A 2025 graduate of Oklahoma Bible Academy, Colby competed as a 5-foot-8 guard for the Trojans at the 2A level under head coach Randy Roth. The Enid, Oklahoma native averaged 9.0 points, 5.5 rebounds, 1.8 assists, and 2.4 steals per game while shooting 39 percent from the field and 27 percent from three-point range during her career. The four-year letterwinner helped the Trojans capture the 2025 state championship after earning state runner-up honors during 2024. Colby also contributed to district championships during 2024 and 2025, along with a regional championship during 2024. She earned Three Rivers All-Conference recognition during 2024 and received Defensive Player of the Year honors during the 2022-2023 and 2024-2025 seasons. She also earned Offensive Player of the Year recognition during the 2023-2024 season.

Colby also competed as a three-year letterwinner in volleyball under head coach Randy Roth, earning Outstanding Player of the Year honors during the 2023-2024 and 2024-2025 seasons. She also received Offensive Player of the Year recognition during the 2022-2023 season and earned NWVC Most Outstanding Player honors during 2024. The multi-sport athlete also competed in track and field for one season under head coach Alan Ford.

Brianna is the daughter of Brian Colby and Courtney Tucker and hopes to major in biology ... chose JBU because it was the one place she felt truly welcomed, the coaching staff was honest and respectful and to grow in her faith.