Gus was a sophomore outfielder at Columbia University in 2012-13, and hit .324 (11-34) in 32 games, with four RBIs. As a freshman at Columbia in 2012, Gus hit .182, with no homers and four RBIs. He then hit .255 in 48 games for the Torrington (Conn.) Titans in the Futures League, with a one homer and 19 RBIs.
He grew up in Eugene and graduated from South Eugene High School. He lettered in baseball, basketball and football at SEHS and was a team captain in each sport. He was a four-time Midwest League all-star in baseball and hit .417 as a senior.