Jack Flaherty
Jack Flaherty
24-Year-Old PitcherSP
St. Louis Cardinals
2020 Fantasy Outlook
While 2018 was the breakout for Flaherty's delicious slider, 2019 was the breakout season for Flaherty as a pitcher. That seems silly to say when we look back at the midpoint of the season and find Flaherty 4-5 with a 4.90 ERA in his first 17 starts, but it was. At that time, Flaherty was getting the strikeouts, but 1.9 homers per nine innings limited his success. Flaherty changed his tune over his final 16 starts, going 7-3 with a 0.93 ERA and allowing six homers over his final 106.1 innings of work. He was simply masterful down the stretch for the Cardinals, holding opponents to a .139 batting average over those 16 starts. The real Flaherty lies somewhere in between those two groupings of stats. It is worth noting he has thrown over 400 innings the past two seasons, including 213.1 IP in 2019 when you include postseason work. That, plus the slider usage, is something to consider before going all-in. Read Past Outlooks
RANKSFrom Preseason
#23
ADP
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$Signed a one-year, $604,500 contract with the Cardinals in March of 2020.
Gets no support in loss
PSt. Louis Cardinals
September 26, 2020
Flaherty (4-3) took the loss during the first game of Friday's doubleheader against the Brewers, allowing three runs on four hits and four walks over five innings as the Cardinals fell 3-0. He struck out five.
ANALYSIS
The right-hander wasn't at his sharpest, throwing 57 of 95 pitches for strikes, but without any run support he had no margin for error. Flaherty likely won't pitch again in the regular season -- although the Cards might still need to play a makeup doubleheader Monday against the Tigers if those games matter for the playoff race -- leaving him with a disappointing 4.91 ERA, 1.21 WHIP and 49:16 K:BB over 40.1 innings.
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Pitching Stats
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2020
2019
2018
2017
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
80
Last 10 Games
80
Last 5 Games
88
How many pitches does Jack Flaherty 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 Jack Flaherty 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 2018
 
 
-3%
BAA vs RHP
2020
 
 
-8%
BAA vs LHP
2019
 
 
-10%
BAA vs RHP
2018
 
 
-5%
BAA vs LHP
BAA Batters K BB H 2B 3B HR
Since 2018vs Left .200 782 204 74 140 23 1 25
Since 2018vs Right .195 753 253 52 132 22 1 25
2020vs Left .213 84 24 5 16 3 0 4
2020vs Right .232 64 20 7 13 1 0 1
2019vs Left .202 388 97 30 72 12 0 14
2019vs Right .182 384 134 25 63 12 1 11
2018vs Left .194 310 83 39 52 8 1 7
2018vs Right .204 305 99 20 56 9 0 13
More Splits View More Split Stats
Home/Away Pitching Splits
Since 2018
 
 
-33%
ERA at Home
2020
 
 
-78%
ERA at Home
2019
 
 
-24%
ERA at Home
2018
 
 
-20%
ERA at Home
ERA WHIP IP W L SV K/9 BB/9 HR/9
Since 2018Home 2.53 0.88 188.1 14 8 0 10.3 2.1 1.1
Since 2018Away 3.80 1.19 194.1 9 11 0 11.2 3.8 1.2
2020Home 2.05 0.82 22.0 3 0 0 8.2 1.6 0.8
2020Away 9.45 1.73 13.1 1 2 0 16.2 5.4 2.0
2019Home 2.37 0.79 98.2 7 4 0 10.7 1.8 1.2
2019Away 3.13 1.15 97.2 4 4 0 10.5 3.2 1.1
2018Home 2.93 1.03 67.2 4 4 0 10.5 2.7 1.2
2018Away 3.67 1.16 83.1 4 5 0 11.1 4.2 1.2
More Splits View More Split Stats
Stat Review
How does Jack Flaherty 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
3.06
 
