Luis Castillo
Luis Castillo
26-Year-Old PitcherSP
Cincinnati Reds
2019 Fantasy Outlook
Usually it's easy to dismiss first-half/second-half splits, but in the case of Castillo, it's hard to overlook his superb second half, especially when there's an easy explanation for his improvement. Before the All-Star break, Castillo had a 5.49 ERA, 1.65 HR/9, 21.5 K% and 7.9 BB% over 103.1 innings. In 66.1 innings after the break, Castillo turned in a 2.44 ERA, 1.22 HR/9, 26.3 K% and 5.3 BB%. The difference? Every one of Castillo's pitches recovered most of the velocity that he had in 2017 but had lost during the first half of 2018. Take his four-seamer as an example -- in September 2017 it clocked in at 97.3 mph, but in April it was down to 95.4 mph, and stayed down at that level until late July/early August, when it got back up to 96.6 mph (velocity readings courtesy of Baseball Savant). Even with the strong second half, Castillo didn't earn his NFBC ADP of 103.3, but he might exceed that in 2019 if he maintains his second-half velocity. Read Past Outlooks
RANKSFrom Preseason
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$Signed a one-year, $555,000 contract with the Reds in March of 2018.
Quality start in no-decision
PCincinnati Reds
July 20, 2019
Castillo didn't factor into the decision in Saturday's 3-2 win over the Cardinals, allowing one run on five hits and a walk over six innings while striking out four.
Despite producing his fourth straight quality start and 13th of the season, Castillo was actually in line for his fourth loss until the Reds offense woke up and put three runs on the board in the seventh inning. The right-hander will take a 2.36 ERA and 138:57 K:BB through 118 innings into his next outing Friday, at home against the Rockies.
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Left/Right Pitching Splits
Since 2017
BAA Batters K BB H 2B 3B HR
Since 2017vs Left .243 768 190 72 164 41 2 31
Since 2017vs Right .189 778 211 66 132 25 0 19
2019vs Left .214 252 74 29 46 11 0 8
2019vs Right .143 227 64 28 28 6 0 3
2018vs Left .289 351 76 29 91 22 0 18
2018vs Right .203 357 89 20 67 14 0 10
2017vs Left .185 165 40 14 27 8 2 5
2017vs Right .216 194 58 18 37 5 0 6
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Home/Away Pitching Splits
Since 2017
ERA at Home
ERA at Home
ERA at Home
ERA on Road
Since 2017Home 2.83 0.99 197.0 12 11 0 9.9 2.8 1.1
Since 2017Away 4.05 1.33 180.0 10 11 0 9.2 3.9 1.3
2019Home 1.67 0.89 70.0 5 2 0 9.3 3.3 0.4
2019Away 3.38 1.44 48.0 4 1 0 12.4 5.8 1.5
2018Home 3.51 1.07 82.0 6 5 0 10.5 2.0 1.5
2018Away 5.03 1.36 87.2 4 7 0 7.1 3.2 1.4
2017Home 3.40 1.00 45.0 1 4 0 9.8 3.4 1.4
2017Away 2.84 1.15 44.1 2 3 0 9.9 3.0 0.8
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Stat Review
How does Luis Castillo compare to other starting pitchers?
This section compares his stats with all starting pitcher seasons from the previous three seasons (minimum 120 innings)*. The bar represents the player's percentile rank. For example, if the bar is halfway across, then the player falls into the 50th percentile for that stat and it would be considered average.

* Exit Velocity, Barrels/BBE %, Balls Hit 95+ MPH %, and Spin Rate are benchmarked against this season's data (min 70 IP). See here for more exit velocity/barrels stats plus an explanation of current limitations with that data set.
  • K/BB
    Strikeout to walk ratio.
  • K/9
    Average strikeouts per nine innings.
  • BB/9
    Average walks per nine innings.
  • HR/9
    Average home runs allowed per nine innings.
  • Fastball
    Average fastball velocity.
  • ERA
    Earned run average. The average earned runs allowed per nine innings.
