O-Khan atForbidden Door in 2022 | |
| Personal information | |
|---|---|
| Born | Tomoyuki Oka (1991-06-12)12 June 1991 (age 34)[2] Maebashi, Gunma, Japan[2] |
| Professional wrestling career | |
| Ring name(s) | Great-O-Khan Great-O-Kharn[1] Tomoyuki Oka |
| Billed height | 178 cm (5 ft 10 in)[2] |
| Billed weight | 110 kg (243 lb)[2] |
| Trained by | Yuji Nagata[3] NJPW Dojo |
| Debut | February 25, 2016 |
Tomoyuki Oka (岡 倫之,Oka Tomoyuki; born June 12, 1991), better known by hisring nameGreat-O-Khan (グレート-O-カーン,Gurēto-Ō-Kān), is a Japaneseprofessional wrestler signed toNew Japan Pro-Wrestling (NJPW), where he is a member of theUnited Empire stable, a formerNJPW World Television Champion, and the final officialKOPW Champion. He also wrestles for NJPW'sUnited Kingdom based partner promotionRevolution Pro Wrestling (RevPro), where he is the formerUndisputed British Heavyweight Champion. In NJPW, he is also a four-timeIWGP Tag Team Champion (twice withJeff Cobb, once withHenare, and once withCallum Newman)
Oka excelled in amateur wrestling while in school, winning the All Japan Wrestling Championship in the 120 kg Freestyle class in 2012. Oka metTakaaki Kidani, president ofBushiroad in 2013, and was signed toNew Japan Pro-Wrestling (NJPW) shortly after, but didn't begin training until 2015 as he was still in university at the time. In the past, Oka has also competed injudo,karate,sambo,kickboxing,pankration,jiu-jitsu andmixed-martial arts.[3]
Oka began training withNew Japan Pro-Wrestling (NJPW) in 2015, and made his in-ring debut on February 25, 2016, wrestling fellow rookieKatsuya Kitamura to a draw in adark match atLion's Gate Project 1.[4] Oka and Kitamura wrestled to another draw in a dark match on September 1 atLion's Gate Project 3.[5] Oka made his televised debut on January 3, 2017, losing to his trainerYuji Nagata.[6] Oka once again lost to Nagata on January 27,[7] January 31,[8] and February 2.[9] On February 9, Oka,Yoshitatsu andHenare were defeated by Nagata, Hirai Kawato andJyushin Thunder Liger.[10] Oka's first victory came on February 21, when he defeated Henare via referee stoppage after Henare suffered an ankle injury during their match.[11] On April 13 atLion's Gate Project 4, he teamed with his trainer Yuji Nagata to defeat Katsuya Kitamura andManabu Nakanishi.[12] On July 22, he and Nagata defeated Kitamura andHiroshi Tanahashi.[13] Oka then formed a tag team named "Monster Rage" with Kitamura.[14] From October 12 to December 21, Oka took part in the2017 Young Lion Cup, where he finished third with a record of three wins and two losses.[15] Oka and Kitamura made their debuts inAll Japan Pro Wrestling (AJPW) on July 5, 2017, losing toWild Burning (Jun Akiyama andTakao Omori).[16]
On June 30, 2018, Oka debuted a new look and ring name,Great-O-Kharn. He defeatedShota Umino with a new finisher, aMongolian chop delivered from the second turnbuckle. Great O-Kharn started his excursion in theUnited Kingdom with New Japan affiliateRevolution Pro Wrestling and has started with 3 impressive wins and has since reinvented his finisher into a Crossbow submission. At Revolution Pro Wrestling's Summer Sizzler O-Kharn defeated American SuperstarShane Strickland and continued his winning streak into the Rev Pro tapings. On October 13, 2019, The Great O-Kharn teamed withRampage Brown to win theRPW Tag Titles. A month later, on November 24, O-Kharn and Brown unified the RPW Tag Titles with the SWE Tag Titles when they defeated The Moonlight Express.

