How did he get here?: Signed contract prior to 2006 season
Stats: 6'0", 155 lbs, Throws: Right
Age as of April 1, 2010: 22
K/9 Rate: 9.1
BB/9 Rate: 3.7
Groundout/Flyout Rate: 1.00
K:BB Ratio: 2.43
This is Castillo's fourth season in the Astros organization, with the first two in the Venezuelan Summer League, and the past two seasons in Greeneville. Castillo started 11 games for the VSL Astros, going 1-3 with a 2.69 ERA before shifting back to a reliever role in Greeneville. These numbers, on the surface, don't look great. Especially that rough July. But when you compare them to 2008, it gets better.
2008 K/9 Rate: 7.8
2008 BB.9 Rate: 9.1
2008 K:BB Ratio: 0.86
So the strikeouts are up, walks are down, and while his ERA dropped slightly from 5.66 to 5.61, his ERA dropped from 2.13 to 1.72. Not great, but improviement, and that's due to the 21 walks in 20.2IP improving to 14BB in 33.2IP.