Cluff is in his sophomore season at Brigham Young University in 2019. In his career with the Cougars, Cluff appeared in 42 games, tallying a batting average of .284. He has recorded 19 hits, 16 runs scored, five doubles, one triple and 10 RBI. Prior to his time at BYU, he attended Rocky Mountain High School, where he lettered three times in baseball and earned All-State honors during his senior season.