Junior Guerra
Junior Guerra
35-Year-Old PitcherRP
Arizona Diamondbacks
2020 Fantasy Outlook
Guerra worked mainly as a starter over his first three seasons with the Brewers, but he pitched exclusively in relief in 2019. He more than got the job done out of the bullpen, slotting into a late-inning role and leading NL relievers in IP while tying his career high with nine wins. Despite all that the Brewers chose not to tender the 35-year-old Guerra a contract during the offseason, making him a free agent. Guerra's age and usage -- plus a 2019 FIP nearly a run higher than his ERA -- are causes for concern, but his fastball velocity ticked up as a reliever, he kept runners off the bases and he was more effective after the All-Star break (2.72 ERA) than before (4.18 ERA). It seems likely he will be viewed solely as a reliever on the market, so he could have trouble landing a role that gives him much fantasy value. However, he could still provide quality innings out of the bullpen wherever he ends up. Read Past Outlooks
RANKSFrom Preseason
#601
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$Signed a one-year, $2.55 million contract with the Diamondbacks in December of 2019. Contract includes team option ($100,000 buyout) for 2021.
Blows save in 10th inning
PArizona Diamondbacks
September 3, 2020
Guerra (1-1) blew a save chance and picked up the loss against the Dodgers on Wednesday, He allowed two unearned runs on one hit in a third of an inning in a 3-2 extra-inning loss.
ANALYSIS
Guerra was victimized by himself as he slipped while fielding a bunt and made a wild throw from his knees, allowing the tying run to score. Two batters later, the game was over and two members of Arizona's closer by committee -- Guerra and Kevin Ginkel an inning earlier -- were tagged with blown saves. It was Guerra's second blown save.
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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
16
Last 10 Games
16
Last 5 Games
17
How many pitches does Junior Guerra 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 Junior Guerra 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
Even Split
2020
 
 
-6%
BAA vs RHP
2019
 
 
-14%
BAA vs LHP
2018
 
 
-3%
BAA vs RHP
BAA Batters K BB H 2B 3B HR
Since 2018vs Left .238 515 107 70 104 23 1 16
Since 2018vs Right .237 534 126 34 114 27 1 15
2020vs Left .226 42 8 10 7 2 0 1
2020vs Right .213 52 12 3 10 3 0 0
2019vs Left .178 160 32 27 23 5 1 3
2019vs Right .206 184 45 9 35 7 0 8
2018vs Left .267 313 67 33 74 16 0 12
2018vs Right .260 298 69 22 69 17 1 7
More Splits View More Split Stats
Home/Away Pitching Splits
Since 2018
 
 
-45%
ERA at Home
2020
 
 
-1%
ERA on Road
2019
 
 
-4%
ERA on Road
2018
 
 
-64%
ERA at Home
ERA WHIP IP W L SV K/9 BB/9 HR/9
Since 2018Home 2.84 1.16 142.2 7 4 1 9.1 3.3 1.0
Since 2018Away 5.12 1.51 103.2 9 11 2 7.7 4.4 1.3
2020Home 2.92 1.05 12.1 1 0 0 10.2 2.9 0.7
2020Away 2.89 1.82 9.1 0 1 0 5.8 8.7 0.0
2019Home 3.63 1.03 39.2 3 1 1 9.1 3.6 0.9
2019Away 3.48 1.20 44.0 6 4 2 7.6 4.1 1.4
2018Home 2.48 1.22 90.2 3 3 0 8.9 3.3 1.1
2018Away 6.97 1.73 50.1 3 6 0 8.2 3.9 1.4
More Splits View More Split Stats
Stat Review
How does Junior Guerra 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
1.54
 
