Bautista opened with a bye and defeated Robert Verzaal from Baylor (6-4, 4-6, 6-2) and Arizona's Giacomo Miccini (4-6, 7-5, 6-3) to reach the finals.
Sophomore Jordan Szabo from Australia dropped his second-round match to Tin Ostojic of Wichita State, 7-5, 4-6, 6-3. Szabo picked up a win in a bonus match against Harnish Weerasinghe of Bradley, 6-3, 5-7, 6-4.
Sophomore Jackson Withrow from Omaha, Nebraska, reached the third round with a 6-1, 6-3 straight sets victory over Alexander Golding of Pacific in the second round. Rodolfo Bustamante from TCU won a three-set decision, 7-5, 6-7, 6-1.
Redshirt freshman Behzad Minavi from Houston lost in his first round match against Erick Reyes of Wichita State, but bounced back with a 6-2, 6-4 victory over Eric Sock of Nebraska in a bonus match.
True freshman Harrison Adams from New Braunfels reached the third round by virtue of a 6-3, 7-5 victory over Clemson's Austin Ansari in the second round, but dropped the third round match, 5-7, 6-2, 6-1 to Hunter Nicholas of San Diego State.
In Monday's qualifying men's singles matches, the Aggies will send sophomore Jeremy Efferding from Boca Raton, Florida, against Hunter Callahan of Ohio State at 2 p.m. and true freshman Shane Vinsant from Keller, Texas, will face BYU's Patrick Kawka, the No. 15 seed in a match scheduled for 5:30 p.m.
PRE-QUALIFYING SINGLES RESULTS:
Alberto Bautista (9), first round bye
Alberto Bautista (9) def. Robert Verzaal, Baylor, 6-4, 4-6, 6-2 (Second round)
Alberto Bautista (9) def. Giacomo Miccini, Arizona, 4-6, 7-5, 6-3 (Third round)
Romain Bogaerts (19), Mississippi State def. Alberto Bautista (9), 6-3, 4-6, 6-4 (Finals)
Jordan Szabo (27), first round bye
Tin Ostojic, Wichita State def. Jordan Szabo (27), 7-5, 4-6, 6-3 (Second round)
Jordan Szabo def. Harmish Weerasinghe, Bradley, 6-3, 5-7, 6-4 (Bonus Match)
Jackson Withrow (28), first round bye
Jackson Withrow (28) def. Alexander Golding, Pacific, 6-1, 6-3 (Second round)
Rodolfo Bustamante, TCU def. Jackson Withrow (28), 7-5, 6-7, 6-1 (Third round)
Erick Reyes, Wichita St. def. Behzad Minavi, Texas A&M, 7-5, 6-0 (First round)
Behzad Minavi, Texas A&M def. Eric Sock, Nebraska, 6-2, 6-4 (Bonus Match)
Harrison Adams (15), first round bye
Harrison Adams (15) def. Austin Ansari, Clemson, 6-3, 7-5 (Second round)
Hunter Nicholas, San Diego St. def. Harrison Adams (15), 5-7, 6-2, 6-1 (Third round)
MONDAY MATCHES: Qualifying Men's Singles
2 p.m. Jeremy Efferding, Texas A&M vs. Hunter Callahan, Ohio St.
5:30 p.m. Shane Vinsant, Texas A&M vs. Patrick Kawka (15), BYU