  • WHIP
    Walks plus hits per inning pitched.
    Batting average on balls in play. Measures how many balls in play against a pitcher go for hits.
  • GB/FB
    Groundball to flyball ratio. The higher the number, the more likely a pitcher is to induce groundballs.
  • Left On Base
    The percentage of base runners that a pitcher strands on base over the course of a season.
  • Exit Velocity
    The speed of the baseball as it comes off the bat, immediately after a batter makes contact.
  • Barrels/BBE
    The percentage of batted ball events resulting in a Barrel. A Barrel is a batted ball with similar exit velocity and launch angle to past ones that led to a minimum .500 batting average and 1.500 slugging percentage.
  • Spin Rate
    Spin Rate is the rate of spin on a baseball after it is released. It is measured in revolutions per minute (rpm).
  • Balls Hit 95+ MPH
    The percentage of batted balls hit that met or exceeded the 95 MPH threshold.
  • Swinging Strike
    The percentage of pitches that result in a swing and a miss.
96.4 mph
Left On Base
Exit Velocity
87.1 mph
Spin Rate
2088 rpm
Balls Hit 95+ MPH
Swinging Strike
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Defensive Stats
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Stats Vs Today's Lineup
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Past Fantasy Outlooks
The Reds had been trying to develop a frontline starter to fill Johnny Cueto's shoes for a couple years, but it came to them in the unlikely form of Castillo, who was involved two trades and one rescinded trade before reaching the majors. He debuted after just 94.1 innings at Double-A and zero experience at Triple-A. Teams didn't figure him out as the year went on -- his ERA actually improved each month from July to September. Castillo was particularly dominant away from Great American Ball Park (2.84 ERA in 44.1 innings). His .247 BABIP, which would have been fifth lowest among qualified starters, will clearly regress. While we can't bank on a repeat of his rookie ratios, he should still be very effective in year two. He throws three pitches -- a fastball that averages 97.5 mph and tops out around 99-100 mph, an out-of-this world changeup and a rapidly improving slider. He has the stuff, command and size (6-foot-2, 190 pounds) to pitch atop a rotation.
Best known for being traded to San Diego and then sheepishly traded back to Miami when Colin Rea's elbow gave out after the trade, Castillo has emerged as one of the best prospects in a desolate Marlins system. He sports an 80-grade fastball with an above-average changeup and two breaking balls that are works in progress, but there is still plenty of time for refinement in the upper levels of the minors. That incomplete repertoire was still more than enough to dominate Florida State League hitters. The lack of strikeouts despite cheddar that touches triple digits illustrates his lack of a consistent out pitch, so he will need to continue to improve those offerings if he hopes to have success as a starter at Double-A and Triple-A. He is relatively new to starting, having worked exclusively as a reliever from 2012 to 2014, so becoming more adept at sequencing will also help him miss more bats. This is an arm that could take a big jump up prospect lists this year, especially now that he's in a Reds' system in the middle of a complete rebuild.
More Fantasy News
Fans 10 in win
PCincinnati Reds
July 15, 2019
Castillo (9-3) allowed three runs on seven hits and three walks over six innings Monday, striking out 10 and earning the win over the Cubs.
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Tosses gem for eighth win
PCincinnati Reds
July 4, 2019
Castillo (8-3) earned the win after allowing just one hit and one walk while striking out nine batters over 7.2 frames to beat the Brewers on Thursday.
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Pitches brilliantly in defeat
PCincinnati Reds
June 29, 2019
Castillo (7-3) allowed one run on three hits with six strikeouts and three walks across seven innings while taking a loss against the Cubs on Saturday.
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Walks five in loss
PCincinnati Reds
June 22, 2019
Castillo allowed six runs (four earned) on five hits with six strikeouts and five walks across 3.2 innings while taking a loss against the Brewers on Saturday.
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Works around six walks in win
PCincinnati Reds
June 17, 2019
Castillo (7-1) allowed two runs on two hits with seven strikeouts and six walks across six innings while earning a victory against the Astros on Monday.
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