2025 Stats
W-L
1-0
ERA
3.57
WHIP
1.58
K
9
SV
1
Rest-of-Season Projections
2025 Fantasy Outlook
Criswell did a little bit of everything for the Boston pitching staff in 2024. He worked out of the pen as well as in the rotation as injuries impacted the rotation. Peak Criswell was him throwing seven shutout innings at Coors Field near the end of July, which was one of the five starts in which he earned a win out of his 18 starts. The flip side was his effort against Baltimore, as he faced them twice and allowed 13 earned runs in 7.1 innings of work, which did a number on his overall ratios. Criswell has enough stuff to succeed at the big-league level but not enough stuff to be a set-it-and-forget-it type pitcher for fantasy managers. The righty had his issues against fellow righties last season (.283/.335/.476), but his cutter/changeup approach to lefties helped him hold that group to a .263/.332/.366 line on the season. Criswell is currently slated to compete for a final spot in the Boston rotation, but could go to the bullpen or to Triple-A to begin the season as well. His ceiling is a streaming option, particularly against lefty-heavy lineups. Read Past Outlooks
Signed a one-year contract with the Red Sox in March of 2025.
Placed on IL at Triple-A
Triple-A Worcester placed Criswell on its 7-day injured list Wednesday due to right elbow inflammation, Chris Cotillo of MassLive.com reports.
Analysis
Criswell has spent most of the 2025 season at Worcester but has appeared in seven games (one start) with the Red Sox, logging a 3.57 ERA, 1.59 WHIP and 9:5 K:BB across 17.2 innings. He's submitted a 3.70 ERA, 1.34 WHIP and 68:28 K:BB across 65.2 innings at Triple-A and will now be unavailable for at least the next week.
Criswell has spent most of the 2025 season at Worcester but has appeared in seven games (one start) with the Red Sox, logging a 3.57 ERA, 1.59 WHIP and 9:5 K:BB across 17.2 innings. He's submitted a 3.70 ERA, 1.34 WHIP and 68:28 K:BB across 65.2 innings at Triple-A and will now be unavailable for at least the next week.
Pitching Stats
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2025 MLB Game Log
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2024
2023
2022
2021
Minor League Game Log
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Pitching Appearances Breakdown
Average Pitch Count
39
Last 10 Games
39
Last 5 Games
49
How many pitches does Cooper Criswell 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 Cooper Criswell 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
-1%
BAA vs LHP
2025
Even Split
| BAA | K | BB | H | HR | |
|---|---|---|---|---|---|
| Since 2023vs Left | .282 | 48 | 27 | 75 | 5 |
| Since 2023vs Right | .284 | 61 | 20 | 91 | 14 |
| 2025vs Left | .310 | 3 | 1 | 9 | 0 |
| 2025vs Right | .311 | 6 | 4 | 14 | 3 |
| 2024vs Left | .263 | 39 | 18 | 49 | 2 |
| 2024vs Right | .283 | 34 | 13 | 54 | 8 |
| 2023vs Left | .333 | 6 | 8 | 17 | 3 |
| 2023vs Right | .274 | 21 | 3 | 23 | 3 |
Home/Away Pitching Splits
Since 2023
-14%
ERA at Home
2025
-43%
ERA on Road
| ERA | WHIP | IP | K/9 | BB/9 | |
|---|---|---|---|---|---|
| Since 2023Home | 4.07 | 1.44 | 79.2 | 6.2 | 3.3 |
| Since 2023Away | 4.73 | 1.39 | 70.1 | 6.9 | 2.3 |
| 2025Home | 3.95 | 1.54 | 13.2 | 4.6 | 2.6 |
| 2025Away | 2.25 | 1.75 | 4.0 | 4.5 | 2.3 |
| 2024Home | 4.10 | 1.37 | 48.1 | 6.3 | 3.2 |
| 2024Away | 4.06 | 1.33 | 51.0 | 6.9 | 2.5 |
| 2023Home | 4.08 | 1.58 | 17.2 | 7.1 | 4.1 |
| 2023Away | 7.63 | 1.50 | 15.1 | 7.6 | 1.8 |
Minor League Left/Right Pitching Splits (AAA)
Since 2023
-13%
BAA vs RHP
2025
-6%
BAA vs RHP
| BAA | K | BB | H | HR | |
|---|---|---|---|---|---|
| Since 2023vs Left | .268 | 68 | 34 | 85 | 10 |
| Since 2023vs Right | .233 | 103 | 25 | 83 | 4 |
| 2025vs Left | .254 | 28 | 16 | 32 | 4 |
| 2025vs Right | .239 | 40 | 12 | 28 | 2 |
