Castillo (10-12) picked up the win against the Cubs on Sunday, giving up one earned run on four hits over 6.2 innings, striking out two and walking four in the Reds' 2-1 victory. It was the third win in his last four starts for the right-hander, who has been faring much better during the second half of the season after a rough start to his 2018 campaign. He wasn't at his best Sunday, with four free passes against just two strikeouts, but he still managed to work deep into the game, needing 98 pitches to make it through his 6.2 innings. His 4.52 ERA through 161.1 innings still isn't especially inspiring, but the young right-hander is at least showing flashes of the ability he demonstrated as a rookie last season, when he posted an excellent 3.12 ERA and 1.07 WHIP over 89.1 innings.
Castillo's two-seam fastball was averaging 97.1 mph in Tuesday's start against the Dodgers, and he topped out over 98 mph, MLB.com's Mark Sheldon reports. This is an encouraging sign for Castillo. His velocity had dipped earlier in the season, to the point where he was averaging 95.4 mph on his two-seamer overall, down two mph from 2017. One consequence of the velocity improvement is that it made his changeup that much more effective. It's been a bumpy season for Castillo, but his post-break numbers are a good reason to be encouraged.
Castillo (9-12) earned the win against the Dodgers on Tuesday, allowing one run on four hits over 6.1 innings. He struck out nine and walked only one. The only blemish for Castillo was Joc Pederson's solo home run during the sixth inning, and the right hander has now allowed only three earned runs in his three starts this month. The 25-year-old has a 4.66 ERA, 1.25 WHIP and 158 strikeouts over 154.2 innings, and is next set to take the mound Monday at Milwaukee.
Castillo (8-11) allowed two hits and two walks while striking out 11 across 6.2 scoreless innings to earn the win Saturday against the Cardinals. Castillo flashed his tantalizing potential again Saturday, dominating the Cardinals by recording 18 of his 20 outs via either strikeout or groundball. He was plenty deceptive -- he generated 20 swinging strikes on 104 total pitches -- and set a new career-high with the 11-strikeout performance. Castillo has been much improved since the All-Star break, turning in a 3.15 ERA to go along with 46 strikeouts in 40 innings despite two starts in which he allowed five earned runs.
Castillo (7-11) took the loss Saturday, surrendering five runs on five hits and a walk over 3.1 innings while striking out two as the Reds fell 10-6 to the Cubs. Wrigley Field played very small in this one, as Daniel Murphy and Kyle Schwarber each tagged Castillo for a two-run homer before his quick exit. That's unfortunately nothing new for the right-hander, who's now coughed up 24 home runs in 26 starts (1.6 HR/9). He'll take a 5.07 ERA with him to the mound next Saturday in St. Louis.