2025 Stats
W-L
0-0
ERA
7.04
WHIP
1.83
K
3
SV
0
Rest-of-Season Projections
Signed a minor-league contract with the Red Sox in November of 2024.
Cleared from 40-man roster
The Red Sox outrighted Campbell to Triple-A Worcester on Thursday.
Analysis
Campbell has been torched for 19 runs (18 earned) over 14.1 innings over the last two seasons during his brief time with the Red Sox. He's no longer on the 40-man roster but will remain in the organization for the time being.
Campbell has been torched for 19 runs (18 earned) over 14.1 innings over the last two seasons during his brief time with the Red Sox. He's no longer on the 40-man roster but will remain in the organization for the time being.
Pitching Stats
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2025 MLB Game Log
2025
2024
2023
2020
Minor League Game Log
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Pitching Appearances Breakdown
Average Pitch Count
18
Last 10 Games
18
Last 5 Games
17
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+
What part of the game does Isaiah Campbell generally pitch?
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
-3%
BAA vs LHP
2025
-20%
BAA vs RHP
| BAA | K | BB | H | HR | |
|---|---|---|---|---|---|
| Since 2023vs Left | .278 | 25 | 6 | 20 | 3 |
| Since 2023vs Right | .287 | 17 | 10 | 29 | 3 |
| 2025vs Left | .455 | 0 | 1 | 5 | 0 |
| 2025vs Right | .364 | 3 | 0 | 8 | 1 |
| 2024vs Left | .444 | 3 | 1 | 8 | 2 |
| 2024vs Right | .353 | 3 | 1 | 6 | 1 |
| 2023vs Left | .163 | 22 | 4 | 7 | 1 |
| 2023vs Right | .242 | 11 | 9 | 15 | 1 |
Home/Away Pitching Splits
Since 2023
-69%
ERA on Road
2025
-100%
ERA on Road
| ERA | WHIP | IP | K/9 | BB/9 | |
|---|---|---|---|---|---|
| Since 2023Home | 8.85 | 1.92 | 20.1 | 8.9 | 3.5 |
| Since 2023Away | 2.78 | 1.15 | 22.2 | 8.7 | 3.2 |
| 2025Home | 11.57 | 2.36 | 4.2 | 3.9 | 0.0 |
| 2025Away | 0.00 | 1.00 | 3.0 | 3.0 | 3.0 |
| 2024Home | 42.43 | 5.14 | 2.1 | 7.7 | 3.9 |
| 2024Away | 2.08 | 0.92 | 4.1 | 8.3 | 2.1 |
| 2023Home | 2.03 | 1.20 | 13.1 | 10.8 | 4.7 |
| 2023Away | 3.52 | 1.24 | 15.1 | 10.0 | 3.5 |
Minor League Left/Right Pitching Splits (AAA)
Since 2023
-1%
BAA vs RHP
2025
-4%
BAA vs RHP
| BAA | K | BB | H | HR | |
|---|---|---|---|---|---|
| Since 2023vs Left | .278 | 24 | 19 | 37 | 5 |
| Since 2023vs Right | .275 | 42 | 7 | 44 | 3 |
| 2025vs Left | .298 | 17 | 15 | 31 | 2 |
| 2025vs Right | .286 | 30 | 6 | 36 | 3 |
| 2024vs Left | .207 | 7 | 4 | 6 | 3 |
| 2024vs Right | .235 | 12 | 1 | 8 | 0 |
| 2023vs Left | 0 | 0 | 0 | 0 | 0 |
| 2023vs Right | 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.
* 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
3.00K/9
3.5BB/9
1.2HR/9
1.2Fastball
95.6 mphERA
7.04WHIP
1.83BABIP
.392GB/FB
4.75Left On Base
63.5%Exit Velocity
83.2 mphBarrels/BBE
2.3%Spin Rate
2685 rpmBalls Hit 95+ MPH
25.0%Swinging Strike
11.0%Advanced Pitching Stats
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Defensive Stats
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Stats Vs Today's Lineup
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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
Sent back to minors
The Red Sox optioned Campbell to Triple-A Worcester on Wednesday.
Analysis
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Recalled from Triple-A
The Red Sox recalled Campbell from Triple-A Worcester on Tuesday.
Analysis
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Quickly back to minors
Campbell was optioned to Triple-A Worcester on Thursday, Christopher Smith of MassLive.com reports.
Analysis
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Contract selected
The Red Sox selected Campbell's contract from Triple-A Worcester on Tuesday.
Analysis
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Sent out to minor-league camp
The Red Sox reassigned Campbell to minor-league camp Monday.
Analysis
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