K/9
10.9
 
BB/9
3.6
 
HR/9
1.3
 
Fastball
93.6 mph
 
ERA
4.91
 
WHIP
1.21
 
BABIP
.294
 
GB/FB
2.14
 
Left On Base
66.5%
 
Exit Velocity
80.1 mph
 
Barrels/BBE
3.6%
 
Spin Rate
2247 rpm
 
Balls Hit 95+ MPH
18.7%
 
Swinging Strike
14.7%
 
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 Jack Flaherty
Bernie on the Scene: Do I Want these Pitchers Next Season?
6 days ago
Bernie Pleskoff analyzes pitchers who failed him this season and whether he expects them to bounce back next season.
Yahoo DFS Baseball: Sunday Picks
7 days ago
Even though Antonio Senzatela will be taking the mound for the Rockies, Chris Morgan likes Corey Seager as a solid option at Coors Field.
Weekly Pitcher Rankings: Down the Stretch They Come
8 days ago
Todd Zola ranks the week's pitching as the season comes into the final stretch. What's that mean for aces like Gerrit Cole with the playoffs on tap?
FanDuel MLB: Tuesday Targets
12 days ago
Chris Bennett looks over Tuesday's slate and expects Jose Urquidy to be a very chalky play against a vulnerable Rangers lineup.
DraftKings MLB: Tuesday Breakdown
12 days ago
Sasha Yodashkin dives into Tuesday’s DraftKings offering, recommending Mike Trout against Madison Bumgarner and the Diamondbacks.
Past Fantasy Outlooks
2019
2018
2017
2016
2015
The year didn't end on a positive note, with Flaherty posting a 5.34 ERA in September, but the overall body of work was stellar, especially for a 22-year-old taking his first real spin through the major leagues. Flaherty's fastball/slider combo is already one of the best in the game, and he can also change speeds although the changeup was a clear fourth offering behind the heater, slider and curve. He used that arsenal to strike batters out at a 29.6% clip, which was a top-10 mark among all pitchers with at least 150 innings. He shot himself in the foot occasionally with walks (3.5 BB/9) and homers (1.19 HR/9), but even marginal improvement to his 57.2% first-pitch strike rate should help on both fronts, and he's proven durable so far in his young professional career. With a rotation spot secured on what looks like a contending club, Flaherty should be viewed as a solid SP2 in mixed leagues.
Once seen as a likely No. 4 or No. 5 starter, the projectable 6-foot-4 righty finally delivered on the promise evaluators had long envisioned, with his fastball velocity jumping from the low-90s to the mid-90s in 2017. Exceptional command allowed him to profile as a back-end starter when he had middling stuff, and now that command allows him to project as a No. 3 starter. In addition to an improved fastball, Flaherty's slider also took a step forward, now profiling as his second-best offering. His curveball is more of a show-me pitch and his changeup is still developing, but has a chance to be a quality third pitch. Flaherty will not strike out a batter per inning, but should eventually be an asset in ERA and WHIP, and is ready to approach 200 innings. He got a brief taste of the majors last season, and will compete for a rotation spot this spring. One way or another, he figures to spend the bulk of 2018 in the big-league rotation, and makes for a decent flier at the end of deep-league drafts.
The 21-year-old Flaherty may not have the upside of some of the other pitchers in the St. Louis organization, but he achieved a good deal of success at High-A in 2016. The former first-round pick posted a 126:45 K:BB in 134 innings at that level. His fastball sits in the low-90s and is certainly not overpowering, but it does have a lot of movement. His changeup is above average, and Flaherty also features an emerging curveball and slider. In addition, Flaherty possesses an ideal frame at 6-foot-4, 205 pounds that should hold up to the rigors of being a rotation workhorse. Flaherty has the upside of a No. 2 starter and will begin the 2017 campaign at Double-A working to improve his secondary offerings.
Despite missing almost two months with a back injury at the start of the season, Flaherty managed to pass his first test pitching in a full-season league with flying colors. The 6-foot-4 righty posted a 2.84 ERA (2.83 FIP) with a 1.29 WHIP and 97 strikeouts in 95 innings with Low-A Peoria. He probably should have been challenged with a late-season promotion to the Florida State League, as his four-pitch mix was more than enough to dominate Low-A hitters. Flaherty will get his chance with High-A Palm Beach to start his age-20 season, but this may not be a one level per year arm, as the Cardinals might want to see how he fares in the upper levels at some point in 2016. A first-round pick in 2014, Flaherty has three pitches that could reach plus status, giving him a No. 2 ceiling, with the realistic floor of a No. 4 starter.
The Cardinals took Flaherty in the first round of the 2014 draft, inking the 6-foot-4 righty with a bonus well over the slot value for the No. 34 pick. He's several years away from contributing at the big league level but the Cardinals spent a lot to keep him from going to North Carolina for college. He was able to get in six starts in the Gulf Coast League for the Cardinals, posting an impressive 1.59 ERA and 28 strikeouts in just 22.2 innings as an 18-year-old. He could take some big steps forward in 2015, his first full year where his focus will be entirely on pitching, and if he can finish the season in High-A for the Cardinals it will be a great sign of things to come.
More Fantasy News
Fans 11 in win
PSt. Louis Cardinals
September 20, 2020
Flaherty picked up the win Sunday against the Pirates, allowing one run on two hits and two walks across six innings. He struck out 11.
ANALYSIS
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Rocked in loss
PSt. Louis Cardinals
September 16, 2020
Flaherty (3-2) gave up nine runs on eight hits and two walks during the Cardinals' 18-3 loss on Tuesday. He struck out six.
ANALYSIS
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Fans six in third win
PSt. Louis Cardinals
September 10, 2020
Flaherty (3-1) picked up the win in the first game of Thursday's doubleheader against the Tigers, giving up two runs on four hits and two walks over five innings. He struck out six.
ANALYSIS
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Can't escape third inning
PSt. Louis Cardinals
September 4, 2020
Flaherty (2-1) allowed three runs on four hits and two walks with four strikeouts over 2.2 innings in a loss to the Cubs on Friday.
ANALYSIS
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Set to open series vs. Cubs
PSt. Louis Cardinals
September 3, 2020
Flaherty will start Friday's game against the Cubs, Jeff Jones of the Belleville News-Democrats reports.
ANALYSIS
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