K/9
8.3
 
BB/9
5.4
 
HR/9
0.4
 
Fastball
94.1 mph
 
ERA
2.91
 
WHIP
1.38
 
BABIP
.280
 
GB/FB
2.08
 
Left On Base
73.4%
 
Exit Velocity
79.9 mph
 
Barrels/BBE
2.9%
 
Spin Rate
2304 rpm
 
Balls Hit 95+ MPH
17.1%
 
Swinging Strike
12.8%
 
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 Junior Guerra
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5 days ago
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12 days ago
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14 days ago
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Mound Musings: Trading Places at the Deadline
15 days ago
Brad Johnson analyses the aftermath of the trade deadline to see how the changes in latitudes might affect pitchers like Robbie Ray who’s moving to Toronto.
Regan's Rumblings: Post Trade Deadline Winners
17 days ago
In this week's article, David Regan looks at 10 players positively impacted by the trade deadline, including in L.A. where a rotation spot could open for Tony Gonsolin.
Past Fantasy Outlooks
2019
2018
2017
2016
In 2018, Guerra set personal bests with 31 appearances, 26 starts and 141 innings. His 2019 role is still unclear, though he's likely to fill a similar swingman role with the lean to more work from the bullpen than last season. The totals would have been higher if not for a 10-day DL stint in July. The 34-year-old righty also set a career high with a 22.3 K%, fueled by adding a couple ticks of velocity across his fastball/splitter/sinker/slider mix. The past two seasons, Guerra has allowed an excess of baserunners, but for different reasons. In 2017, his .236 BABIP was mitigated by a 13.6 BB%, but last season, an unlucky .312 BABIP spoiled an improved 9.0 BB%. If Guerra can maintain the control gains while enjoying a hit rate correction, he could improve on last season's 4.90 ERA. It's not a chance to chase, but it does put Guerra on the radar in deeper formats, especially for the stretches he's in the Brewers' rotation.
Following a breakout rookie season as a 31-year-old in 2016, Guerra was tabbed as the Brewers' Opening Day starter to kick off the 2017 campaign. Things quickly went south from there, as he was injured while hitting and missed nearly two months of action. He held his own for a few starts after returning from the disabled list, but he had trouble finding the strike zone, was dropped from the rotation by the end of July and started just one more game for the Brewers very late in the year. Guerra's control and fastball velocity fell off significantly last season, but his success the year before will earn him a chance to secure a spot at the back end of the rotation during spring training. At age 32 without much of a track record, though, he is seemingly a long shot to come away with one of the five openings.
As a 31-year-old rookie, Guerra came out of nowhere to become Milwaukee's ace in 2016. Behind a fastball-slider-splitfinger combination, Guerra recorded a 2.81 ERA with exactly 100 strikeouts over 121.2 innings -- an innings limit imposed by the Brewers considering Guerra had spent most of his previous minor league campaigns in the bullpen. The big ticket for Guerra is the splitfinger, which drew whiffs nearly one in every five times he threw it and held opponents to just a .115 batting average against. Such success always feels precarious for a pitcher like Guerra, who was virtually unknown until his big 2016 season. But that splitter is for real, and while he may not be able to maintain a sub-3.00 ERA, Guerra's arsenal is good enough for him to remain a solid mid-rotation pitcher in 2017 and beyond.
After spending six seasons in independent leagues, Guerra got to pitch last year as a member of the White Sox organization. He moved through Double-A and Triple-A as a long reliever, and even got a taste of the major leagues in June. He got shelled in the majors, but his numbers in the minors were somewhat decent. His Triple-A ERA was only 3.39 and he reduced his WHIP to 1.16 while posting an excellent 11.3 K/9. He'll have to show that he can be effective against major league hitters, but he could see a shot in the big leagues with the Brewers bullpen being fairly young and fluid.
More Fantasy News
Earns first win
PArizona Diamondbacks
August 7, 2020
Guerra (1-0) struck out one over a scoreless inning to pick up the win in Thursday's walk-off victory over the Astros.
ANALYSIS
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Throwing blanks
PArizona Diamondbacks
August 2, 2020
Guerra struck out one over a scoreless inning in Sunday's 3-0 loss to the Dodgers.
ANALYSIS
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Reports to camp
PArizona Diamondbacks
July 8, 2020
Guerra (illness) joined Arizona's summer camp Wednesday.
ANALYSIS
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Tests positive for coronavirus
PArizona Diamondbacks
Illness
July 5, 2020
Guerra has tested positive for COVID-19, Nick Piecoro of The Arizona Republic reports.
ANALYSIS
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Out of options
PArizona Diamondbacks
April 5, 2020
Guerra is out of minor-league options, Steve Gilbert of MLB.com reports.
ANALYSIS
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