Castillo (2-7) allowed one run on three hits and one walk while striking out nine across seven innings to take the loss Saturday against the Pirates.

EDGE Analysis

Castillo pitched five shutout innings, but his only mistake was giving up a home run to opposing pitcher Gerrit Cole, which led to his seventh loss of the season. He's been very solid over his last three outings, as he's allowed just three earned runs over 17 innings of work, and despite his poor winning percentage, fantasy owners have benefited by his 3.26 ERA to go along with a 1.14 WHIP. He'll make his next start Friday against the Pirates.

Castillo (2-6) allowed two runs on four hits and two walks while striking out eight batters through just four innings during Sunday's loss to Atlanta.

EDGE Analysis

Castillo has now allowed three earned runs or fewer in each of his past five starts and owns a 3.45 ERA, 1.19 WHIP and 9.5 K/9 for the season. Those numbers move the needle in all fantasy settings, and the 24-year-old righty's value is on the rise. It will be difficult to rack up wins starting for the basement-dwelling Reds, but otherwise, there's a lot to like about Castillo's upside moving forward. He lines up to face the Pirates at Busch Stadium in his next start.

Castillo allowed two hits and two walks while striking out seven over six scoreless innings in a no-decision against the Cubs on Tuesday.

EDGE Analysis

Castillo was dominant in this one, with the sharp movement on his fastball and changeup resulting in 14 swinging strikes. He didn't get any help from his offense and remains stuck with just two wins in 11 starts, but Castillo has been the ace of the staff since his arrival to Cincinnati. In fact, he's been one of the better arms in baseball since making the jump from Double-A -- as Mike Petriello of MLB.com pointed out, Castillo had a top-10 xwOBA among starting pitchers even before Tuesday's gem.

Castillo gave up three runs on six hits and three walks while striking out four over six innings in a no-decision against the Padres on Thursday.

EDGE Analysis

The Reds put up 10 runs on the day, but they managed just two during Castillo's time on the mound, and thus Castillo remains with just one win over his last six turns despite four quality starts in that span. He's averaging nearly a strikeout per inning with Cincinnati, but the K's have been down in recent outings -- he's struck out four or fewer in three of his last four starts -- while the walks have been up. The 24-year-old lines up for a two-step next week, with road matchups against the Cubs and Braves on tap.

Castillo (2-5) was charged with four runs (three earned) on three hits over 6.1 innings in a loss to the Cardinals on Saturday. He issued five walks and struck out four.

EDGE Analysis

The 24-year-old was wild at times -- he hit two batters in addition to the five walks -- as he seemed to battle mechanical issues early on. However, he was able to bail himself out throughout much of the night, thanks in large part to the groundball (nine groundball outs). Castillo has posted strong numbers since his callup despite a tough schedule, and is looking like a viable option in most formats, although wins may continue to be hard to come by. He lines up for a home matchup against the Padres his next time out.

Castillo (2-4) tossed eight innings of one-run ball in Sunday's win over the Marlins, allowing three hits and one walk with six strikeouts.

EDGE Analysis

Castillo avoided hard contact masterfully in this one, allowing just one extra-base hit and inducing 10 groundball outs. He also threw 66 percent of his pitches for strikes and was only scored upon when Dee Gordon came around from first on a double in the sixth inning. Castillo's first few outings with the Reds were nothing special, but he has now delivered three quality starts in his last five, posting a 29:9 K:BB during that stretch. He seems to be coming into his own and will carry a 3.56 ERA into Saturday's matchup with the Cardinals.

Castillo (1-4) allowed three runs on seven hits and two walks across five innings in Tuesday's loss to the Yankees. He struck out two.

EDGE Analysis

Castillo flirted with danger on the day but was able to limit the damage to a run-scoring triple-play in the second inning, a sacrifice fly in the fourth and an RBI double from Austin Romine in the fifth. He did induce 10 groundball outs, which undoubtedly helped him navigate the tough Yankees lineup with a respectable outing in hand. Castillo has delivered a series of solid if unspectacular outings since being called up Jun. 23 and will carry a 4.05 ERA into Sunday's matchup with the Marlins.

Castillo (1-3) gave up four runs on four hits and one walk while striking out seven over six innings in a loss to the Diamondbacks on Thursday.

EDGE Analysis

The 24-year-old more than held his own in yet another tough matchup -- in his six starts, Castillo has faced the Nationals twice, the Diamondbacks twice, the Brewers and the Rockies at Coors Field. Despite the tough schedule, Castillo now sits with an impressive 3.86 ERA, 1.26 WHIP and 43:15 K:BB over 35 innings this year, making him pretty easily the Reds' best starter since his callup. However, things won't get any easier for Castillo in the immediate future with a road start against the Yankees lined up for early next week.

Castillo (1-2) allowed three runs on three hits and four walks while striking out six batters through six innings during Saturday's loss to Washington.

EDGE Analysis

Considering the opponent, this was a respectable showing from the rookie. Castillo has now pitched at least five innings in each of his five starts with the Reds and boasts a solid 3.41 ERA, 1.34 WHIP and 11.2 K/9. The strikeouts are particularly impressive, and Castillo also sports an encouraging 56.2 groundball rate. The 24-year-old righty is likely to have some start-to-start inconsistency going forward, but he's definitely worth considering in the majority of fantasy settings. Castillo projects to face the Diamondbacks at Great American Ball Park in his next start.

Castillo (1-1) threw 6.2 scoreless innings Saturday, giving up three hits and one walk while striking out eight Diamondbacks for his first career major-league victory.

EDGE Analysis

The right-hander dazzled a lineup that wasn't starting A.J. Pollock, to be fair, but it's an accomplishment against a typically strong club at a dangerous park in Chase Field. Castillo's heavy fastball and enticing arsenal could play strongly in fantasy leagues if he can refine his control.