Here is some very interesting data put together by twitter user @dimspace on the U.S. Anti-Doping Agency’s testing done on the UFC ranked fighters for every division.
The data depicts the number of fights the athlete has had since October 2015 and the number of times they have been tested by USADA.
— Dave/Dim (@dimspace) June 30, 2016
According to the data, UFC featherweight champion Conor McGregor and former UFC women’s bantamweight champion Holly Holm have been tested the most with 13 times. On the opposite end of the spectrum, #12 ranked middleweight Thales Leites and #8 ranked women’s strawweight Maryna Moroz have never been tested by USADA and both have had one fight since October 2015.