Billy Allen is the Assistant Coach and Player Development Coordinator for Stanford Beach Volleyball. Since joining in 2023, he has helped guide the Cardinal to record-breaking seasons, including their first MPSF championship and multiple AVCA All-American honors. A former three-time AVP champion and member of the USA Beach National Team, Allen brings elite playing experience along with a strong coaching background at the club, collegiate, and professional levels. He is also the co-host of the Coach Your Brains Out podcast and author of two coaching books.