Justin Dunn
25-Year-Old PitcherSP
2020 Fantasy Outlook
Dunn spent the majority of the season with Double-A Arkansas in his first year in the Mariners organization, posting a 3.55 ERA over 25 starts. His underlying numbers were strong as well, as he struck out 28.6% of opposing batters while walking just 7.1%. Dunn was given his first big-league callup in September, allowing just two runs in 6.2 innings but also walking nine batters. He hasn't had significant walk issues in the minors, but his command was never expected to be better than average. Dunn projects as a fourth or fifth starter, as his low-90s fastball and upper-80s changeup are average pitches at best, while his low-80s slider could be above-average. He has not pitched at all at Triple-A, but given the Mariners' youth movement and lack of rotation depth, he will probably enter spring training as a favorite to break camp in the big-league rotation. Read Past Outlooks
RANKSFrom Preseason
#578
ADP
Add To Watchlist
$Signed a one-year contract with the Mariners in September of 2019.
Decent in no-decision
PSeattle Mariners
September 20, 2020
Dunn allowed three runs on two hits and four walks with six strikeouts in 5.2 innings in a no-decision versus the Padres on Sunday.
ANALYSIS
Dunn was effective Sunday, but manager Scott Servais may have left him in the game too long. Dunn walked Eric Hosmer and gave up a ground rule double to Mitch Moreland before Wil Myers lifted a three-run homer to end the right-hander's outing. The 24-year-old Dunn has a 4.20 ERA, 1.33 WHIP and 36 strikeouts across 40.2 innings this season. He will likely get one more start in 2020, which lines up with Saturday's doubleheader versus the Athletics.
Read More News
Pitching Stats
Loading Pitching Stats...
2020
2019
2020 MLB Game Log
Calculate Stats Over Time
Just click on any two dates.
Scoring
FanDuel
DraftKings
Yahoo DFS
FantasyDraft
Head2Head
Loading Pitching Game Log...
2019 MLB Game Log
Calculate Stats Over Time
Just click on any two dates.
Scoring
FanDuel
DraftKings
Yahoo DFS
FantasyDraft
Head2Head
Loading Pitching Game Log...
Minor League Game Log
Calculate Stats Over Time
Just click on any two dates.
Loading Minor League Pitching Game Log...
Pitching Appearances Breakdown
Average Pitch Count
79
Last 10 Games
79
Last 5 Games
88
How many pitches does Justin Dunn 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 Justin Dunn 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
 
 
-15%
BAA vs LHP
2020
 
 
-15%
BAA vs LHP
2019
 
 
-100%
BAA vs LHP
2018
No Stats
BAA Batters K BB H 2B 3B HR
Since 2018vs Left .151 103 23 27 11 2 1 4
Since 2018vs Right .178 103 18 11 16 1 0 4
2020vs Left .159 91 22 19 11 2 1 4
2020vs Right .187 85 14 10 14 1 0 4
2019vs Left .000 12 1 8 0 0 0 0
2019vs Right .133 18 4 1 2 0 0 0
2018vs Left 0 0 0 0 0 0 0 0
2018vs Right 0 0 0 0 0 0 0 0
More Splits View More Split Stats
Home/Away Pitching Splits
Since 2018
 
 
-36%
ERA at Home
2020
 
 
-45%
ERA at Home
2019
 
 
-100%
ERA on Road
2018
No Stats
ERA WHIP IP W L SV K/9 BB/9 HR/9
Since 2018Home 3.05 1.16 20.2 2 1 0 7.8 6.5 1.7
Since 2018Away 4.73 1.54 26.2 1 0 0 7.8 7.8 1.4
2020Home 2.81 1.06 16.0 2 1 0 7.9 5.1 2.3
2020Away 5.11 1.50 24.2 1 0 0 8.0 7.3 1.5
2019Home 3.86 1.50 4.2 0 0 0 7.7 11.6 0.0
2019Away 0.00 2.00 2.0 0 0 0 4.5 13.5 0.0
2018Home 0 0 0 0 0 0 0 0 0
2018Away 0 0 0 0 0 0 0 0 0
More Splits View More Split Stats
Stat Review
How does Justin Dunn 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
1.24
 
