2025 Stats
W-L
0-1
ERA
3.00
WHIP
2.33
K
0
SV
1
Rest-of-Season Projections
2025 Fantasy Outlook
We haven't seen Jameson on a major-league mound since July of 2023, as he eventually required Tommy John surgery in September of that year. The expectation is that he will be ready to roll on Opening Day of this season, and the Diamondbacks plan for him to operate in a relief role. Jameson came up through the minors and broke into the majors as a starter, but he had been pitching in relief before his elbow blew out and was having success. Prior to the injury, Jameson reached the upper-90s with his fastball with regularity while also showcasing a wipeout slider. He could be a potential closer if things break right, but there are unknowns with Jameson in 2025 in regard to how his stuff bounces back from surgery and what his usage will look like. Read Past Outlooks

Demoted to Triple-A
Jameson was optioned to Triple-A Reno on Monday, Aaron Hughes of SI.com reports.
ANALYSIS
Jameson appeared in three games during his stint with the big-league club, one of which resulted in his first save April 20 against the Cubs. This move will presumably clear a roster spot for the return of Kevin Ginkel (shoulder) from the 15-day injured list, though the club has yet to officially announce a corresponding move.
Jameson appeared in three games during his stint with the big-league club, one of which resulted in his first save April 20 against the Cubs. This move will presumably clear a roster spot for the return of Kevin Ginkel (shoulder) from the 15-day injured list, though the club has yet to officially announce a corresponding move.
Pitching Stats
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2025
2024
2023
2022
Minor League Game Log

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Pitching Appearances Breakdown
Average Pitch Count
18
Last 10 Games
18
Last 5 Games
18
How many pitches does Drey Jameson 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 Drey Jameson 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
Even Split
2025
-57%
BAA vs LHP
BAA | K | BB | H | HR | |
---|---|---|---|---|---|
Since 2023vs Left | .268 | 15 | 8 | 22 | 2 |
Since 2023vs Right | .268 | 22 | 13 | 22 | 4 |
2025vs Left | .286 | 0 | 1 | 2 | 0 |
2025vs Right | .667 | 0 | 2 | 2 | 0 |
2024vs Left | 0 | 0 | 0 | 0 | 0 |
2024vs Right | 0 | 0 | 0 | 0 | 0 |
2023vs Left | .267 | 15 | 7 | 20 | 2 |
2023vs Right | .253 | 22 | 11 | 20 | 4 |
Home/Away Pitching Splits
Since 2023
-13%
ERA at Home
2025
-100%
ERA on Road
ERA | WHIP | IP | K/9 | BB/9 | |
---|---|---|---|---|---|
Since 2023Home | 3.14 | 1.47 | 28.2 | 7.5 | 4.1 |
Since 2023Away | 3.60 | 1.53 | 15.0 | 7.8 | 4.8 |
2025Home | 4.50 | 3.50 | 2.0 | 0.0 | 13.5 |
2025Away | 0.00 | 0.00 | 1.0 | 0.0 | 0.0 |
2024Home | 0 | 0 | 0 | 0 | 0 |
2024Away | 0 | 0 | 0 | 0 | 0 |
2023Home | 3.04 | 1.31 | 26.2 | 8.1 | 3.4 |
2023Away | 3.86 | 1.64 | 14.0 | 8.4 | 5.1 |
Minor League Left/Right Pitching Splits (AAA)
Since 2023
-4%
BAA vs LHP
2025
-48%
BAA vs LHP
BAA | K | BB | H | HR | |
---|---|---|---|---|---|
Since 2023vs Left | .268 | 14 | 5 | 15 | 2 |
Since 2023vs Right | .278 | 20 | 6 | 22 | 2 |
2025vs Left | .182 | 4 | 0 | 2 | 1 |
2025vs Right | .353 | 6 | 0 | 6 | 1 |
2024vs Left | 0 | 0 | 0 | 0 | 0 |
2024vs Right | 0 | 0 | 0 | 0 | 0 |
2023vs Left | .289 | 10 | 5 | 13 | 1 |
2023vs Right | .258 | 14 | 6 | 16 | 1 |
Stat Review
How does Drey Jameson 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
0.00K/9
0.0BB/9
9.0HR/9
0.0Fastball
97.3 mphERA
3.00WHIP
2.33BABIP
.321GB/FB
4.00Left On Base
71.4%Exit Velocity
87.3 mphBarrels/BBE
0.0%Spin Rate
2195 rpmBalls Hit 95+ MPH
33.3%Swinging Strike
5.7%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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Past Fantasy Outlooks
2024
2023
Jameson, coming off an impressive four-start run late in 2022, competed for a starting job during Spring Training but lost out to Ryne Nelson and began 2023 as a multi-inning reliever in the majors. He pitched as both a starter and reliever, but it was out of the bullpen where Jameson popped, posting a 2.81 ERA over 32 relief innings. The right-hander, who was sent down to the minors in May, rediscovered his slider there and shined out of the bullpen after being recalled. Everything changed in July, when he felt something in his forearm, which eventually turned out to be a ligament in his elbow. Jameson put off surgery, hoping to pitch again, but the right-hander was eventually shut down and underwent Tommy John surgery in September. As such, he's unlikely to pitch in 2024.
More Fantasy News

Picks up first save
Jameson earned a save with a scoreless inning during Sunday's extra-innings win over the Cubs.
ANALYSIS
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Up from Triple-A
The Diamondbacks recalled Jameson from Triple-A Reno on Saturday.
ANALYSIS
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Bid for Opening Day roster ends
The Diamondbacks optioned Jameson to Triple-A Reno on Wednesday.
ANALYSIS
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Allows first spring run
Jameson allowed one run on two hits and one walk over one inning of relief in Monday's Cactus League game against the Dodgers.
ANALYSIS
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Making spring debut Wednesday
Jameson (elbow) is scheduled to make his Cactus League debut in Wednesday's game against the Brewers, Jack Sommers of SI.com reports.
ANALYSIS
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