Jay Jackson
Jay Jackson
32-Year-Old PitcherRP
 Free Agent  Foreign
Free Agent
2020 Fantasy Outlook
Jackson latched on with the Brewers prior to the 2019 season after spending three campaigns in the Japan Central League with the Hiroshima Carp, posting a 2.10 ERA, 1.13 WHIP and 9.8 K/9 across 175 appearances. After opening the season with Triple-A San Antonio, the right-hander was promoted near the end of April, marking his first time back in the majors since debuting with the Padres in 2015. Jackson struggled in his first stint with the Brewers, allowing five runs in 2.1 innings, but fared much better after returning following the All-Star break, posting a 3.21 ERA, 1.25 WHIP and 44:17 K:BB across his final 28 innings. Jackson proved he has impressive strikeout stuff (13.9 K/9 and 18.1% swinging strike rate), though he'll likely need to cut down on the walks (5.3 BB/9) and home runs (1.8 HR/9) if he wants to work his way into a higher-leverage relief role in 2020. Read Past Outlooks
$Signed a contract with the Chiba Lotte Marines of NPB in December of 2019.
Signs deal overseas
PFree Agent  F
December 2, 2019
Jackson has signed a contract with the Chiba Lotte Marines of the Nippon Professional Baseball Organization, Jon Morosi of MLB Network reports.
ANALYSIS
Jackson appeared in 28 games for the Brewers a season ago, finishing with a 4.45 ERA and 1.32 WHIP with a 47:18 K:BB over 30.1 frames. A return to Major League Baseball can't be ruled out at this point, though he'll likely need to show improvement overseas to earn a big-league contract.
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Pitching Stats
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2019
2019 MLB Game Log
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Scoring
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Minor League Game Log
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Pitching Appearances Breakdown
Average Pitch Count
20
Last 10 Games
18
Last 5 Games
18
How many pitches does Jay Jackson 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 Jay Jackson 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 2017
 
 
-30%
BAA vs RHP
2019
 
 
-30%
BAA vs RHP
2018
No Stats
2017
No Stats
BAA Batters K BB H 2B 3B HR
Since 2017vs Left .250 51 15 8 10 3 0 3
Since 2017vs Right .174 81 32 10 12 1 0 3
2019vs Left .250 51 15 8 10 3 0 3
2019vs Right .174 81 32 10 12 1 0 3
2018vs Left 0 0 0 0 0 0 0 0
2018vs Right 0 0 0 0 0 0 0 0
2017vs Left 0 0 0 0 0 0 0 0
2017vs Right 0 0 0 0 0 0 0 0
More Splits View More Split Stats
Home/Away Pitching Splits
Since 2017
 
 
-2%
ERA at Home
2019
 
 
-2%
ERA at Home
2018
No Stats
2017
No Stats
ERA WHIP IP W L SV K/9 BB/9 HR/9
Since 2017Home 4.42 0.76 18.1 0 0 0 17.7 2.9 1.5
Since 2017Away 4.50 2.17 12.0 1 0 0 8.3 9.0 2.3
2019Home 4.42 0.76 18.1 0 0 0 17.7 2.9 1.5
2019Away 4.50 2.17 12.0 1 0 0 8.3 9.0 2.3
2018Home 0 0 0 0 0 0 0 0 0
2018Away 0 0 0 0 0 0 0 0 0
2017Home 0 0 0 0 0 0 0 0 0
2017Away 0 0 0 0 0 0 0 0 0
More Splits View More Split Stats
Stat Review
How does Jay Jackson compare to other relievers?
This section compares his stats with all relief pitcher seasons from the previous three seasons (minimum 30 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 30 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
2.61
 
K/9
13.9
 
BB/9
5.3
 
HR/9
1.8
 
Fastball
94.4 mph
 
ERA
4.45
 
WHIP
1.32
 
BABIP
.293
 
GB/FB
0.96
 
Left On Base
79.1%
 
Exit Velocity
88.9 mph
 
Barrels/BBE
11.3%
 
Spin Rate
2398 rpm
 
Balls Hit 95+ MPH
35.5%
 
Swinging Strike
18.1%
 
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 Jay Jackson
Tuesday Lineup Card: Come See Seager
September 14, 2015
Weekly Pitcher Rankings: Red Ready
April 30, 2011
Johnny Cueto is nearing a return from the DL, and it could come as early as this week.
MLB Team Previews: 2011 Cubs Preview
February 8, 2011
Despite bad contracts with aging players like Alfonso Soriano, the Cubs traded prospects for Matt Garza in the hopes of making a run in the NL Central
Mound Musings: 30 Rotations Heading into Sept.
August 26, 2010
Past Fantasy Outlooks
2016
2011
2010
2009
While Jackson failed to claim a bullpen spot out of camp, he did earn his first major-league call-up in September on the strength of a combined 2.42 ERA and 1.09 WHIP between Double-A and Triple-A. The right-hander was virtually untouchable early on with San Antonio, earning a promotion to El Paso less than a month into the campaign. The results with El Paso weren't quite as eye-popping, but the numbers were strong nonetheless, with the 28-year-old saving 14 games and finishing 25 games in total for the Chihuahuas, with more than four strikeouts for every walk. His first exposure to major-league hitting was rocky, and Jackson opted to leave North America for an opportunity to pitch in Japan in 2016.
As a 22-year-old at Triple-A, Jackson held his own, but not much more. On the positive side, his command improved significantly (just 2.75 BB/9IP), but he was inconsistent from start to start, and his strikeout rate dropped to 6.82 K/9IP from 8.16 at Double-A the year before. Jackson also moved into the bullpen for seven effective appearances before returning to the rotation in late May. Jackson throws a low-90s fastball, with a changeup, slider and curve, and should get a chance to compete for one of the last rotation spots this spring.
With a low-90s fastball, and a promising curve, slider and changeup, Jackson climbed through three levels last year, missing bats and keeping the ball in the park along the way. His command is still an issue as he walked 39 in 82.2 Double-A innings, but Jackson is not far away from a major league debut. Expect him to compete for the No. 5 starter job in camp, but unless he blows the Cubs away, he'll begin the year at Triple-A.
Jackson has pitched extremely well as a pro so far, dominating High-A ball in his first look at professional hitters. He could be a big bargain in the ninth round, thanks to a 90+ fastball and better-than-expected breaking stuff.
More Fantasy News
Heads to free agency
PFree Agent  F
November 1, 2019
Jackson elected free agency Friday.
ANALYSIS
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Effective of late
PMilwaukee Brewers  F
September 10, 2019
Jackson tossed a scoreless inning of relief in Monday's victory over the Marlins.
ANALYSIS
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Recalled from Triple-A
PMilwaukee Brewers  F
August 18, 2019
Jackson was recalled from Triple-A San Antonio prior to Sunday's game against the Nationals.
ANALYSIS
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Optioned to Triple-A
PMilwaukee Brewers  F
August 3, 2019
ANALYSIS
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Contract selected by Brewers
PMilwaukee Brewers  F
July 13, 2019
Jackson's contract was selected by the Brewers on Saturday.
ANALYSIS
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