Luis Castillo
Luis Castillo
28-Year-Old PitcherSP
Cincinnati Reds
2021 Fantasy Outlook
By FIP, Castillo had a better season than former teammate and NL Cy Young winner Trevor Bauer. The surface numbers lagged way behind his indicators early on, and while they caught up to an extent, Castillo still finished well below where the underlying numbers say he deserved to be. Castillo's changeup is one of the most dominant pitches in baseball, and it plays off a heater that sits 97 mph. His slider has developed into a strong offering, making Castillo something close to a nightmare for right-handed hitters. Great American Ball Park in Cincinnati has not been a problem for Castillo, historically, as he has an ERA nearly a run better at home (3.18) than on the road (4.15 ) in his career. The Reds do not project to be any better with the team cutting costs this offseason, but Castillo is still only 28 years old and this is unquestionably an ace profile on its own merit. Read Past Outlooks
RANKSFrom Preseason
#30
ADP
$Signed a one-year, $4.2 million contract with the Reds in January of 2021.
Hits double-digit losses
PCincinnati Reds
June 21, 2021
Castillo (2-10) allowed three runs (two earned) on six hits and three walks while striking out seven over six innings as he took the loss to the Padres on Sunday.
ANALYSIS
All three runs Castillo gave up came off one swing. Wil Myers came up with two men on in the third and cleared the bases with a triple off the right field wall. He ended up scoring on the play due to a throwing error when the Reds tried to get him out stretching for three. Castillo pitched well enough for the win but will now stand at 10 losses after a horrible first two months of the season. He's rebounded well over his last four starts with a 2.19 ERA, 0.93 WHIP and 26:10 K:BB over 24.2 innings. The 28-year-old currently lines up to pitch against Atlanta over the weekend.
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Pitching Stats
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2021
2020
2019
2018
2017
2021 MLB Game Log
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2020 MLB Game Log
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2019 MLB Game Log
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2018 MLB Game Log
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2017 MLB Game Log
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Pitching Appearances Breakdown
Average Pitch Count
90
Last 10 Games
93
Last 5 Games
96
How many pitches does Luis Castillo generally throw?
 
1-10
 
11-20
 
21-30
 
31-40
 
41-50
 
51-60
 
61-70
 
71-80
 
81-90
 
91-100
 
101-110
 
111-120
 
121+
 
1-10
 
11-20
 
21-30
 
31-40
 
41-50
 
51-60
 
61-70
 
71-80
 
81-90
 
91-100
 
101-110
 
111-120
 
121+
 
1-10
 
11-20
 
21-30
 
31-40
 
41-50
 
51-60
 
61-70
 
71-80
 
81-90
 
91-100
 
101-110
 
111-120
 
121+
What part of the game does Luis Castillo generally pitch?
 
 
 
1st
 
 
 
2nd
 
 
 
3rd
 
 
 
4th
 
 
 
5th
 
 
 
6th
 
 
 
7th
 
 
 
8th
 
 
 
9th
 
Extra
 
 
 
1st
 
 
 
2nd
 
 
 
3rd
 
 
 
4th
 
 
 
5th
 
 
 
6th
 
 
 
7th
 
 
 
8th
 
 
 
9th
 
Extra
 
 
 
1st
 
 
 
2nd
 
 
 
3rd
 
 
 
4th
 
 
 
5th
 
 
 
6th
 
 
 
7th
 
 
 
8th
 
 
 
9th
 
Extra
% Games Reaching Innings Threshold
% Games By Number of Innings Pitched
Left/Right Pitching Splits
Since 2019
 
 
-6%
BAA vs RHP
2021
 
 
-4%
BAA vs RHP
2020
 
 
-4%
BAA vs RHP
2019
 
 
-7%
BAA vs RHP
BAA Batters K BB H 2B 3B HR
Since 2019vs Left .231 739 204 85 148 32 3 21
Since 2019vs Right .218 666 181 51 131 24 1 15
2021vs Left .280 188 44 23 45 8 1 4
2021vs Right .270 158 30 10 38 6 1 5
2020vs Left .231 139 37 17 28 7 1 4
2020vs Right .221 139 48 7 29 6 0 1
2019vs Left .209 412 123 45 75 17 1 13
2019vs Right .194 369 103 34 64 12 0 9
More Splits View More Split Stats
Home/Away Pitching Splits
Since 2019
 
