The table below represents the average detection times associated with popular anabolic steroids, testosterone esters, and supplements commonly used in bodybuilding or performance enhancement. These are only averages, and you should therefore use the information found here as a basic guideline. Also, keep in mind that these detection times are only true for athletes or bodybuilders who may be subject to urine tests; they do not adequately represent detection times for anyone who may be subject to a blood test. What’s more, hair follicle tests are typically not used for steroid testing.
Stephan Bonnar and Josh Barnett , mixed martial arts (MMA) fighters from the UFC and PRIDE Fighting Championships , have also tested positive for the banned substance.  After the World Extreme Cagefighting show on January 20, 2006 Muay Thai turned MMA fighter Kit Cope also tested positive for boldenone.  Following the Strikeforce card on June 22, 2007 former PRIDE and UFC fighter Phil Baroni tested positive for boldenone, as well as stanozolol .  At a K-1 WGP event in Las Vegas on August 17, 2007 two fighters, Rickard Nordstrand and Zabit Samedov , both tested positive for boldenone.  Alexandre Franca Nogueira tested positive for boldenone in July 2008.