[4][7][12] During his senior year, he worked as a dishwasher at Dirty Dave's Pizza Parlor while saving money to attend wrestling school.

[7] It was there that Kendrick adopted the ring name Spanky,[4][2] a nickname he was given due to his method of staying awake during long drives on the indy circuit.

[2] He made his WWE debut on the edition of January 11, 2003, of Velocity under the gimmick of a mascot representing the local sports team of the town in which he was competing.

He returned to Pro Wrestling Zero1 as "Spanky" and was quickly pushed to capture the NWA International Lightweight Tag Team Championship.

[31] Although he lost the tag titles in March, Kendrick, as Spanky, received a singles push, and won the Zero-One United States Openweight Championship that same month.

He then returned to ROH, as well as debuting on its sister promotion Full Impact Pro (FIP) on December 17, 2004, winning the first ever Florida Rumble.

[50] Their first main competition for the titles came when K. C. James and Idol Stevens defeated the champions in a non-title match, in early August, igniting a storyline feud between the two teams.

[51] During the rivalry, WWE Diva Ashley Massaro began accompanying London and Kendrick to the ring, acting as a valet to the team while combating the actions of James and Stevens' manager Michelle McCool.

[52] On October 14, London and Kendrick became the longest reigning WWE Tag Team Champions until 2016, surpassing MNM's previous record of 145 days.

[62][63] In the storyline, London missed a moonsault from the ring apron to the floor during the title match, injuring his ribs, leaving Kendrick to battle Deuce 'n Domino alone.

[79] After defeating Charlie Haas and Robbie McAllister on Heat, London and Kendrick said they were ready to win the World Tag Team Championship.

[80] He made his return to the brand on the July 18, 2008, airing of SmackDown, as a heel, with new ring attire, changing his name to The Brian Kendrick and accopained by Ezekiel Jackson.

He won a match on Raw after defeating Carlito on the May 11 episode before declaring his intention to win the Unified WWE Tag Team Championship; in the following weeks, Kendrick tried several unsuccessful pairings.

[90] On January 30, 2010, at PWG's WrestleReunion 4 the Young Bucks decided that Kendrick did not fit in with them and turned on him, only for him to be saved by his old tag team partner Paul London.

[96] On the May 3, 2010, edition of TNA Impact!, Kendrick turned face by having a confrontation with his partner Douglas Williams after their match against Ink Inc. (Shannon Moore and Jesse Neal), but then Samoa Joe came out and attacked both of them.

[107] On the edition of July 21 of Impact Wrestling, Kendrick made his first successful defense of the X Division Championship by defeating Alex Shelley, following outside interference from Austin Aries.

[109] On August 7, 2011, at Hardcore Justice, Kendrick successfully defended the title against Alex Shelley and Austin Aries in a three-way match.

[115] Three days later Kendrick, Gedo and Jado were eliminated from the J Sports Crown Openweight 6 Man Tag Tournament in the first round by the team of IWGP Heavyweight Champion Hiroshi Tanahashi, Kushida and Máscara Dorada.

On May 11, 2012, New Japan announced that Kendrick would return to the promotion to take part in the 2012 Best of the Super Juniors tournament as Davey Richards' replacement.

[120][121] Kendrick returned to New Japan on October 21, when he and Low Ki entered the 2012 Super Jr. Tag Tournament as "Chaos World Wrestling Warriors".

[130] Kendrick then began working as a trainer for WWE and was tasked in training Eva Marie and Tough Enough Season 6 contestants Daria Berenato and Mada Abdelhamid.

[135] On August 26, Kendrick was eliminated from the tournament in the quarterfinals by Kota Ibushi, with his performance moving color commentator Daniel Bryan to tears and drawing an ovation from the live crowd.

[137] On the September 19 episode of Raw, Kendrick made his official main roster return, winning a number one contender's fatal four-way match against Cedric Alexander, Gran Metalik and Rich Swann for the WWE Cruiserweight Championship.

After going to a local medical facility, it was revealed that Kendrick suffered a fracture to his orbital bone and nasal bridge and would be out of action for two months.

On the December 19, 2018, episode of 205 Live, Kendrick returned to his old clean shaven look and blonde hair as he and Tozawa defeated Gulak and Gallagher in a Street Fight match to end the feud.

On the February 26 episode of 205 Live, Kendrick was defeated by Drew Gulak in the first round of the tournament to decide the number one contender for the Cruiserweight Championship at WrestleMania 35.

[153] Kendrick would continue wrestling on 205 Live in the coming months losing to the likes of Ashante "Thee" Adonis (Tahuti Miles), Isaiah "Swerve" Scott and Mansoor.

[170] In 2011, Kendrick told the conspiracy theory website Truth is Scary that he believed the September 11 attacks were faked with holograms and that the killing of Osama bin Laden never happened.

[171] In 2013, a Highspots Wrestling Network video interview titled Brian Kendrick Presents: The Kendrick Theory featured him discussing his belief that the Sandy Hook Elementary School shooting was faked and that Holocaust gas chambers were used for delousing rather than murder, as well as repeating a false claim that the Red Cross had once admitted that "only 250,000 Jews were killed" during the Holocaust and that the number was exaggerated in order to justify the creation of Israel.

[172] Kendrick's comments, along with additional statements regarding his belief in other conspiracy theories, went largely unnoticed until they resurfaced in February 2022 and resulted in mass outrage on social media; his scheduled AEW Dynamite debut, which had been announced the previous day, was cancelled.