 
-21%
ERA at Home
2021
 
 
-8%
ERA on Road
2020
 
 
-50%
ERA at Home
2019
 
 
-19%
ERA at Home
ERA WHIP IP W L SV K/9 BB/9 HR/9
Since 2019Home 3.47 1.12 191.2 11 13 0 10.2 3.1 0.9
Since 2019Away 4.38 1.41 146.0 10 11 0 10.6 4.4 1.0
2021Home 5.86 1.58 35.1 1 5 0 9.4 4.3 0.8
2021Away 5.40 1.44 41.2 1 5 0 8.0 3.5 1.3
2020Home 2.05 1.08 30.2 2 1 0 12.3 2.3 1.2
2020Away 4.12 1.35 39.1 2 5 0 10.8 3.7 0.2
2019Home 3.15 0.99 125.2 8 7 0 9.9 2.9 0.9
2019Away 3.88 1.43 65.0 7 1 0 12.2 5.4 1.4
More Splits View More Split Stats
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 2019 data (min 120 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.
  • BABIP
    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.
K/BB
2.24
 
K/9
8.6
 
BB/9
3.9
 
HR/9
1.1
 
Fastball
96.9 mph
 
ERA
5.61
 
WHIP
1.51
 
BABIP
.341
 
GB/FB
2.21
 
Left On Base
57.1%
 
Exit Velocity
80.0 mph
 
Barrels/BBE
2.6%
 
Spin Rate
2181 rpm
 
Balls Hit 95+ MPH
22.8%
 
Swinging Strike
12.1%
 
Advanced Pitching Stats
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Defensive Stats
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Stats Vs Today's Lineup
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Recent RotoWire Articles Featuring Luis Castillo
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17 days ago
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18 days ago
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Past Fantasy Outlooks
2020
2019
2018
2017
Spring training can be helpful in evaluating a pitcher, but it does come with some risks. Castillo sported a 12.46 ERA over four Cactus League appearances amid reports that his velocity was down. It turned out that Castillo was working on improving his slider, rather than relying more on his two best pitches, his changeup and four-seamer. Given the disparity between Castllo's first half of 2018 when his velocity was down to his second-half when the velocity was up, it was natural to be concerned. That concern cost you a breakout if you downgraded him accordingly. Castillo's fastball velocity (96.5 mph) actually improved, allowing him to post video-game quality results with his changeup (48% whiff rate, .193 WOBA against). If you want to look for a concern, Castillo's August and September were shaky, and he was limited to five starts in September.
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.
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
Shuts down Brewers in no-decision
PCincinnati Reds
June 16, 2021
Castillo didn't factor into the decision in Tuesday's 2-1 extra-inning win over the Brewers, allowing three hits and three walks over seven scoreless innings. He struck out seven.
ANALYSIS
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Strapped with tough loss
PCincinnati Reds
June 10, 2021
Castillo (2-9) was charged with the loss against the Brewers on Thursday after allowing three runs on one hit and three walks while striking out seven over 5.2 innings.
ANALYSIS
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Snaps losing streak
PCincinnati Reds
June 4, 2021
Castillo (2-8) allowed one run on three hits and a walk over six innings Friday, striking out five and earning a win over St. Louis.
ANALYSIS
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Losing streak reaches seven games
PCincinnati Reds
May 29, 2021
Castillo (1-8) was tagged with the loss Saturday against the Cubs after giving up four runs (two earned) on four hits and four walks while fanning three across five innings.
ANALYSIS
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Backward steps
PCincinnati Reds
May 23, 2021
Castillo (1-7) got the loss Sunday against the Brewers, allowing five runs on five hits and four walks over five innings, striking out five.
ANALYSIS
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