[1] Berg began his amateur career with the Coquitlam Adanacs Jr. A of the BC Junior A Lacrosse League in 2010.

[8] Prior to joining the University of Denver Pioneers, Berg attended and played lacrosse at Charles Best Secondary School in Coquitlam, British Columbia.

Playing for Coach Bill Tierney at Denver, Berg started at midfield in his freshman season.

He was named the Eastern College Athletic Conference (ECAC) Rookie of the Year after finishing the season tied for second on the team in goals (26) and fifth in points (37).

[12] Denver was 56–14 in Berg's four years there, with three consecutive trips to the final four as well as one national title in his senior season.

[14] In his rookie season with the Outlaws, Berg appeared in only 2 games scoring his first career goal against the Ohio Machine on May 29, 2015.

[27] Berg was selected to play for Team Canada at the FIL 2014 World Lacrosse Championship in Denver, Colorado.