big cut delivered by Tynanes' elbow.
Martial Combat Folayang entered the Singapore-based promotion Martial Combat in 2010. On June 17, the multi-titled wushu expert took on Slovakian fighter Egon Racz in the MC – Martial Combat 5 event. Folayang won the match via guillotine choke early in the first round. On July 14, 2010, Folayang fought Mongolian Bao She Ri Gu Leng in a lightweight fight, with the latter's Superfight lightweight title at stake; the event was held at the Resorts World Sentosa in Singapore. The Filipino fighter won by unanimous decision after 5 round, to become the new champion. On October 16, 2010, Folayang fought South African Muay Thai specialist
Vuyisile Colossa at Martial Combat 12. Folayang won a decision after scoring multiple takedowns in the first two rounds even though Colossa dominated the third round.
ONE Championship He was originally scheduled to make his
ONE Championship debut against Muay Thai champion-turned MMA fighter
Ole Laursen at
ONE FC: Champion vs. Champion at the
Singapore Indoor Stadium on September 3, 2011. Laursen, however, suffered a knee injury in training and was replaced by A Sol Kwon, a
South Korean on a six fight winning streak. Folayang won the fight via unanimous decision. A rescheduled bout with Ole Laursen took place on March 31, 2012. In a back-and-forth fight, Folayang lost via a controversial split decision, resulting to the crowd booing Laursen after the decision was announced. On July 18, 2012, Folayang defeated Felipe Enomoto via unanimous decision at
ONE FC: Pride of a Nation in Manila, Philippines. Right after the fight ONE FC President Victor Cui announced that Folayang will earn a shot for the first ever ONE FC lightweight belt on October at
ONE FC: Rise of Kings against Zorobabel Moreira. Despite the announcement, Folayang had to pull out of the title fight due to URCC commitments. He was later replaced by former foe Ole Laursen who was again replaced by
Kotetsu Boku who eventually became the first ever
ONE FC Lightweight Champion. However, One FC officials mentioned that Folayang will retain his no.1 contender status and should face the eventual winner Boku. On May 31, 2013, Folayang fought
UFC and
WEC veteran
Kamal Shalorus at
ONE FC 9: Rise to Power. He lost the fight via unanimous decision. Coming from a two-fight losing skid, Folayang faced Dutch fighter Vincent Latoel on December 6, 2013, at
ONE FC: Moment of Truth. The event took place at the
SM Mall of Asia Arena in
Pasay, Philippines. For the majority of the fight, Folayang used his takedowns and ground striking offense but was unable to finish his opponent, eventually winning by unanimous decision. In his next fight, Folayang faced former ONE FC lightweight champion
Kotetsu Boku on May 2, 2014, at
ONE FC: Rise of Heroes. He won the bout by unanimous decision. Folayang faced Russian fighter
Timofey Nastyukhin on December 5, 2014, at ''
ONE FC 23: Warrior's Way''. Despite entering the fight as a favorite, Folayang lost the fight via KO in the first round after being dropped by a flying knee and then finished by Nastyukhin's soccer kicks.
ONE Lightweight Champion After picking up two consecutive wins in 2016, Folayang faced
Shinya Aoki for the ONE Championship Lightweight title at
ONE Championship: Defending Honor on November 11, 2016, in Singapore. Folayang won the bout and the title via TKO in the third round. On April 21, 2017, Folayang successfully defended his title against Ev Ting at
ONE 54: Kings of Destiny. On November 10, 2017, Folayang lost the lightweight title at
ONE 61: Legends of the World to
Martin Nguyen via second-round KO, Nguyen would then vacate the title due to injury. After losing his title, Folayang picked up a couple of wins against Kharun Atlangeriev and Aziz Pahrudinov in 2018 and was given a chance to reclaim the belt at
ONE Championship: Conquest of Champions on November 23, 2018, against Singaporean knockout artist Amir Khan. Folayang recaptured the lightweight title by defeating Khan via unanimous decision. On March 31, 2019, Folayang lost the lightweight title again in a rematch with
Shinya Aoki at
ONE Championship: A New Era via technical submission.
Post-title reign Folayang's next fight was at
ONE Championship: Dawn of Heroes on August 2, 2019. He faced former UFC and Bellator lightweight champion
Eddie Alvarez. Folayang lost the fight via submission in the first round. Folayang next faced Amarsanaa Tsogookhuu at
ONE Championship: Masters Of Fate on November 8, 2019. After dominating early in the fight with his kicks, an accidental clash of heads in the second round cut Folayang open and rendered him unable to continue. The fight would go to a technical decision and Eduard Folayang won by unanimous decision. Afterwards, Folayang was originally scheduled to face
Ahmed Mujtaba at
ONE Championship: Fire & Fury. However, Mujtaba would later be replaced by Pieter Buist. On January 31, 2020, Folayang lost to Buist by split decision. Folayang faced Antonio Caruso at
ONE Championship: Inside the Matrix on October 30, 2020. He lost the fight via unanimous decision. Folayang was to make a comeback on April 28, 2021, against former
UFC middleweight contender
Yoshihiro Akiyama at
ONE on TNT 4. However, he was rescheduled instead to have a trilogy match against
Shinya Aoki after Akiyama pulled out due to suffering an injury during training camp. He lost the bout in the first round via armbar. Folayang faced
Zhang Lipeng at
ONE Championship: Battleground 2 on August 13, 2021. He lost the bout via unanimous decision. Folayang made his ONE Super Series debut against
John Wayne Parr under Muay Thai rules at
ONE: X on March 26, 2022. He won the bout via unanimous decision. Folayang faced Edson Marques on December 3, 2022, at
ONE on Prime Video 5. He lost the fight via technical knockout in the second round. Folayang faced Amir Khan in a rematch on September 30, 2023, at
ONE Fight Night 14. He won the fight via knockout in the third round, snapping a five-fight losing streak. Folayang faced
Shinya Aoki in a tetralogy bout on March 23, 2025, at
ONE 172. On June 24, 2023, it was announced that Folayang had formed his own team, Lions Nation MMA, with fellow ex-Team Lakay members
Kevin Belingon,
Joshua Pacio,
Danny Kingad,
Jeremy Pacatiw,
Stephen Loman and Honorio Banario. ==Championships and accomplishments==