USADA posts test statistics on a quarterly basis, by sport and by athlete, as soon as possible following the completion of each calendar quarter.
In response to a high volume of interest in the testing statistics for the professional boxing event held on May 1, 2010 between Floyd Mayweather, Jr. and Shane Mosley, the following is a summary of program information:
Both Mayweather and Mosley were tested a total of eight times by USADA between March 22, and May 1, 2010, with seven of the sample collections occuring with no advance notice leading up to the fight, and the eighth occuring immediately following the fight. All eight of each athlete’s USADA sample collections included urine, and four of these collections for each figher also included blood testing. Samples were collected up through April 26 for urine testing and through April 13 for blood testing, as well as for both urine and blood testing immediately upon conclusion of the figh on May 1. Collections were conducted using a balanced test distribution schedule, and with no allowances for black-out or cut-off dates.
For general questions regarding USADA’s anti-doping program, please visit the FAQs in the Resources section of this site. (Other policy and education publications and videos are also available in this section).
|Athlete||Date of Test||Tested For:||Test Result|
|Floyd Mayweather||March 22, 2010||Blood and Urine||Negative|
|Floyd Mayweather||April 1, 2010||Blood and Urine||Negative|
|Floyd Mayweather||April 3, 2010||Urine Only||Negative|
|Floyd Mayweather||April 6, 2010||Urine Only||Negative|
|Floyd Mayweather||April 13, 2010||Blood and Urine||Negative|
|Floyd Mayweather||April 21, 2010||Urine Only||Negative|
|Floyd Mayweather||April 24, 2010||Urine Only||Negative|
|Floyd Mayweather||May 1, 2010 (After Fight)||Blood and Urine||Negative|
|Shane Mosley||March 23, 2010||Blood and Urine||Negative|
|Shane Mosley||March 29, 2010||Urine Only||Negative|
|Shane Mosley||March 31, 2010||Blood and Urine||Negative|
|Shane Mosley||April 7, 2010||Urine Only||Negative|
|Shane Mosley||April 12, 2010||Blood and Urine||Negative|
|Shane Mosley||April 20, 2010||Urine Only||Negative|
|Shane Mosley||April 26, 2010||Urine Only||Negative|
|Shane Mosley||May 1, 2010 (After Fight)||Blood and Urine||Negative|