| 2024vs Left | .250 | 9 | 8 | 11 | 0 |
| 2024vs Right | .196 | 14 | 0 | 10 | 0 |
| 2023vs Left | .286 | 31 | 10 | 42 | 6 |
| 2023vs Right | .239 | 49 | 13 | 45 | 2 |
Stat Review
How does Cooper Criswell 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
1.80K/9
4.6BB/9
2.5HR/9
1.5Fastball
89.5 mphERA
3.57WHIP
1.58BABIP
.329GB/FB
1.94Left On Base
75.6%Exit Velocity
81.3 mphBarrels/BBE
4.9%Spin Rate
2004 rpmBalls Hit 95+ MPH
23.5%Swinging Strike
6.9%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
Criswell spent the year in the Rays organization, mostly toiling for Triple-A Durham, but he also compiled 33 frames in 10 appearances with the big club serving as a multi-inning reliever. Criswell started in 17 of his 23 appearances with the Bulls, fanning 80 with 23 walks in 84.2 innings for a 15.4 percent K-BB%. He was unable to match that with the Rays as he recorded a 10.6 percent K-BB%, along with surrendering six homers in those 33 innings. Small sample caveats apply, but Criswell incurred some misfortune with a .330 BABIP, 68.7 percent left on base mark and a 19.4 percent home run per fly ball. The result was a 5.73 ERA, deemed over a run too high by its estimators. When Tampa Bay gives up on a pitcher, there is usually a reason, but that did not dissuade the Red Sox from signing Criswell, ostensibly for bullpen depth. It's hard to envision Criswell entering the fantasy mix.
More Fantasy News
Dispatched to Triple-A
The Red Sox optioned Criswell to Triple-A Worcester on Saturday.
Analysis
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Goes seven strong in spot start
Criswell did not factor into the decision in Friday's 2-1 extra-inning win over the Astros, allowing one run on seven hits and two walks with four strikeouts over seven innings.
Analysis
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Starting Friday vs. Astros
Criswell will start Friday's game against the Astros, Chris Cotillo of MassLive.com reports.
Analysis
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Receives promotion
The Red Sox recalled Criswell from Triple-A Worcester on Tuesday, Chris Cotillo of MassLive.com reports.
Analysis
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Returns to Triple-A
The Red Sox optioned Criswell to Triple-A Worcester on Thursday.
Analysis
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Latest Fantasy Rumors
Travelling with Red Sox
Criswell is with the Red Sox in Detroit on Wednesday, Chris Cotillo of MassLive.com reports.
Analysis
Criswell has spent the majority of the season with Triple-A Worcester but has appeared in three games out of the bullpen for the Red Sox, though he's been tagged for eight runs, including five earned, over 3.2 major-league innings. Criswell started in 18 games for Boston in 2024 and has four starts with Worcester this season. While an official transaction hasn't been announced, his presence in Detroit signals a pitching change for the Red Sox. It could that Criswell is there to replace someone who is going on the injured list or a bigger move, perhaps involving the struggling Tanner Houck moving down to Triple-A to regain his All-Star form.
Criswell has spent the majority of the season with Triple-A Worcester but has appeared in three games out of the bullpen for the Red Sox, though he's been tagged for eight runs, including five earned, over 3.2 major-league innings. Criswell started in 18 games for Boston in 2024 and has four starts with Worcester this season. While an official transaction hasn't been announced, his presence in Detroit signals a pitching change for the Red Sox. It could that Criswell is there to replace someone who is going on the injured list or a bigger move, perhaps involving the struggling Tanner Houck moving down to Triple-A to regain his All-Star form.