Although Hellickson started four games for the Rays in 2010, he was technically a rookie this year. He was an integral part of their run to the playoffs. He finished with an ERA of 2.95 and a WHIP of 1.153.
Trumbo put on a show in his rookie season, hitting 29 home runs and knocking in 87. His better defense led me to place him ahead of Eric Hosmer on this ballot.
Another rookie pitcher that was an important part of the starting rotation for a team that made the playoffs, Nova finished the season with an ERA of 3.70 and a WHIP of 1.331.