Justin Sterner

Justin Sterner

29-Year-Old PitcherRP
Sacramento Athletics
2025 Fantasy Outlook
Sterner will pitch in middle relief after he was claimed by the A's off waivers from the Rays in the offseason. Sterner had strong strikeout rates in the minors with a 31.4% K% at Triple-A last season. He's been prone to giving up home runs (1.36 HR/9 at Triple-A) and doesn't have great velocity. His upside may also be limited at age 28. Still, he could be a productive reliever for a team desperate for bullpen arms. Read Past Outlooks
Signed a one-year contract with the Athletics in March of 2025.
Strikes out side
PSacramento Athletics
August 28, 2025
Sterner struck out the side in a perfect inning during Wednesday's 7-0 win over the Tigers.
Analysis
Sterner retired the side on strikeouts in the eighth inning Wednesday, the first time this season he's done so in order. The right-hander has been sharp in August, posting a 1.98 ERA and 0.59 WHIP across 13.2 innings in 11 appearances.
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Pitching Stats
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2025 MLB Game Log
2025
2024
2025 MLB Game Log
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2024 MLB Game Log
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Pitching Appearances Breakdown
Average Pitch Count
18
Last 10 Games
22
Last 5 Games
20
How many pitches does Justin Sterner 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 Sterner 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 2023
 
 
-39%
BAA vs LHP
2025
 
 
-40%
BAA vs LHP
2024
 
 
-41%
BAA vs LHP
2023
No Stats
BAA Batters K BB H 2B 3B HR
Since 2023vs Left .157 103 24 9 14 1 0 4
Since 2023vs Right .258 139 35 10 32 6 0 5
2025vs Left .150 93 22 8 12 0 0 4
2025vs Right .250 130 33 10 29 5 0 5
2024vs Left .222 10 2 1 2 1 0 0
2024vs Right .375 9 2 0 3 1 0 0
2023vs Left 0 0 0 0 0 0 0 0
2023vs Right 0 0 0 0 0 0 0 0
More Splits View More Split Stats
Home/Away Pitching Splits
Since 2023
 
 
-22%
ERA at Home
2025
 
 
-27%
ERA at Home
2024
 
 
-100%
ERA at Home
2023
No Stats
ERA WHIP IP W L SV K/9 BB/9 HR/9
Since 2023Home 3.10 0.83 29.0 2 1 0 8.7 2.5 1.9
Since 2023Away 3.99 1.40 29.1 1 2 0 9.5 3.4 0.9
2025Home 3.10 0.83 29.0 2 1 0 8.7 2.5 1.9
2025Away 4.26 1.38 25.1 1 2 0 9.6 3.6 1.1
2024Home 0 0 0 0 0 0 0 0 0
2024Away 2.25 1.50 4.0 0 0 0 9.0 2.3 0.0
2023Home 0 0 0 0 0 0 0 0 0
2023Away 0 0 0 0 0 0 0 0 0
More Splits View More Split Stats
Stat Review
How does Justin Sterner 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
3.06
 
K/9
9.1
 
BB/9
3.0
 
HR/9
1.5
 
Fastball
93.5 mph
 
ERA
3.64
 
WHIP
1.09
 
BABIP
.246
 
GB/FB
0.59
 
Left On Base
77.6%
 
Exit Velocity
82.2 mph
 
Barrels/BBE
6.3%
 
Spin Rate
2511 rpm
 
Balls Hit 95+ MPH
23.5%
 
Swinging Strike
14.0%
 
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 Justin Sterner See More
Recent RotoWire Articles Featuring Justin Sterner See More
More Fantasy News
Summoned to big leagues
PSacramento Athletics
June 30, 2025
The Athletics recalled Sterner from Triple-A Las Vegas on Monday.
Analysis
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Moving to Triple-A
PSacramento Athletics
June 5, 2025
The Athletics optioned Sterner to Triple-A Las Vegas on Thursday, Martin Gallegos of MLB.com reports.
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Opening Wednesday
PSacramento Athletics
June 4, 2025
Sterner will serve as the opener in Wednesday's game against Minnesota.
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Extends scoreless streak
PSacramento Athletics
April 30, 2025
Sterner allowed a walk while striking out two over a scoreless inning Wednesday against the Rangers. He's thrown 14.2 scoreless innings to begin the season.
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Scoreless inning in team debut
PSacramento Athletics
March 29, 2025
Sterner didn't allow a hit but gave up two walks while striking out one over two-thirds of a scoreless inning Friday against the Mariners.
Analysis
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