Personal
- Parents: Damon and Amber Chambers
- Both of his parents attended BYU
- Oldest of four brothers, all of whom play volleyball
- Major: Biochemistry
- Has plans to attend medical school after college
- Also recruited by UCLA, Stanford, Pepperdine, GCU, UCSD and CSUN
- Married to Claire Little of BYU women's volleyball (June 2025)
Mission
- Served a mission for The Church of Jesus Christ of Latter-day Saints in Auckland, New Zealand from July 2022- July 2024
- Church News article about Gavin's choice to serve a mission before playing collegiate volleyball
Before BYU
- 2022 AVCA First Team All-American
- 2022 Gold Medalist 18-Open AAU Nationals
- 2022 All Tournament Team 18-Open AAU Nationals
- 2022 Volleyballmag.com All-American Second Team
- 2022 Gold Medalist 18-Open SoCal Cup Showcase
- 2022 Inland Empire Varsity First Team
- 2021 Gold Medalist 18-Open Third Coast Championship
- 2021 Bronze Medalist 17-Open USAV Nationals
- 2021 and 2022 Varsity Offensive Player of the Year
- 2021 and 2022 Varsity All-League First Team
- 2022 AVCA Best and Brightest First Team
- 2021 and 2022 Varsity All-League Academic Team
- 2021 Scholar Athlete of the Year
- 2022 earned Eagle Scout rank