Jon Duplantier
24-Year-Old PitcherRP
10-Day IL
Injury Shoulder
Est. Return 7/2/2019
2019 Fantasy Outlook
Duplantier is among the most skilled pitchers in the minor leagues, but durability is a big question mark. After he managed to throw 136 innings in 2017, that number fell to just 74 this past season as Duplantier dealt with hamstring and, more notably, biceps issues. This came after Duplantier missed the entire 2015 season with a shoulder injury and after he battled elbow soreness during his first year of pro ball in 2016. He made up for some lost time this past year in the Arizona Fall League, throwing 21.2 innings and fanning 32 against some of the most polished hitting prospects in the game, but in the end he was still under the century mark in total. His slider is an impressive swing-and-miss pitch and Duplantier can get both strikeouts and groundballs with the heater. Add in plus command and Duplantier has clear mid-rotation potential, but consider us skeptical that he can hold up to the rigors of a major-league season year-in and year-out. Read Past Outlooks
RANKSFrom Preseason
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$Signed a contract with the Diamondbacks in 2016.
Shut down for six or seven days
PArizona Diamondbacks
Shoulder
June 14, 2019
Duplantier (shoulder) will be shut down for six or seven days, Zach Buchanan of The Athletic reports.
ANALYSIS
Duplantier landed on the 10-day injured list with right shoulder inflammation Wednesday. He underwent an MRI on Thursday which revealed a significant enough injury to shut him down for a brief period, though it's not clear exactly what he was diagnosed with.
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Pitching Stats
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Left/Right Pitching Splits
Since 2017
 
 
-24%
BAA vs LHP
2019
 
 
-24%
BAA vs LHP
2018
No Stats
2017
No Stats
BAA Batters K BB H 2B 3B HR
Since 2017vs Left .220 48 15 6 9 3 0 0
Since 2017vs Right .288 59 9 3 15 2 0 2
2019vs Left .220 48 15 6 9 3 0 0
2019vs Right .288 59 9 3 15 2 0 2
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
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Home/Away Pitching Splits
Since 2017
 
 
-37%
ERA at Home
2019
 
 
-37%
ERA at Home
2018
No Stats
2017
No Stats
ERA WHIP IP W L SV K/9 BB/9 HR/9
Since 2017Home 3.79 1.26 19.0 1 0 0 9.9 3.8 0.5
Since 2017Away 6.00 1.50 6.0 0 1 1 4.5 1.5 1.5
2019Home 3.79 1.26 19.0 1 0 0 9.9 3.8 0.5
2019Away 6.00 1.50 6.0 0 1 1 4.5 1.5 1.5
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
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Stat Review
How does Jon Duplantier 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 this season's data (min 20 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
2.67
 
K/9
8.6
 
BB/9
3.2
 
HR/9
0.7
 
Fastball
92.2 mph
 
ERA
4.32
 
WHIP
1.32
 
BABIP
.321
 
GB/FB
1.36
 
Left On Base
69.5%
 
Exit Velocity
90.6 mph
 
Barrels/BBE
7.2%
 
Spin Rate
2084 rpm
 
Balls Hit 95+ MPH
43.5%
 
Swinging Strike
9.6%
 
Advanced Pitching Stats
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Defensive Stats
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Stats Vs Today's Lineup
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2018 Fantasy Outlook
Most pitchers from Rice are overused to the point that they are shells of themselves once they get into pro ball. This, coupled with the fact that he dealt with a shoulder injury in 2015, is how Duplantier fell to the Diamondbacks in the third round in 2016. So far the 6-foot-4 righty has been better than anyone could have imagined. He led qualified minor-league pitchers with a 1.39 ERA across stops at Low-A and High-A last year -- the second lowest minor-league ERA over the last 25 years, trailing only Justin Verlander's 1.29 mark from 2005. Duplantier commands a plus fastball, two potentially above-average breaking balls in his slider and curveball, and an average changeup. That pitch mix, while deep, doesn't quite match his absurd production. Considering he turns 24 in July and will be making his Double-A debut this year, it's too early to say he has frontline upside. A better bet is that he struggles at times in the upper levels and settles in as a mid-rotation starter.
More Fantasy News
Awaits MRI results
PArizona Diamondbacks
Shoulder
June 14, 2019
Duplantier (shoulder) underwent an MRI on Thursday, Richard Morin of the Arizona Republic reports.
ANALYSIS
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Out with shoulder injury
PArizona Diamondbacks
Shoulder
June 12, 2019
Duplantier landed on the 10-day injured list with right shoulder inflammation Wednesday.
ANALYSIS
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Lasts only three frames
PArizona Diamondbacks
June 11, 2019
Duplantier (1-1) took the loss Tuesday at Philadelphia after surrendering four runs on seven hits over three innings. He struck out one and walked one.
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Settles for second no-decision
PArizona Diamondbacks
June 5, 2019
Duplantier allowed two runs on three hits and a walk while also recording seven strikeouts across five innings during a no-decision against the Dodgers on Wednesday.
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No-decision in first MLB start
PArizona Diamondbacks
June 1, 2019
Duplantier didn't factor into the decision in Friday's 5-4 loss to the Mets, giving up three runs on six hits and two walks over five innings while striking out four.
ANALYSIS
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