Fletcher and fellow Australian wrestler Mark Davis team together as Aussie Open, which in turn forms part of the United Empire stable.

He has also made appearances for numerous promotions in England, Wales, Ireland, and Germany in addition to performing in the Australian independent circuit for companies such as Melbourne City Wrestling.

[7] In March 2019, Aussie Open won the wXw World Tag Team Championship before losing them to Ilja Dragunov and WALTER, ending their reign at 147 days.

In May 2019, Aussie Open achieved a massive victory by defeating NJPW's Suzuki-gun (Minoru Suzuki and Zack Sabre Jr.) to win the British Tag Team Championships for the first time.

On 10 April 2022, Aussie Open, made their NJPW Strong debuts, teaming with fellow United Empire stablemate, Jeff Cobb to defeat TMDK.

[13] On 16 April at Windy City Riot, Aussie Open and Cobb, teamed with fellow stablemates, Great-O-Khan, T. J. Perkins and Aaron Henare to defeat Bullet Club representatives, The Good Brothers (Doc Gallows and Karl Anderson), Chris Bey, El Phantasmo and guest member Scott Norton in a 12-man tag-team match.

[20] At Rumble on 44th Street, Aussie Open lost the Strong Openweight Tag Team Championships to The Motor City Machine Guns in a three-way tag-team match also involving The DKC and Kevin Knight, ending their inaugural reign at 76 days.

[40] Fletcher and Davis returned to AEW on the 22 February edition of Dynamite, competing in the Revolution Tag Team Battle Royal, but failed to win.

[43] On 9 March, Fletcher and Davis made their return to Ring of Honor (ROH), which was now AEW's sister promotion, following Tony Khan's purchase of the company, defeating Rhett Titus and Tracy Williams.

[46] On the 25 May edition of Dynamite, Fletcher appeared in a backstage segment, attacking AEW International Champion Orange Cassidy and admiring the title.

[52][53] On the Zero-Hour of All In, Aussie Open lost the ROH World Tag Team Titles to Cole and MJF, ending their reign at 37 days.

At Consejo Mundial de Lucha Libre (CMLL)'s event Viernes Espectacular, Fletcher lost his championship to Atlantis Jr., ending his reign at 196 days.

On 12 October at WrestleDream, Fletcher turned on Ospreay and assisted fellow Don Callis Family member Konosuke Takeshita win the AEW International Championship.

On 30 October at Fright Night Dynamite, Fletcher was confronted by his returning tag team partner Mark Davis over his recent actions.

[62] On the 6 November episode of Dynamite, Fletcher attempted to attack Davis, only to be chased off by Ospreay, disbanding Aussie Open as of result.

[65] Fletcher finished the tournament at the top of his league with 12 points and advanced to the playoff stage on 28 December at Worlds End, where he lost to Ospreay in the semi-finals.

[66][67] At Consejo Mundial de Lucha Libre (CMLL)'s event Viernes Espectacular, Fletcher lost his ROH World Television Championship to Atlantis Jr.. On 17 July 2024, he was announced as a participant in the 2024 Grand Prix.

[68] On 19 August 2024, Kyle Fletcher teamed with Rocky Romero and Robbie X losing against Místico, Atlantis Jr. and Templario at the Arena Puebla.

[69] On 23 August 2024 at the CMLL Grand Prix Internacional 2024 he was eliminated by Atlantis Jr..[70] Fletcher has cited Jeff Hardy as an early inspiration for wanting to become a professional wrestler.