In the record provided by the Nevada State Athletic Commission (NSAC) to Yahoo Sports, both Mayweather and Pacquiao gave 11 urine and eight blood samples.
Both Mayweather and Pacquaio agreed to the random blood and urine testing to be carried out by USADA after the two signed the fight contract for the May 2 bout.
“It’s a strong statement of the importance of clean and safe competition to have these two fighters voluntarily agree to have a WADA level anti-doping program implemented for this fight. We commend them for their stand for clean sport and the message it sends to all those who want to compete clean at the highest levels of all sport,” said USADA CEO Travis T. Tygart.
During the fight negotiations, Mayweather insisted he and Pacquiao submit to the Olympic-style random blood and urine testing by USADA, but Pacquiao initially balked, saying he feels weak when blood is drawn on days closer to the fight.
Pacquiao suggested a reasonable testing window but Mayweather held on to his demand. Eventually Pacquiao agreed without preconditions.
After the signing of the fight contract, Pacquiao’s longtime adviser Michael Koncz dared Mayweather to agree to a $5 million penalty if either of them is found positive of using performance enhancing drugs.
Mayweather declined saying Koncz should have brought it up during the fight talks.