The UFC updated its testing history database in early 2026. In 2025, there were few notable anti-doping penalties, with Conor McGregor being suspended for failing to provide accommodation. Since January 2024, the UFC’s anti-doping program has been run in partnership with Combat Sports Anti-Doping (CSAD) after ending its relationship with USADA. Reflecting his activity, Merab Dvalishvili was the most frequently tested UFC fighter in 2025. According to the latest data, only one fighter has undergone testing so far in 2026.
Marvin Vettori, who recently suffered losses to Brendan Allen at UFC 318 and Bruno Ferreira at UFC 323, is the first athlete tested by the UFC in 2026. Despite a string of defeats and calls for his removal from the roster, the former middleweight title challenger remains under scrutiny, though he currently has no scheduled fights.
The UFC increased its anti-doping tests slightly in 2025 compared to 2024, testing 757 fighters in 3,290 tests compared to 755 fighters in 3,279 tests the previous year. However, the average number of tests per fighter stayed consistent at 4.3.
Fan Take: This update on UFC drug testing highlights the organization’s ongoing commitment to maintaining fair competition and fighter safety, factors that deeply matter to fans. Continued vigilance in anti-doping efforts helps uphold the sport’s integrity and ensures a level playing field for all athletes.