K/9
8.0
 
BB/9
6.4
 
HR/9
1.8
 
Fastball
91.2 mph
 
ERA
4.20
 
WHIP
1.33
 
BABIP
.178
 
GB/FB
0.66
 
Left On Base
79.4%
 
Exit Velocity
83.8 mph
 
Barrels/BBE
6.7%
 
Spin Rate
2213 rpm
 
Balls Hit 95+ MPH
29.2%
 
Swinging Strike
8.9%
 
Advanced Pitching Stats
Loading Advanced Pitching Stats...
Defensive Stats
Loading MLB Defensive Stats...
Stats Vs Today's Lineup
Want more matchup stats?
Loading Matchup Stats...
Our full team depth charts are reserved for RotoWire subscribers.
Subscribe Now
Recent RotoWire Articles Featuring Justin Dunn
Yahoo DFS Baseball: Sunday Picks
2 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
3 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?
Weekly Pitcher Rankings: Last Call
10 days ago
Todd Zola ranks the week's staring pitching as the regular season comes down the stretch. This the last week to be relatively confident in two-start opportunities.
Weekly Pitcher Rankings: Flourishing Freshmen
17 days ago
Todd Zola ranks the week's starting pitching, as Cristian Javier is one of a handful of young hurlers with two starts.
Yahoo DFS Baseball: Sunday Picks
23 days ago
If you want to save some salary at second base, Chris Morgan recommends the decent-hitting David Fletcher.
Past Fantasy Outlooks
2019
2017
The 19th overall pick in the 2016 draft rehabbed his stock in a return trip to High-A. After logging a 4.15 FIP, 1.56 WHIP and 6.2 K-BB% in 95.1 innings there in 2017, he notched a 3.00 FIP, 1.27 WHIP and 18.3 K-BB% in nine starts before a promotion to Double-A. His strikeout rate climbed to an elite 27.7% in the Eastern League, but his walk rate also spiked from 7.6% to 9.8%. Dunn was the secondary piece (after Jarred Kelenic) the Mariners received from the Mets in the Robinson Cano/Edwin Diaz trade. If he had even average command of his mid-90s fastball, the 23-year-old righty would be a high-probability mid-rotation starter, as he also features three quality offspeed pitches that can flash plus. His inability to consistently locate his heater may eventually push him to the bullpen. The Mariners will obviously give him every opportunity to start. He may debut in 2019, but seems unlikely to be a consistent, quality fantasy option until at least 2020.
Dunn split time between the bullpen and rotation at Boston College, but he appears to have the stuff to cut it as a starter. Though not the most imposing figure, Dunn possesses a blazing fastball, above-average slider, serviceable curveball and emerging changeup. The development of that last pitch may go a long ways towards determining whether he stays in the starting rotation. While command was thought to be a chief concern, Dunn impressed during his brief time in the minors after being drafted in the first round in 2016. Dunn notched a 35:10 K:BB in 30 innings for the Brooklyn Cyclones in the short-season New York-Penn League. Dunn had a minuscule 1.50 ERA during that span. Opposing batters hit just .227 against the athletic righty. He started eight of his 11 appearances for the Cyclones. Dunn could see Low-A to begin the 2017 campaign as he builds up arm strength and the Mets manage his innings.
More Fantasy News
Wild in short outing
PSeattle Mariners
September 13, 2020
Dunn allowed one run on one hit and five walks across two innings in Sunday's 7-3 win over the Diamondbacks. He fanned five and did not factor in the decision.
ANALYSIS
Subscribe now to instantly reveal our take on this news.
Fans four in win
PSeattle Mariners
September 6, 2020
Dunn (3-1) allowed two runs on four hits and four walks over six innings Sunday, striking out four and earning the win over the Rangers.
ANALYSIS
Subscribe now to instantly reveal our take on this news.
Spins six scoreless innings
PSeattle Mariners
August 30, 2020
Dunn tossed six scoreless innings, allowing a hit and four walks while striking out six in a no-decision versus the Angels on Sunday.
ANALYSIS
Subscribe now to instantly reveal our take on this news.
Shines in win
PSeattle Mariners
August 23, 2020
Dunn (2-1) pitched six scoreless innings in a win over the Rangers on Sunday. He allowed one hit and one walk and struck out six.
ANALYSIS
Subscribe now to instantly reveal our take on this news.
Cleared to start Sunday
PSeattle Mariners
August 21, 2020
Mariners manager Scott Servais said Dunn (ribs) has been cleared to make his next scheduled start Sunday against the Rangers, Greg Johns of MLB.com reports.
ANALYSIS
Subscribe now to instantly reveal our take on this news.