Coming into the 2012 season Ismael Guillon was looking for a big rebound after having a downright poor season the year before with the Billings Mustangs. He struggled with his control and saw his ERA well over 6.00.
When his season began in June he managed three games before the month was up, though none of them lasted more than 4 innings. For the month he totaled 11.2 innings over three games with a 5.40 ERA and 1.89 WHIP to go with 8 walks and 14 strikeouts. The strikeouts were nice, but his walk rate was still high.
When July rolled around, things changed for the most part. The left hander made five starts on the month, four of which were outstanding and three were scoreless affairs. On the 22nd he battled his control and walked 4 batters and struck out just 3 in 3.1 innings. He would finish the month with 23.1 innings pitched, 8 walks and 28 strikeouts to go along with a 1.16 ERA and a 1.07 WHIP. He took a nice step forward with his control during the month.
In August he would split his time between Billings and Dayton. He would make three starts for the Mustangs. The first two weren’t bad, but they weren’t good as they spanned 10 innings with a 3.00 ERA, but he did walk 7 and strike out 11. However in his final start for the Mustangs on the 13th Guillon would threw 6 shutout innings with a walk and 10 strikeouts. He was promoted to Dayton and made his first start on the 19th, throwing 6 shutout innings with 2 walks and 5 strikeouts. He made two most starts for the Dragons on the month, finishing with 17.2 innings for Dayton with 6 walks and 18 strikeouts along with a 2.55 ERA and a 1.25 WHIP.
Guillon would wrap up is turnaround season with one final start in September for Dayton. On the 3rd he toed the rubber and threw 7 innings where he allowed 2 runs on 6 hits and a walk with 9 strikeouts.
The 2012 season was a resounding success for Ismael Guillon. Coming off of a terrible and forgettable 2011, he showed big improvements in control and took on two levels with big success at each. While he is in the second tier of starting pitching prospects in the system, the lefty has quality stuff and began to show some stamina in the second half of his season. He still needs to improve his breaking ball, but he has made big strides and finds himself back in the prospect talks.