DJ Herz

DJ Herz

23-Year-Old PitcherSP
Washington Nationals
2025 Fantasy Outlook
Herz burst onto the scene for the Nationals in his third career start in June when he fanned 13 batters while yielding just one hit over six shutout innings against the Marlins. The left-hander added another double-digit strikeout game in July and finished his rookie season with an impressive 27.8 percent strikeout rate. The biggest knock on Herz as a prospect was his lack of control, as he's handed out free passes at an ugly 15.4 percent clip in the minors. He got that rate down to 9.4 percent in 19 starts with the Nats, which is still high but acceptable when paired with the swing-and-miss. Herz's four-seamer, changeup and slider made up 97 percent of his pitches in 2024 and all three offerings produced the exact same .283 xwOBA, which is excellent. There's blowup risk with the 24-year-old, but he has real upside if he can keep the walks to a dull roar. Read Past Outlooks
RANKS
From Preseason
$Signed a one-year contract with the Nationals in March of 2024.
Optioned by Nationals
PWashington Nationals
September 27, 2024
Washington optioned Herz to the Florida Complex League Nationals on Friday, Bobby Blanco of MASNSports.com reports.
ANALYSIS
With Herz not scheduled to start during the weekend series against the Phillies, the Nationals will switch out the 23-year-old southpaw for long reliever Jackson Rutledge. Herz started 19 games for the Nationals this season, posting a 4-9 record with a 4.16 ERA, 1.26 WHIP and 106:36 K:BB across 88.2 innings. He was briefly sent down to Triple-A Rochester in early July, but he returned to the big club after the All-Star break. Since his recall, his numbers slightly improved to a 3.61 ERA and 1.19 WHIP over 57.1 frames.
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Pitching Stats
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2024
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Pitching Appearances Breakdown
Average Pitch Count
83
Last 10 Games
85
Last 5 Games
83
How many pitches does DJ Herz 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 DJ Herz 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 2022
 
 
-8%
BAA vs RHP
2024
 
 
-8%
BAA vs RHP
2023
No Stats
2022
No Stats
BAA Batters K BB H 2B 3B HR
Since 2022vs Left .238 92 23 8 19 2 0 3
Since 2022vs Right .219 290 83 28 57 9 1 8
2024vs Left .238 92 23 8 19 2 0 3
2024vs Right .219 290 83 28 57 9 1 8
2023vs Left 0 0 0 0 0 0 0 0
2023vs Right 0 0 0 0 0 0 0 0
2022vs Left 0 0 0 0 0 0 0 0
2022vs Right 0 0 0 0 0 0 0 0
More Splits View More Split Stats
Home/Away Pitching Splits
Since 2022
 
 
-30%
ERA at Home
2024
 
 
-30%
ERA at Home
2023
No Stats
2022
No Stats
ERA WHIP IP W L SV K/9 BB/9 HR/9
Since 2022Home 3.61 1.24 57.1 3 6 0 10.8 3.5 0.8
Since 2022Away 5.17 1.31 31.1 1 3 0 10.6 4.0 1.7
2024Home 3.61 1.24 57.1 3 6 0 10.8 3.5 0.8
2024Away 5.17 1.31 31.1 1 3 0 10.6 4.0 1.7
2023Home 0 0 0 0 0 0 0 0 0
2023Away 0 0 0 0 0 0 0 0 0
2022Home 0 0 0 0 0 0 0 0 0
2022Away 0 0 0 0 0 0 0 0 0
More Splits View More Split Stats
Stat Review
How does DJ Herz 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
2.94
 
K/9
10.8
 
BB/9
3.7
 
HR/9
1.1
 
Fastball
93.6 mph
 
ERA
4.16
 
WHIP
1.26
 
BABIP
.311
 
GB/FB
0.93
 
Left On Base
69.4%
 
Exit Velocity
81.1 mph
 
Barrels/BBE
4.5%
 
Spin Rate
2283 rpm
 
Balls Hit 95+ MPH
20.0%
 
Swinging Strike
13.5%
 
Prospect Rankings History
Advanced Pitching Stats
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Defensive Stats
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Stats Vs Today's Lineup
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More Fantasy News
Allows one run in loss
PWashington Nationals
September 25, 2024
Herz (4-9) took the loss against the Royals on Wednesday, allowing one run on three hits and three walks with three strikeouts over five innings.
ANALYSIS
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Crumbles in fourth inning
PWashington Nationals
September 18, 2024
Herz (4-8) took the loss Wednesday versus the Mets, allowing seven runs on six hits and three walks while striking out five over 3.1 innings.
ANALYSIS
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Earns fourth win
PWashington Nationals
September 13, 2024
Herz (4-7) yielded a run on four hits and a walk over five innings Friday, striking out five and earning a win over the Marlins.
ANALYSIS
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Fires five hitless frames
PWashington Nationals
September 7, 2024
Herz (3-7) earned the win over Pittsburgh in the first game of Saturday's doubleheader, issuing three walks and striking out five batters over five hitless and scoreless innings.
ANALYSIS
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Start pushed to Saturday
PWashington Nationals
September 6, 2024
Herz will not start Friday against the Pirates as the game has been postponed due to inclement weather.
ANALYSIS
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