The Art of Fighting art exhibit Experience MMA through the works of contemporary urban artist Justin Bua, Octagon Girl Brittney Palmer and modern-day surrealist Brian Kirhagis. July 3, noon-8 p.m.; July 4, 2-10 p.m., free. The Gallery, 1217 Main St.

Ulti-Man 5K run Celebrate the Fourth of July and UFC Fight Week with a 5K for all fitness levels in the heart of Downtown. The run features UFC Fit-inspired stations and a warm-up led by UFC Fit coach Mike Dolce and UFC women’s bantamweight, Miesha Tate. July 4, 7 a.m., $50. Check-in at Hogs & Heifers, ufc.com/fightweek.

Lion Fight 16 The 5-foot-10 Muay Thai champion and Las Vegan Kevin Ross will go toe-to-toe with Australia’s Michael Thompson in the main Lion Fight event. July 4, 8 p.m., $59-$99. The Pearl, 702-944-3200.

Papa Roach, P.O.D. and Lit Kick off UFC fight week when “Last Resort” rockers Papa Roach join P.O.D. and Lit in a free Rock of Vegas summer concert under the Viva Vision canopy. July 4, 9 p.m., free, 18+. Fremont Street Experience.

UFC Fan Expo At the world’s largest UFC fan event, take a special training session, meet your favorite UFC fighters and get autographs from your fight idols. July 5, 10 a.m.-5 p.m.; July 6, 10 a.m.-4 p.m., $45-$60. Mandalay Bay Convention Center, ufc.com/fightweek.

UFC 175 UFC middleweight champion Chris Weidman faces former light heavyweight champion Lyoto Machida in the main event, with Ronda Rousey vs. Alexis Davis in the co-feature and an undercard highlight of Urijah Faber vs. Alex Caceres. July 5, 4 p.m., $128-$1,253. Mandalay Bay Events Center, 702-632-7580.

Ultimate Fighter finale: Edgar vs. Penn Lightweight champs Frankie Edgar and BJ Penn will face off in the Octagon for a third time, marking their first fight as featherweights. July 6, 3 p.m., $53-$178. Mandalay Bay Events Center, 702-632-7580. -Leslie Ventura