By The Numbers: Conor McGregor

Conor McGregor needed less than four years to conquer the Ultimate Fighting Championship and become the biggest star in mixed martial arts. Now, the 29-year-old Irishman has wandered into uncharted territory.

McGregor will hang up his MMA gloves to make his professional boxing debut against the great Floyd Mayweather in a lucrative super fight on Aug. 26 at T-Mobile Arena in Las Vegas. It comes attached with a multi-million-dollar payday and the promise of unprecedented stardom if he somehow manages to upset Mayweather, a five-division world champion with wins over Oscar De La Hoya, Saul “Canelo” Alvarez, Manny Pacquiao, Shane Mosley, Juan Manuel Marquez and Ricky Hatton. McGregor has not fought since he disposed of Eddie Alvarez with punches at UFC 205 on Nov. 12 and walked away with the lightweight title at Madison Square Garden in New York.

As he has morphed into a fully formed combat sports superstar, McGregor has compiled his share of intriguing statistical data:

0: Professional boxing matches on McGregor’s resume ahead of his showdown with Mayweather, who is a perfect 49-0.

8: McGregor’s age when Mayweather claimed bronze at the 1996 Summer Olympics in Atlanta. By the time McGregor made his MMA debut in March 2008, Mayweather was already 39-0 as a pro boxer.

637: Days McGregor will have held a UFC championship by the time he climbs into the ring against Mayweather. He has not made a single title defense. McGregor engaged in a two-fight series with Nate Diaz at 170 pounds and was stripped before ever risking the featherweight crown he won from Jose Aldo, and he has yet to defend the lightweight belt he captured at the expense of Eddie Alvarez.

20,427: Fans who witnessed his historic victory over Alvarez at UFC 205, where he became the first fighter to ever hold Ultimate Fighting Championship titles in two weight classes simultaneously.

12: Knockdowns landed inside the Octagon, per FightMetric. It ties McGregor with Junior dos Santos for sixth on the active list, trailing only Anderson Silva (18), Donald Cerrone (14), Thiago Alves (13), Lyoto Machida (13) and Mauricio Rua (13).

13: Opponents the “Notorious” Irishman has stopped inside one round. It includes four-, 13-, 16-, 66- and 67-seconds finishes.

9: Post-fight bonuses won in the UFC. McGregor has been awarded six “Performance of the Night” bonuses, one “Knockout of the Night” bonus and two “Fight of the Night” bonuses. The total haul: $460,000.

3: Times the SBG Ireland superstar has been submitted, accounting for each of his career losses. Diaz, Joseph Duffy and Artemij Sitenkov were the perpetrators.

85.7: Percentage of McGregor wins that have come by knockout.

6,475,000: UFC pay-per-views sold with McGregor in a main event or co-main event slot, according to various reports and estimates.

.751: The cumulative winning percentage of the nine men McGregor has defeated -- Alvarez, Diaz, Aldo, Chad Mendes, Dennis Siver, Dustin Poirier, Diego Brandao, Max Holloway and Marcus Brimage -- since he joined the UFC roster in April 2013.

5.82: Strikes landed per minute in UFC competition. In the history of the promotion, only Leslie Smith (7.56), Joanna Jedrzejczyk (6.87), Nikita Krylov (6.55), Cain Velasquez (6.49), Joanne Calderwood (6.28), Jessica Andrade (6.09) and Thomas Almeida (6.00) have connected at a higher clip than McGregor.