2025 Stats
W-L
1-3
ERA
5.67
WHIP
1.65
K
63
SV
1
2026 Projections
2026 Fantasy Outlook
Montgomery's first full season in the majors didn't live up to the potential he showcased during his 2024 cup of coffee with the Rays. The 25-year-old's surface stats were lackluster across 46 innings with Tampa Bay, while his 12.9 percent walk rate was 10th-worst among relievers who logged a minimum of 40 innings. However, Montgomery had one of the highest discrepancies between ERA (5.67) and xFIP (3.56) and was unlucky given the expected batting average against his fastball (.266) was more promising than his actual results (.311). The southpaw added velocity on his four-seamer - it averaged 98.7 mph (97th percentile), which was nearly a mile-and-a-half faster than 2024 - while producing the 11th-highest whiff rate for the pitch type at 31.4 percent. There's upside in Montgomery's profile, and after a recent trade to Pittsburgh, there's a path for him to work his way up the Pirates' high leverage hierarchy in 2026. Read Past Outlooks
Signed a one-year contract with the Rays in March of 2025. Traded to the Pirates in December of 2025.
Lands with Pirates in trade
The Pirates acquired Montgomery from the Rays on Friday in a three-team trade, Chandler Rome and Ken Rosenthal of The Athletic report.
Analysis
Montgomery logged a 5.67 ERA and walked 27 over 46 innings with the Rays in 2025, but he also struck out 63 batters and, at 98.7 mph, has one of the hardest average four-seamer velocities in the game. The lefty has past starting experience, but the Pirates are likely to keep Montgomery in the bullpen, and he could work his way into high-leverage appearances.
Montgomery logged a 5.67 ERA and walked 27 over 46 innings with the Rays in 2025, but he also struck out 63 batters and, at 98.7 mph, has one of the hardest average four-seamer velocities in the game. The lefty has past starting experience, but the Pirates are likely to keep Montgomery in the bullpen, and he could work his way into high-leverage appearances.
Pitching Stats
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2025 MLB Game Log
2025
2024
Minor League Game Log
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Pitching Appearances Breakdown
Average Pitch Count
15
Last 10 Games
16
Last 5 Games
19
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
-38%
BAA vs LHP
2025
-41%
BAA vs LHP
| BAA | K | BB | H | HR | ||||
|---|---|---|---|---|---|---|---|---|
| Since 2023vs Left | .190 | 31 | 13 | 15 | 1 | |||
| Since 2023vs Right | .308 | 49 | 19 | 40 | 5 | |||
| 2025vs Left | .194 | 24 | 11 | 13 | 1 | |||
| 2025vs Right | .327 | 39 | 16 | 36 | 5 | |||
| 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
-56%
ERA at Home
2025
-64%
ERA at Home
| ERA | WHIP | IP | K/9 | BB/9 | |||||
|---|---|---|---|---|---|---|---|---|---|
| Since 2023Home | 3.10 | 1.48 | 29.0 | 11.5 | 3.7 | ||||
| Since 2023Away | 7.09 | 1.65 | 26.2 | 14.5 | 6.8 | ||||
| 2025Home | 3.29 | 1.46 | 27.1 | 11.5 | 3.6 | ||||
| 2025Away | 9.16 | 1.93 | 18.2 | 13.5 | 7.7 | ||||
| 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
2.33K/9
12.3BB/9
5.3HR/9
1.2Fastball
98.8 mphERA
5.67WHIP
1.65BABIP
.392GB/FB
1.36Left On Base
65.1%Exit Velocity
81.4 mphBarrels/BBE
5.1%Spin Rate
2384 rpmBalls Hit 95+ MPH
23.6%Swinging Strike
16.8%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
2025
2024
2023
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.
More Fantasy News
Optioned after poor relief outing
The Rays optioned Montgomery to Triple-A Durham on Thursday.
Analysis
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Receives call-up
The Rays recalled Montgomery from Triple-A Durham on Friday, Marc Topkin of the Tampa Bay Times reports.
Analysis
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Sent down to minors
The Rays optioned Montgomery to Triple-A Durham on Monday.
Analysis
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Picks up first save
Montgomery retired the only batter he faced to pick up the save in Tuesday's win over the Blue Jays.
Analysis
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Mediocre start to season
Montgomery allowed one earned run on one hit and one walk while striking out two Thursday against the Royals.
Analysis
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Latest Fantasy Rumors
High hopes from Pittsburgh
The Pirates have high expectations for Montgomery after acquiring him from the Rays in December, with GM Ben Cherington noting that the left-hander is "a particularly good fit at PNC [Park]", reports John Perrotto of PittsburghBaseballNow.com.
Analysis
Montgomery was part of the three-team trade that also brought Brandon Lowe and Jake Mangum to Pittsburgh. The left-hander scuffled a bit in 2025 with a 5.67 ERA and 1.65 WHIP in 57 appearances, but he has an electric fastball that averaged nearly 99 mph. Montgomery could quickly work his way into a high-leverage role if he can right the ship in Pittsburgh.
Montgomery was part of the three-team trade that also brought Brandon Lowe and Jake Mangum to Pittsburgh. The left-hander scuffled a bit in 2025 with a 5.67 ERA and 1.65 WHIP in 57 appearances, but he has an electric fastball that averaged nearly 99 mph. Montgomery could quickly work his way into a high-leverage role if he can right the ship in Pittsburgh.