Prober is a two-sport athlete at Allan Hancock College. In the fall, he played quarterback for the Bulldog football team. He completed 53 of his 106 passes for 767 yards. He threw 8 touchdowns.
Prober was named the PAC 7 League Most Valuable Player in 2013 for the co-league champion Warriors. He hit .337 with 21 RBI at the plate. On the mound, he went 9-1 with an 1.96 ERA. Prober struck out 64 in 64 1/3 innings.