|High School:||Cherry Creek|
2019: During the victory over Willamette Mastin had 3 ground balls and scored 1 goal for the Loggers (Mar. 17) ... Mastin scored 3 goals for the Loggers during their victory over JWU (Denver) (Mar. 19) ... 2 goals for Mastin in the game against Whitman (Mar. 30) ... 4 goals for Mastin in the Logger victory over Whitworth (Mar. 31) ... Mastin scored 2 goals, with 1 ground ball and a draw control during the game against Whitman (Apr. 20) ...