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Mason Montgomery

#46 - Relief Pitcher

Pittsburgh Pirates

Bats / Throws Left / Left
Date of Birth 6/17/2000 (25)
Height, Weight 6'2", 205 lb
Hometown Austin, TX

2026 Season Stats

MLB Rank MLB Average
Sv IP ERA WHIP K% BB%
0 12.1 3.65 1.38 40.7% 11.1%
96th 1
Sv
139th 10.0
IP
169th 5.21
ERA
199th 1.53
WHIP
4th 22.1%
K%
209th 11.0%
BB%
FB MPH SwStr% CSW% Str-ICR MTK% PLV PLA
98.4 18.0% 32.9% 55.9% 1.8% 5.27 2.65
14th 94.2
FB MPH
37th 12.0%
SwStr%
56th 28.6%
CSW%
71st 49.8%
Str-ICR
39th 4.2%
MTK%
33rd 4.97
PLV
89th 3.58
PLA
Holds List
Rank
12th
Saves+Holds List
Rank
30th

Articles

4/28/2026Expected SP Schedules Weeks 5-6Michael Hanlon

4/28/2026Fantasy Baseball Relief Pitcher Roundup: 4/27Rick Graham

4/28/2026Relief Pitcher Streamer Rankings Fantasy Baseball: 4/28Rick Graham

4/27/2026Relief Pitcher Streamer Rankings Fantasy Baseball: 4/27Rick Graham

4/26/2026Fantasy Baseball Relief Pitcher Roundup: 4/25Rick Graham

See More Articles
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Mason Montgomery Overview

Hide 2026 MLB Percentile | Hide 2026 MLB Average
Year Team G GS IP W-L Sv Hld ERA WHIP xERA FIP xFIP PLA K% BB% H/9 HR/9 BABIP HR/FB% LOB% ICR GB% SwStr% CSW% IPR PLV
2024 TB 9 0 9.2 0-0 0 3 1.86 1.14 3.50 1.10 1.62 2.40 45.9% 13.5% 5.6 0.00 .400 0.0% 81.8% 60.0% 60.0% 24.7% 36.1% 0.81 5.29
2025 TB 57 0 46.0 1-3 1 10 5.67 1.65 4.11 3.92 3.66 3.43 30.1% 12.9% 9.6 1.17 .391 22.2% 65.6% 44.1% 45.3% 18.3% 32.2% 0.67 5.06
2026 PIT 13 2 12.1 1-0 0 4 3.65 1.38 3.86 2.05 2.12 2.65 40.7% 11.1% 8.0 0.73 .400 16.7% 76.9% 46.2% 42.3% 18.0% 32.9% 0.76 5.27
RP MLB Percentile 71 85 57 59-43 0 86 52 38 53 91 96 75 99 39 45 54 9 45 62 10 41 89 83 96 90
RP MLB AVG 8 0 10.0 1-1 1 1 5.21 1.53 4.85 4.86 4.64 3.58 22.1% 11.0% 9.1 1.29 .301 18.9% 71.5% 38.3% 43.9% 12.0% 28.6% 0.49 4.97
Career 79 2 68.0 2-3 1 17 4.76 1.53 3.98 3.20 3.10 3.15 34.0% 12.7% 8.7 0.93 .393 20.0% 69.3% 45.9% 46.2% 19.0% 32.8% 0.71 5.13

Mason Montgomery Repertoire

2024 2025 2026 All
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Mason Montgomery Game Log

Mason Montgomery Standard

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Year Team G GS IP W-L QS Sv Hld P Strikes Balls TBF H 1B 2B 3B HR K BB HB WP
2024 TB 9 0 9.2 0-0 0 0 3 158 101 57 37 6 3 3 0 0 17 5 0 0
2025 TB 57 0 46.0 1-3 0 1 10 859 559 300 209 49 33 10 0 6 63 27 1 1
2026 PIT 13 2 12.1 1-0 0 0 4 222 148 74 54 11 8 2 0 1 22 6 0 1
RP MLB Percentile 71 85 57 59-43 0 0 86 73 77 35 64 28 23 28 13 31 96 25 40 11
RP MLB AVG 8 0 10.0 1-1 0 1 1 180 114 67 46 10 7 2 0 1 10 5 1 1
Career 79 2 68.0 2-3 0 1 17 1,239 808 431 300 66 44 15 0 7 102 38 1 2

