Texas Rio Grande Valley Athletics

2023 Outdoor Track & Field (Freshman): Competed in three meets ... Was 5th in the 1,500-meter run at the Cactus Cup ... Finished 5th in the 5,000-meter run at the Texas Invitational ... Ran a 5:06.84 PR in the 1,500 at the J. Fred Duckett Twilight. 

2023 Indoor Track & Field (Freshman): Competed in the mile at the Robert Platt Invitational, finishing 21st. 

2022 Cross Country (Freshman): Was 100th at the Western Athletic Conference Championships (6K) ... Finished 267th at the Arturo Barrios Invitational (6K) in a 6K PR of 25:02.3 ... Finished 58th in her collegiate debut at the UIW Twilight (4K). 

2018-2022 (Los Fresnos High School): Guillen competed in the 800- and 1,600-meter runs for the Lady Falcons. She finished seventh and sixth, respectively, at the 2022 district meet, and was 10^th in both events at the 2021 district meet. Guillen holds personal records of 2:31.02 in the 800 and 5:38.87 in the 1,600.