The Ultimate Fighter (TUF) 18 Finale drug test results are in from the Nevada State Athletic Commission (NSAC), which today confirmed that all 20 fighters tested for illegal/banned substances after competing at the "Maynard vs. Diaz" mixed martial arts (MMA) event on Nov. 30, 2013 in Las Vegas have all passed with flying colors.
Each combatant was screened for performance enhancers such as steroids and drugs of abuse like cocaine and marijuana, among others.
Results from these battery of tests all returned negative.
TUF 18 Finale featured a main event of Nate Diaz ending his trilogy with Gray Maynard by knocking "The Bully" out in the very first round. The co-headlining attractions saw the crowning of two new Ultimate Fighters, as Chris Holdsworth won the men's glass trophy by submitting David Grant while Julianna Pena stopped Jessica Rakoczy on the women's side.