Isaiah Campbell

Isaiah Campbell

27-Year-Old PitcherRP
Boston Red Sox AAA
2025 Fantasy Outlook
There was no outlook written for Isaiah Campbell in 2025. Check out the latest news below for more on his current fantasy value.
Signed a minor-league contract with the Red Sox in November of 2024.
Quickly back to minors
PBoston Red Sox  AAA
July 10, 2025
Campbell was optioned to Triple-A Worcester on Thursday, Christopher Smith of MassLive.com reports.
Analysis
Campbell had his contract selected Tuesday and made his season debut in the majors one day later. The move likely signifies the return of Hunter Dobbins (elbow), but an official corresponding move has not yet been announced.
Read More News
Pitching Stats
Loading Pitching Stats...
2025 MLB Game Log
2025
2024
2023
2020
2025 MLB Game Log
Calculate Stats Over Time
Just click on any two dates.
Scoring
FanDuel
DraftKings
Yahoo DFS
Sorare
Loading Pitching Game Log...
2024 MLB Game Log
Calculate Stats Over Time
Just click on any two dates.
Scoring
FanDuel
DraftKings
Yahoo DFS
Sorare
Loading Pitching Game Log...
2023 MLB Game Log
Calculate Stats Over Time
Just click on any two dates.
Scoring
FanDuel
DraftKings
Yahoo DFS
Sorare
Loading Pitching Game Log...
2020 MLB Game Log
Calculate Stats Over Time
Just click on any two dates.
Scoring
FanDuel
DraftKings
Yahoo DFS
Sorare
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
24
Last 10 Games
24
Last 5 Games
24
How many pitches does Isaiah Campbell 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 Isaiah Campbell 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
 
 
-2%
BAA vs LHP
2025
 
 
-50%
BAA vs RHP
2024
 
 
-20%
BAA vs RHP
2023
 
 
-33%
BAA vs LHP
BAA Batters K BB H 2B 3B HR
Since 2023vs Left .266 70 25 5 17 2 0 3
Since 2023vs Right .271 96 14 10 23 4 1 3
2025vs Left .667 3 0 0 2 0 0 0
2025vs Right .333 6 0 0 2 0 0 1
2024vs Left .444 19 3 1 8 2 0 2
2024vs Right .353 18 3 1 6 1 0 1
2023vs Left .163 48 22 4 7 0 0 1
2023vs Right .242 72 11 9 15 3 1 1
Home/Away Pitching Splits
Since 2023
 
 
-61%
ERA on Road
2025
 
 
-100%
ERA on Road
2024
 
 
-95%
ERA on Road
2023
 
 
-42%
ERA at Home
ERA WHIP IP W L SV K/9 BB/9 HR/9
Since 2023Home 8.15 1.81 17.2 2 1 1 9.2 4.1 2.0
Since 2023Away 3.20 1.17 19.2 2 1 0 9.6 3.2 0.9
2025Home 9.00 2.00 2.0 0 0 0 0.0 0.0 4.5
2025Away 0 0 0 0 0 0 0 0 0
2024Home 42.43 5.14 2.1 0 1 0 7.7 3.9 11.6
2024Away 2.08 0.92 4.1 0 0 0 8.3 2.1 0.0
2023Home 2.03 1.20 13.1 2 0 1 10.8 4.7 0.0
2023Away 3.52 1.24 15.1 2 1 0 10.0 3.5 1.2
Minor League Left/Right Pitching Splits (AAA)
Since 2023
 
 
-15%
BAA vs RHP
2025
 
 
-22%
BAA vs RHP
2024
 
 
-12%
BAA vs LHP
2023
No Stats
BAA Batters K BB H 2B 3B HR
Since 2023vs Left .313 110 17 10 30 4 0 4
Since 2023vs Right .266 133 35 6 33 7 1 2
2025vs Left .358 75 10 6 24 4 0 1
2025vs Right .278 98 23 5 25 6 1 2
2024vs Left .207 35 7 4 6 0 0 3
2024vs Right .235 35 12 1 8 1 0 0
2023vs Left 0 0 0 0 0 0 0 0
2023vs Right 0 0 0 0 0 0 0 0
Stat Review
How does Isaiah Campbell 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
0.00
 
K/9
0.0
 
BB/9
0.0
 
HR/9
4.5
 
Fastball
0.0 mph
 
ERA
9.00
 
WHIP
2.00
 
BABIP
.347
 
GB/FB
2.50
 
Left On Base
76.9%
 
Exit Velocity
0.0 mph
 
Barrels/BBE
0.0%
 
Spin Rate
0 rpm
 
Balls Hit 95+ MPH
0.0%
 
Swinging Strike
4.2%
 
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 Isaiah Campbell See More
Recent RotoWire Articles Featuring Isaiah Campbell See More
2024 Fantasy Outlook
Campbell began the season with Double-A Arkansas. He had recorded a shiny 2.63 ERA and 1.04 WHIP in 24 innings, fanning 27 while issuing seven walks before being called up by the Mariners in early July. Campbell was quickly optioned back to Double-A, but it wasn't long before he was recalled, spending the duration of the season in the Seattle bullpen. The right-hander impressed with a 2.83 ERA and 1.22 WHIP with 33 punch outs in 28.2 stanzas. Dealing from an area of strength, the Mariners sent Campbell to the Red Sox for infielder Luis Urias. Campbell should be given a chance to break camp with a spot in the Red Sox bullpen. The 26-year-old has the stuff to be a late-inning reliever, but he'll have to work his way up the ladder, which could entail beginning the season with Triple-A Worcester.
More Fantasy News
Contract selected
PBoston Red Sox  AAA
July 8, 2025
The Red Sox selected Campbell's contract from Triple-A Worcester on Tuesday.
Analysis
Subscribe now to instantly reveal our take on this news.
Sent out to minor-league camp
PBoston Red Sox  AAA
March 17, 2025
The Red Sox reassigned Campbell to minor-league camp Monday.
Analysis
Subscribe now to instantly reveal our take on this news.
Slated to pitch Thursday
PBoston Red Sox  AAA
February 27, 2025
Campbell (elbow) is listed as one of Boston's scheduled pitchers for Thursday's Grapefruit League game against Detroit, Evan Woodbery of MLive.com reports.
Analysis
Subscribe now to instantly reveal our take on this news.
Quick return to Boston
PBoston Red Sox  AAA
Elbow
November 22, 2024
Campbell (elbow) agreed to a minor-league deal with the Red Sox on Friday, Chris Cotillo of MassLive.com reports.
Analysis
Subscribe now to instantly reveal our take on this news.
Non-tendered by Red Sox
PFree Agent  AAA
Elbow
November 22, 2024
Boston non-tendered Campbell (elbow) on Friday, Mac Cerullo of the Boston Herald reports.
Analysis
Subscribe now to instantly reveal our take on this news.