IWWF Anti -Doping Rules 2021   Page 16 of 88 Pages  Specified Method  or Substance of Abuse  is final and shall not be subject to any challenge by an Athlete  or other Person  including, but not limited to, any challenge based on an argument that the substance or method was not a maski ng agent or did not have the potential to enhance performance, represent a health risk or violate the spirit of sport.