Keylor Reyes is a native of Alajuela, Costa Rica, where he played at Liga Deportiva Alajuelense, Deportivo Saprissa, Carmelita and Santa Barbara. In addition to representing Costa Rica at the qualification for the 1989 FIFA U-16 World Cup in Scotland, he also played college soccer in the United States at Life University while completing a bachelor's degree in health care management.

He is the academy youth director for Boys/Girls in the Atlanta Fire United Soccer Association and Head Coach for the Georgia Olympic Development Program (ODP). He holds a USSF "A" soccer coaching license and USSF "Y" Youth National License. In addition, he has completed coaching courses at the Universidad Nacional and was the skills director at Superkick in Norcross, Ga. He was also an assistant coach for the Augusta Fireball of the Premier Development League.Keylor is a fluent English and Spanish speaker and served as the Costa Rica U-17 national team liaison officer in the United States ahead of the 2007 FIFA World Cup.