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The Irish mixed martial artist, Conor McGregor made his Ultimate Fighting Championship (UFC) debut in 2013 against American fighter Marcus Brimage. The 'Notorious' won his first bout by knockout in round one and was awarded "Knockout of the Night" for the first time.

In 2016, McGregor defeated Eddie Alvarez on November 12 for the UFC Lightweight Championship at UFC 205 and became the first fighter to held UFC championships in two different weight classes - Featherweight and Lightweight.

McGregor has competed in 28 MMA fights with 22 victories and 6 losses. In the UFC, the Irish fighter has participated in 14 bouts, winning 10 and losing four.

Here are all the UFC losses of Conor McGregor

Nate Diaz on March 5, 2016, at UFC 196 (Welterweight bout)

The fight against Nate Diaz in 2016 was one of the most infamous bouts of Conor McGregor in the UFC as he witnessed his first loss in the competition after winning seven straight games. After knocking out Jose Aldo to win the UFC Featherweight Championship, which is the fastest knockout in a title bout in UFC history, the Irishman succumbed to Diaz at 4:12 into the second round.

The fight started with both the fighters' landing combinations as Diaz pulled off his famous Stockton Slap while McGregor displayed his brilliant bodywork. With his left arm punches, McGregor drew blood near Diaz's right eye and dominated the first round. However, in the later stages of the round two Diaz landed a few punches on McGregor's skull before securing a rear naked choke. On August 21, Conor defeated Diaz in a rematch at UFC 202 via majority decision.

Khabib Nurmagomedov on October 6, 2018, at UFC 229 (Lightweight Championship)

McGregor was stripped of the UFC Lightweight title due to inactivity and Russian fighter Khabib Nurmagomedov was crowned the champion after defeating Al Iaquinta. The 34-year-old Irish announced his return to the octagon for the first time since November 2016 to fight the undefeated Khabib Nurmagomedov for the championship on October 6 in UFC 229.

The bout was considered as the most-anticipated fight in the history of the UFC due to its pre-match publicity that involved altercation and insults between the two fighters and their supporters. Khabib made McGregor give up in the fourth round with a neck crank. After the fight, Khabib jumped into the crowd and threw punches on McGregor's team while the Irish followed the same path with the Russian's brothers and created one of the biggest UFC controversies ever.

Dustin Poirier on January 24, 2021, at UFC 257 (Lightweight bout)


On March 26, 2019, the Notorious announced his retirement from the UFC on social media, however, it was later ruled out as the Irishman defeated Donald Cerrone in a welterweight bout on January 18, 2020, at UFC 246. After that, McGregor faced Dustin Poirier in a rematch at the UFC 257 on January 24, 2021. Conor lost the fight in the second round through a technical knockout. The defeat via TKO was McGregor's first knockout loss in his career.

Dustin Poirier on July 11, 2021, at UFC 264 (Lightweight bout)


For the third time, McGregor and Poirier squared off in the octagon on July 11 at the UFC 264. After his knockout in the second fight against Poirier, Conor was handed a 6-month medical suspension. The result of the bout was again in the favor of the 33-year-old American, who won the fight through technical knockout in the round one.

Both the fighters tried to grapple and choke each other in the first round before getting back on their feet with 15 seconds remaining in the round. During the last seconds of the bout, McGregor broke his ankle while stepping back and the ringside doctor stopped the bout declaring McGregor unable to continue.

Since his last fight with Dustin Poirier, McGregor has not stepped into the octagon, but the UFC president Dana White was adamant of his return this summer. However, his long-awaited UFC return was again postponed until 2023. The Irish fighter has been working hard on his physique after breaking his leg and teased fans with his bulked up and muscular physique.