Rockies pitching prospect Tyler Matzek is enjoying a successful first season as a professional. Matzek, a left-hander pitching for Single-A Asheville of the South Atlantic League, is 5-1 with a 2.75 ERA in 15 starts. He has 78 strikeouts (against 51 walks) in 78 2/3 innings. Opposing batters are hitting .207 against Matzek.