Needing to finish in the top three of five qualifying heats or gain entry via his time, Morris finished fifth in the fifth heat with a clocking of 10.63 seconds at the U.S. Olympic Trials at Hayward Field.
Justin Gatlin, the winner of Morris' heat, posted the afternoon's top time of 9.90 seconds. Also finishing ahead of Morris in his heat were Trell Kimmons (10.11), Charles Simon (10.17) and Justin Austin (10.43).
The top four overall finishers behind Gatlin, who was running unattached, were American and meet record-holder Tyson Gay (10.00), Ryan Bailey (10.03), Walter Dix (10.03) and Michael Rodgers (10.05).
Gay, who is backed by adidas, ran a 9.69 in 2009 to set the American 100-meter record and set the meet record with a 9.77 timing in 2008.
Sunday's 100 meter semifinals will feature the 21 racers who advanced from Saturday's qualifying heats - 15 based on their 1-3 finishes and six based on their times. Former CU sprinter Jeremy Dodson had hoped to compete Saturday but did not make the qualifying field.
The Buffs have no current or former athletes competing on Sunday, but Monday's schedule is liberally sprinkled with names familiar to CU track and field followers.
Emma Coburn, the 2011 NCAA 3,000 meter steeplechase champion, and Shalaya Kipp, the 2012 NCAA champ, will attempt to qualify in that event.
CU assistant coaches Casey Malone (discus) and Billy Nelson (steeplechase) will try to move on in their events. Also scheduled to participate on Monday are former Buff athletes Lesley Higgins (steeplechase) and Laura Thweatt, Renee Metivier Baillie, Kenyon Neuman, Dathan Ritzenhein and Brent Vaughn - all in the 5,000 meters.
CU graduate student Jessica Tebo, who transferred from Seattle Pacific University, has been scratched from the 5k race.