Coaching Staff


Pete Berrios
Assistant Coach

In his first season as a collegiate head coach, Berrios helped the 2019 Chestnut Hill College softball team to a 12-win improvement from its previous season. Under his leadership, the Griffins raise their team batting average by over 50 points, dropped their team ERA by over a run and clubbed 19 home runs after hitting just seven the previous year.
Berrios arrived at Chestnut Hill after spending 13 years in collegiate-level skills instruction at some of the most well-known training facilities around the country. He served as assistant baseball coach at Bryant and Stratton College during the 2018 season, helping his team to a 28-24 record. The previous season, Berrios was hitting instructor for Richard Bland College softball, guiding the Statesmen to an NJCAA Region 10 championship. His team ranked among the most powerful offensive units in the country and produced four All-Region 10 selections.
Berrios' prior positions came as a hitting coach and offensive strategist for Lakeland Community College (August 2005 – May 2007), as the national softball director for the Stars and Stripes Sports (December 2011 – present), as part owner of the Georgia Sports (September 2007 – December 2011) and PB (May 1999 – August 2007) Academies.
Berrios led the Michigan Mustangs travel team to Amateur Athletic Union (AAU) National Championships. The achievement earned him head coaching opportunities at five high school programs including Notre Dame Preparatory High School (Michigan), and institutions in Ohio, Alabama, and Florida. All five programs eventually qualified for state playoffs under his guidance, fostering an assistant manager for the Southern Oregon Timberjacks – a Class A Northwest League affiliate of the Oakland Athletics (1996), managerial position with the Frontier League's Ohio Valley Redcoats (1997), and an extended stint as an National Collegiate Athletics Association (NCAA) summer league coach.
In addition, Berrios has seen success in the Super Series (2002), Perfect Game (2004), Barrett Fletcher (2006), and South Carolina (2007) leagues. During the course of his career, he created and developed the "Pure Hitting" method, a world-renowned hitting program that focuses on progressive hitting enhancement and serves as the foundation of his professional hitting instruction.

Berrios is a father to three daughters; Alexandra, Anika, and Addison.


Aaron Vail
Assistant Coach

Vail served as director of softball operations at American Athletics Softball Organization in Irvine Calif., 2018-19 after holding the same position for USA Preps in Camarillo, Calif., the previous year. He worked as an assistant coach and recruiting coordinator at Oregon State in 2015-16 following a stint at Utah Valley from 2013-14.
Prior to joining the UVU staff, Vail spent time as a head coach at the high school and travel ball levels, while also leading the program at Dakota County Technical College in 2010. During his playing career, Vail appeared in 24 ISC World Tournaments, NAFA Men's World Series, AAU Men's International Championships and ASA/USA Softball National Tournaments overs a 16-year career. An ASA Class A All-American infielder in 2015 and ISC 23 & Under All-World choice in 2007, Vail earned two silver medals at the ISC U-23 World Championships and two at the NAFA 23 & Under World Series.

Vail has attained the highest level of certification as a 4-Star Master Coach through the National Fastpitch Coaches Association and is completing his degree in Sports Coaching through the United States Sports Academy.

Vail is a native of St. Paul, Minnesota where he still works in the State Programs office of Special Olympics Minnesota. He, and his wife of 10 years, Andrea, have 4 children. Joshua (13), Easton (7), Beckett (4) & Henry Aaron (3).