2025 Stats
W-L
0-1
ERA
5.40
WHIP
1.00
K
8
SV
0
Rest-of-Season Projections
2025 Fantasy Outlook
Montgomery was once a highly rated prospect in the Rays organization, but he was becoming increasingly more hittable as he moved up in the organization, and the club decided to move him to the pen after a July 12th loss left him 0-6 with a 6.62 ERA in the Durham rotation. Montgomery then went on to work in the bullpen for the Bulls where he struck out 30 in 18.1 innings of work and earned a promotion to the big leagues in early September. Montgomery went on to strike out 17 of the 37 batters he faced in September with a new-found upper 90s fastball and sharp slider. Simply put, Montgomery has found his new home in the bullpen as someone who can come in and get punches when needed and should be particularly tough on lefties with his fastball/slider combination if he and the club choose to pair down his offerings to that combination. As it stands now, he could be the primary lefty out of the pen in high-leverage situations with the departure of Colin Poche who previously held that role. Read Past Outlooks
Summoned from minors
The Rays selected Montgomery's contract from Triple-A Durham on Thursday, Tricia Whitaker of Bally Sports Sun reports.
ANALYSIS
Montgomery has taken off since moving to the bullpen full-time at Durham last month, turning in 9.2 scoreless innings with a 20:5 K:BB. The left-hander could eventually work his way into high-leverage situations but should work in middle relief initially. Montgomery will be making his major-league debut when/if he gets into a game.
Montgomery has taken off since moving to the bullpen full-time at Durham last month, turning in 9.2 scoreless innings with a 20:5 K:BB. The left-hander could eventually work his way into high-leverage situations but should work in middle relief initially. Montgomery will be making his major-league debut when/if he gets into a game.
Pitching Stats
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2025
2024
Minor League Game Log
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Pitching Appearances Breakdown
Average Pitch Count
14
Last 10 Games
14
Last 5 Games
14
How many pitches does Mason Montgomery 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 Mason Montgomery 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
-13%
BAA vs LHP
2025
-6%
BAA vs RHP
| BAA | K | BB | H | HR | ||||
|---|---|---|---|---|---|---|---|---|
| Since 2023vs Left | .188 | 9 | 2 | 3 | 0 | |||
| Since 2023vs Right | .216 | 16 | 3 | 8 | 2 | |||
| 2025vs Left | .250 | 2 | 0 | 1 | 0 | |||
| 2025vs Right | .235 | 6 | 0 | 4 | 2 | |||
| 2024vs Left | .167 | 7 | 2 | 2 | 0 | |||
| 2024vs Right | .200 | 10 | 3 | 4 | 0 | |||
| 2023vs Left | 0 | 0 | 0 | 0 | 0 | |||
| 2023vs Right | 0 | 0 | 0 | 0 | 0 | |||
| More Splits→ | View More Split Stats | |||||||
Home/Away Pitching Splits
Since 2023
-60%
ERA at Home
2025
-88%
ERA at Home
| ERA | WHIP | IP | K/9 | BB/9 | |||||
|---|---|---|---|---|---|---|---|---|---|
| Since 2023Home | 1.59 | 1.06 | 5.2 | 11.1 | 1.6 | ||||
| Since 2023Away | 4.00 | 1.11 | 9.0 | 18.0 | 4.0 | ||||
| 2025Home | 2.25 | 0.75 | 4.0 | 11.3 | 0.0 | ||||
| 2025Away | 18.00 | 2.00 | 1.0 | 27.0 | 0.0 | ||||
| 2024Home | 0.00 | 1.80 | 1.2 | 10.8 | 5.4 | ||||
| 2024Away | 2.25 | 1.00 | 8.0 | 16.9 | 4.5 | ||||
| 2023Home | 0 | 0 | 0 | 0 | 0 | ||||
| 2023Away | 0 | 0 | 0 | 0 | 0 | ||||
| More Splits→ | View More Split Stats | ||||||||
Stat Review
How does Mason Montgomery 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
14.4BB/9
0.0HR/9
3.6Fastball
99.3 mphERA
5.40WHIP
1.00BABIP
.330GB/FB
0.43Left On Base
90.9%Exit Velocity
80.4 mphBarrels/BBE
14.3%Spin Rate
2414 rpmBalls Hit 95+ MPH
19.0%Swinging Strike
27.5%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
Montgomery has had a successful run in the Rays system since being drafted in the 6th round of the 2021 draft. The lefty has gone 14-7 with a 2.95 ERA, a 1.17 WHIP, and has 335 punchouts in 259 innings of work getting all the way up to Triple-A Durham to finish the 2023 season. He follows the organizational blueprint of working off a riding fastball with a great feel for a changeup while working in a slider. His Double-A numbers were likely impacted by the experimental testing of the baseballs in the Southern League as Montgomery was uncharacteristically generous with his walks and homers but remains on track to be in the periphery of consideration for usage by the Rays in 2024. He is currently not on their 40-man roster which inhibits his path to fantasy viability in 2024 unless the Rays either go through another round of injury attrition or the club does some roster reshuffling in December or January.
More Fantasy News
Moved to bullpen at Triple-A
Montgomery has struck out six batters while allowing four hits and no walks over four scoreless innings across four appearances for Triple-A Durham since moving back to the bullpen Aug. 8.
ANALYSIS
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Missing bats at Double-A
Montgomery has a 3.99 ERA, 1.10 WHIP and 66:19 K:BB in 47.1 innings over his last 10 starts for Double-A Montgomery.
ANALYSIS
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Dominant in two Double-A starts
Montgomery has a 1.50 ERA, 1.00 WHIP and 10 strikeouts in six innings through two starts with Double-A Montgomery.
ANALYSIS
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