All fighters who underwent drug testing at this past month’s UFC on FOX 8 event successfully passed their tests.

MMAjunkie.com (www.mmajunkie.com) today confirmed the results with the Washington State Department of Licensing, which oversaw the network-televised event.

UFC on FOX 8 took place July 27 at Seattle’s KeyArena. In the headliner, UFC flyweight champion Demetrious Johnson successfully defended his title with a submission win over John Moraga.

In addition to Johnson and Moraga, other tested fighters included main-card competitors Rory MacDonald and Jessica Andrade, as well as preliminary-card fighters Mac Danzig, Daron Cruickshank, Ed Herman, Germaine de Randamie, Aaron Riley and Yaotzin Meza.

Six were winning fighters, and four were losing competitors.

All tested negative for drugs of abuse (such as marijuana and cocaine), as well as anabolic steroids and other performance-enhancers.

As MMAjunkie.com previously reported, the state issued no exemptions for testosterone-replacement therapy.

For complete coverage of UFC on FOX 8, stay tuned to the UFC Events section of the site.

(Pictured: Demetrious Johnson)