On October 16, 2020, O-Kharn, now going by the slightly modified ring nameGreat-O-Khan,[17] returned to NJPW duringG1 Climax 30, helpingWill Ospreay defeatKazuchika Okada. He joined Ospreay and his girlfriend,Bea Priestley, in a new faction, The Empire.[18] In November 2020, O-Khan and new member of The Empire,Jeff Cobb would enterWorld Tag League where they finished with a record of 5 wins and 4 losses. The faction would rename itselfUnited Empire in January 2021. O-Khan would wrestle and lose toHiroshi Tanahashi atWrestle Kingdom 15. After Tanahashi defeatedShingo Takagi in the main event ofThe New Beginning in Nagoya to win theNEVER Openweight Championship, O-Khan would attack Tanahashi and then issue a challenge for the following months Castle Attack event. At Castle Attack, Tanahashi would once again defeat O-Khan. In March 2021, O-Khan entered theNew Japan Cup for the first time, where he defeatedTetsuya Naito in the first round, but lost toToru Yano in the second round. Following this O-Khan feuded with Tetsuya Naito culminating in a singles match at the 26th April Road To Wrestling Dontaku event. O-Khan was defeated by Naito in this match.[19] In September O-Khan was announced as a participant inG1 Climax 31, his first appearance in the tournament. He finished the tournament with a record of four wins and five defeats, for a total of 8 points. AtPower Struggle, O-Khan unsuccessfully challengedToru Yano in an amateur rules match for the2021 KOPW provisional championship. O-Khan's 2021 concluded withWorld Tag League, teaming withAaron Henare. The team finished with a score of fourteen points, seven wins and four losses.
O-Khan began 2022 with a loss toSanada atWrestle Kingdom 16 in a special singles match. An entrant in the2022 New Japan Cup, O-Khan was defeated byZack Sabre Jr. in the third round. On April 9, O-Khan and Cobb became theIWGP Tag-team Champions for the first time in both men's careers, during the Hyper Battle series.[20] The two lost the titles atWrestling Dontaku, ending their reign at 22 days. They regained the titles on June 12, atDominion 6.12 in Osaka-jo Hall.[21] After losing the titles atForbidden Door, O-Khan was announced to be a part of theG1 Climax 32 in July, where he would compete in the B Block.[22] O-Khan finished the tournament with 4 points, failing to advance to the semi-finals.[23]
In September, O-Khan made his debut forPro Wrestling Noah, teaming withThe Great Muta andNosawa Rongai to defeatKongo (Tadasuke,Manabu Soya andKenoh), at the finals of theN-1 Victory.[24] In October, O-Khan competed in a tournament to crown, the inauguralNJPW World Television Champion. O-Khan lost in the first round toToru Yano, following being misted by The Great Muta.[25] The following month, O-Khan once again teamed with Aaron Henare in theWorld Tag League, finishing with 10 points, failing to advance to the tournament finals.[26][27] On December 17, O-Khan returned to RevPro winning theUndisputed British Heavyweight Championship, defeatingZak Zodiac, who was replacing championRicky Knight Jr.[28]
On January 4, 2023 atWrestle Kingdom 17, O-Khan entered theNew Japan Rambo, lasting till the final 4 and advancing to the four-way match the following day, for theProvisional KOPW Championship.[29] The following day atNew Year Dash, O-Khan failed to win the Provisional KOPW Championship, after the four-way match was won by Shingo Takagi, with the match also including Toru Yano andSho.[30] Later that month, O-Khan faced Takagi for the provisional title, atThe New Beginning in Nagoya, losing in aMixed Martial Arts rules match.[31] In March, O-Khan entered theNew Japan Cup tournament, receiving abye to the second round, although he lost toDavid Finlay.[32] Later that month, O-Khan successfully defended the Undisputed British Heavyweight Championship against Ricky Knight Jr.[33] In June atDominion 6.4 in Osaka-jo Hall, O-Khan teamed with Aaron Henare in a three-way tag-team match for both the IWGP Tag Team Championships and theStrong Openweight Tag Team Championships, which were both vacant. The match was won byBishamon (Hirooki Goto andYoshi-Hashi).[34] In July, O-Khan lost the Undisputed British Heavyweight Championship to Michael Oku, ending his reign at 204 days.[35] The following week, O-Khan entered theG1 Climax tournament, participating in the B Block.[36] O-Khan finished the tournament with 6 points, failing to advance to the tournament's quarterfinals.[37] O-Khan attacked Takagi, during a post-match interview, before forcing him to lick his boots, as he promised an "execution" at the hands of the United Empire. On September 24 atDestruction, O-Khan was defeated by Takagi.
