Conor McGregor earns most money-per-second in 2021 athletes rich list
It took the UFC star less than seven seconds to earn $1million and for each minute, he inside the octagon he made £6.42million.
A study conducted by OLBG calculated that it takes the Irishman less than seven seconds to pocket $1million.
McGregor earns £6.42million for every minute he spends inside the octagon. Each round in the UFC is five minutes and with his total earnings at £16.25million, it calculates to just over two rounds of action.
In second spot behind McGregor is boxing's biggest name in Saul 'Canelo' Alvarez.
The Mexican superstar dispatched Callum Smith, Avni Yildirim and Billy Joe Saunders to become unified super middleweight world champion.
The highest earning soccer player is Paris Saint-Germain forward Neymar in 17th place with an ability to bag a million dollars in just over half-an-hour.
Elsewhere, soccer duo Cristiano Ronaldo and Lionel Messi remain in the top 25 fastest earning athletes in sport.