In his past four starts, Castillo is 3-1 with a 1.46 ERA, and has worked into the seventh inning in the three wins. During Sunday's 2-1 win over the Cubs, Castillo pitched 6 2/3 innings with two strikeouts and used his changeup to get weak contact.
At Marlins Park, Chen has a 5-3 record and 1.77 ERA in 12 starts. He has struck out 66 in 71 innings at home, and opponents are hitting .190 off him with five home runs. On the road, his numbers are vastly different -- 9.