On January 5, 2024 atNew Year Dash, O-Khan was defeated byTaiji Ishimori in the match to crown the first Provisional2024 KOPW Champion, with Ishimori avoiding O-Khan to win the match. Afterwards, in a post-match interview, O-Khan challenged Ishimori to a rematch.[38] On January 11, both wrestlers proposed the rules for the match, with O-Khan suggesting a Bullrope Deathmatch, after Ishimori drew the ire of O-Khan. On January 22 atThe New Beginning in Nagoya, O-Khan defeated Ishimori to win the provisional 2024 KOPW Championship in a 10-minute Ishimori Ring Fit match. After his win, O-Khan stated that he would be taking the title to be defended around Japan and not simply at the big tour ending dates.[39]
In March, O-Khan took part in the2024 New Japan Cup, before being eliminated from the tournament byTanga Loa on March 7 in the first round in an upset win. Afterwards, Loa began constantly challenging O-Khan; despite O-Khan stating that Loa was not up to the task, this led on March 18, O-Khan finally accepted Loa's challenge leading to the match becoming official three days later.[40] On March 25, ahead of their match, a fan vote was held by each men proposing each stipulation,Jado, on the behalf of Loa, proposed a “King of Kaiju Match", as much like a Texas Deathmatch, with the bout seeing competitors looking to score a pinfall, after which a ten count was applied, with the last man standing being the winner. O-Khan then sneered that ‘that’s something an ape would think up’. Afterwards, O-Khan proposed a "Rural Revitalization Match in Hamamatsu", with O-Khan stating that the match would be a ‘two out of three falls’, but with very different interpretations of falls. The first fall would be held under a ten minute time limit most cover rules, with every pinfall attempt counting as a point in the scenario. The second round would be an eating contest, with the local specialty of eel being the focus for five minutes, while the third would a strap match with two wrestlers connected via a strap with the winner having to touch all four corners consecutively to win the match. O-Khan then reiterated the only way to watch the match was to be live in person; although suggested that fans would be able to see the match later at NJPW World. Two days later, it was announced that O-Khan and Loa would face each other in a Rural Revitalization Match in Hamamatsu, following the result of a fan poll. On March 31, O-Khan defeated Loa to make his first title defense, with O-Khan scoring the second and third falls; despite Loa winning the first fall.
On April 6, atSakura Genesis, O-Khan along with his stablemates Jeff Cobb and Callum Newman lost in a six-man tag team match againstJust 5 Guys (Sanada,Yuya Uemura andDouki), after Uemura directly pinned O-Khan. Uemura who had been gaining momentum since the New Japan Cup, challenged O-Khan, with O-Khan accepting the challenge.[41] On April 18, ahead of their match, a fan vote was held by each men proposing each stipulation, Uemura proposed a Catch Rules Match, alluding to O-Khan’s proficient grappling background while O-Khan once again proposed a "Rural Revitalization Match in Hamamatsu" in a pledge to ‘unite the fiefdoms’ across Japan under his suzerainty. Four days later, it was announced that O-Khan and Uemura would face each other in a Rural Revitalization Match in Hamamatsu, following the result of a fan poll. On April 27, Uemura defeated O-Khan to become the Provisional KOPW Champion after Uemura defeated O-Khan in the first and third falls.[42] He regain it on June 9 atDominion 6.9 in Osaka-jo Hall in a Storm Catch Rules match.[43] From July 20 and August 12, O-Khan took part in the2024 G1 Climax, where he lost his three opening block matches, before bouncing back winning his next five matches including an upset win over IWGP World Heavyweight ChampionTetsuya Naito on August 12, the final day of the tournament, to advance to the A block play-off match to decide the semifinalists of the tournament.[44] At the play-off match, on August 14, O-Khan was defeated by Shingo Takagi.[45] On September 29 atDestruction in Kobe, O-Khan unsuccessfully challenged Tetsuya Naito for the IWGP World Heavyweight Championship.[46]

On April 5, 2025 atSakura Genesis, O-Khan successfully defeatedEl Phantasmo, for the NJPW World Television Championship[47] On April 26, at Wrestling Redzone in Hiroshima, O-Khan andCallum Newman defeatedBishamon (Hirooki Goto andYoshi-Hashi) to win the vacant IWGP Tag Team Championship.[48] On April 29 at Wrestling Hizen no Kuni, O-Khan lost the NJPW World Television Championship back to El Phantasmo.[49]
On the May 25, 2022 episode ofDynamite, O-Khan and Cobb interrupted theROH World Tag Team Championship match betweenFTR andRoppongi Vice, attacking both teams and raising the championships, indicating their intentions of challenging for the championships.[50] On theJune 15 episode ofDynamite, and after O-Khan and Cobb and the rest ofUnited Empire attacked both tag teams, Ospreay was announced to faceOrange Cassidy, whilst O-Khan and Cobb were placed into a triple-threat tag-teamWinner Takes All match for their newly wonIWGP Tag Team Championships and FTR's ROH World Tag Team Championships, along with Roppongi Vice atForbidden Door.[51] At the event, Cobb and O-Khan both failed to capture the ROH World Tag Team Titles, and lost their IWGP Tag Team Titles to FTR.[52]]
Oka is an avidanime fan, citingTantei Opera Milky Holmes as his favorite series.[53][2]
On April 4, 2022, Oka was given a letter of appreciation byKawasaki City police after saving a teenage girl who had been grabbed by a drunk man at JR Musashi Kosugi Station on March 29, 2022. He displayed the letter during his entrance at his next match, to raise awareness for crime prevention.[54][55]