[15] Page attended Quintin Kynaston School in St John's Wood, alongside Olympian judoka Ashley McKenzie.

[19][20] Growing up, Page was inspired by martial arts films, particularly those of Jackie Chan, Jet Li, Jean-Claude Van Damme, Bruce Lee, and Sammo Hung.

World Championships 2007 (Coimbra) where, at the −89 kg semi-contact division, he won gold after defeating Dave Heffernan.

Austrian Classics Worldcup 2008 (Kufstein), winning gold in the −84 kg semi-contact division over Krisztián Jároszkievicz.

Irish Open 2008 (Dublin), earning silver in the −84 kg semi-contact division after falling short to Raymond Daniels.

Austrian Classics Worldcup 2009 (Walchsee), placing first in both the −84 kg light-contact and semi-contact divisions, defeating Bojan Miskovic and Zvonimir Gribl, respectively.

[41] Page – appointed as the WKA Head Coach[42] – led a team to the WKA World Championships 2009 (Huelva), defeating James Benjamin Stewart to claim gold in the organisation's first semi-contact prize competition[43] and bronze in the −90 kg light-contact division, upon being bested by Tarek Haydar.

World Championships 2009 (Lignano Sabbiadoro) and finished second in the −84 kg semi-contact division, after being defeated by Krisztián Jároszkievicz.

[44] On 4 September 2010, he competed at the World Combat Games 2010 (Beijing) in the −84 kg semi-contact division, where he earned silver, losing gold to Krisztián Jároszkievicz.

[47] When not competing Page trains others in kickboxing, primarily as an instructor at the Hands Down Martial Arts Academies throughout Surrey.

[48] Dissatisfied with the lack of exposure[49] as well as the politics[50] involved in competing among various kickboxing associations, Page decided to cross over into mixed martial arts.

[51][52] He initially considered going to American Top Team[53] during his transition into MMA since his older siblings live in Miami[19] but chose to start his career with London Shootfighters[54] in July 2011.

[59][60] Page made his MMA debut at UCMMA 26 against Ben Dishman on 4 February 2012 and won via technical knockout from a first round tornado kick.

[70][71] However, Irving pulled out of the fight due to a neck injury[13] and was replaced by Jefferson George after another three opponents dropped out within a month for undisclosed reasons.

[74] On 24 June 2012, Super Fight League announced that they signed Michael Page[75] to an exclusive 18-month, four-fight contract.

[76] Page made his promotional debut on 2 November 2012 at SFL 7 as the main event against Haitham El-Sayed, winning by technical knockout in round one via doctor stoppage due to cuts.

[77] Page returned to Super Fight League on 12 April 2013 to face Ramdan Mohamed at SFL 15 as the main event and won via rear-naked choke in the first round.

[79][80] Page was expected to make his promotional debut at Bellator 82 but pulled out of the bout citing surgery for an old injury.

[101] However, Page pulled out of the fight due to a cut over his left eye which was sustained during a guard passing drill[102] and required six stitches.

[141] He won the fight via verbal submission due to a punch in the second round that opened a cut above Rickels' left eye.

[144] He paid tribute to his cousin Helena Ramsay, a victim of the Stoneman Douglas High School shooting, during the open workout and post-fight interview.

[145][146] On 30 July 2018, Page confirmed signing a new six-fight contract with Bellator, three for the tournament and three as part of the champion clause.

[161][162] On 29 December 2019, Page fought Shinsho Anzai at Bellator & Rizin: Japan in a 173 lb catchweight bout.

[182] On 12 July 2017, it was announced that Page signed a three-year, fifteen-fight contract[183] with Hayemaker Ringstar, a promotional joint venture of David Haye and Richard Schaefer.

[184] Page began training under the tutelage of Ismael Salas at Hayemaker HQ on 27 July 2017,[185] alongside Joe Joyce, Qais Ashfaq, and Willy Hutchinson.

"[189] He did commentary for Floyd Mayweather Jr. vs. Conor McGregor in Las Vegas with Mike Costello and Steve Bunce on BBC Radio 5 Live.

[190] Page made his boxing debut on 20 October 2017 at Hayemaker Ringstar Fight Night against Jonathan Castano as the co-main event.

[198] In June 2022, it was announced that Page would make his bare-knuckle boxing debut for Bare Knuckle Fighting Championship.

[203][204][205] As a low-volume movement-based fighter his game plan revolves around controlling distance and landing heavy counterstrikes with high accuracy.

[13][208][209] Page credited his parents, as well as Simon Lewis, and Marvin Francis as being the most influential in his combat sports career.