Silmon, the league's three-time defending champion in the event, posted a time of 10.04, breaking the previous MW record of 10.13 set by BYU's Kenneth Andam in 2000. Silmon's time was the second-fastest performance of the day, exceeded only by the 10.03 turned in by Illinois' Andrew Riley in the same heat.
Silmon's performance gave him a spot in the NCAA Championships for the third straight year. The championships will be held June 6-9 at Drake University in Des Moines, Iowa.
The top 12 in each event of the NCAA West Region prelims advance to the NCAA Championships.
In other news from Day 2:
San Diego State senior Whitney Ashley, who on Thursday set a Mountain West women's outdoor record in the shot put, qualified for a second event in this year's NCAA Championships when she finished fourth in the discus Friday.
Ashley, the MW outdoor champion in both the shot put and discus each of the past two years, finished with a distance of 181'-03" to advance to the NCAA Championships. Ashley's effort ranks as the second-best of her career and the fifth-best in school history. She threw a career-best 183'-01" at the Mt. SAC Relays in April.
Ashley, who came into the weekend ranked fifth in the discus in the West Region, finished seventh in the discus last year at the NCAA Championships en route to earning first-team USTFCCCA All-America honors.
TCU also produced a pair of NCAA Championship qualifiers in the women's 100-meter dash. Freshman Lorraine Ugen, who on Thursday qualified for the NCAA Championships in the long jump, finished eighth in Friday's 100 meters, posting a time of 11.34. Horned Frogs junior Chaniqua Corinealdi grabbed the 12th and final qualifying spot in the event with a time of 11.41. Corinealdi also advanced to Saturday's quarterfinals in the 200 meters, finishing third in her heat with a time of 23.70.
Boise State junior Rolando Trammel advanced to Saturday's quarterfinals by nailing down the final qualifying spot in the men's 110-meter hurdles. Trammel posted a time of 14.15.
San Diego State junior Kelsy Hintz qualified for the NCAA Championships in the pole vault with a ninth-place effort of 13'-08.25." The vault was the second-best of Hintz's career and the fifth-best in SDSU history.
New Mexico junior Floyd Ross advanced to the NCAA Championships in the triple jump, finishing third overall in posting an effort of 52'-07.25." TCU junior Cameron Parker also qualified in the event, finishing 10th at 51'-04.50."
UNLV senior Brett Zorich is headed to the NCAA Championships after finishing 10th overall in the women's 800 meters (2:05.39).
Air Force senior Jim Walmsley posted a career-best time of 8:51.65 to advance to the NCAA Championships in the men's 3,000-meter steeplechase. Walmsley's performance ranks as fourth-best in Air Force history.
Colorado State senior Nicole Peters and New Mexico senior Ruth Senior both qualified for the NCAA Championships in the women's 3,000-meter steeplechase. Peters finished seventh overall in a time of 10:16.15, while Senior's effort of 10:21.58 was 11th in the field of 48.