Mason Montgomery Advanced

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Year Team K% BB% AVG SLG OPS wOBA BABIP BACON xAVG xwOBA xBABIP xwoBACON EV FB EV LA xERA
2024 TB 45.9% 13.5% .188 .281 .578 .266 .400 .400 .180 .290 .325 .485 91.8 101.5 5.7 3.50
2025 TB 30.1% 12.9% .277 .435 .807 .354 .391 .422 .237 .319 .330 .395 87.6 84.3 11.0 4.11
2026 PIT 40.7% 11.1% .229 .333 .648 .298 .400 .423 .229 .311 .389 .482 89.8 90.8 14.2 3.86
RP MLB Percentile 99 39 49 57 56 53 9 11 51 53 6 10 35 50 49 53
RP MLB AVG 22.1% 11.0% .249 .407 .747 .332 .301 .332 .243 .333 .289 .377 88.4 89.7 13.2 4.85
Career 34.0% 12.7% .257 .397 .749 .339 .393 .420 .228 .319 .339 .425 88.4 86.4 11.1 3.98

Mason Montgomery Pitch › Mix

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Year Team FF% (MPH) SI% (MPH) FC% (MPH) SL% (MPH) ST% (MPH) CB% (MPH) CH% (MPH) FS% (MPH) KN% (MPH) Fastball% Secondary%
2024 TB 72.8% (97.3) - - 27.2% (88.6) - - - - - 72.8% 27.2%
2025 TB 66.1% (98.7) - - 33.8% (89.8) - - - - - 66.1% 33.8%
2026 PIT 65.3% (98.4) 0.9% (98.9) - 14.4% (89.8) - 18.5% (87.1) 0.9% (92.3) - - 66.2% 33.8%
RP MLB Percentile 96 (95) 0 (98) - 23 (92) - 61 (95) 0 (97) - - 90.3% 9.1%
RP MLB AVG 34.9% (94.2) 27.0% (93.8) 20.5% (89.3) 27.6% (85.6) 23.1% (82.5) 18.2% (80.8) 18.9% (86.0) 19.9% (86.4) - (-) 47.5% 52.4%
Career 66.8% (98.5) 0.2% (98.9) - 29.5% (89.6) - 3.3% (87.1) 0.2% (92.3) - - 67.0% 32.9%

Mason Montgomery Pitch › Results

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Year Team FF CSW% SI CSW% FC CSW% SL CSW% ST CSW% CB CSW% CH CSW% FS CSW% KN CSW% Fastball CSW% Secondary CSW%
2024 TB 35.7% (25) - - 37.2% (14) - - - - - 35.7% 37.2%
2025 TB 32.4% (88) - - 32.1% (69) - - - - - 32.4% 32.1%
2026 PIT 33.8% (24) 50.0% (1) - 34.4% (6) - 29.3% (9) 0.0% (0) - - 34.0% 30.7%
RP MLB Percentile 81 (1) 97 (19) - 65 (41) - 51 (13) 0 (0) - - 81.2% 63.0%
RP MLB AVG 26.6% (6) 28.1% (3) 28.0% (4) 30.5% (7) 28.6% (6) 28.2% (4) 22.3% (5) 25.1% (7) - (-) 28.0% 28.6%
Career 33.1% (137) 50.0% (1) - 32.9% (89) - 29.3% (9) 0.0% (0) - - 33.1% 32.4%

Mason Montgomery Batted Ball › Contact

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Year Team GB% LD% FB% PU% SS% Pull% Cent% Oppo% Foul Str% PC% Fl&B% Solid% Brl% ICR
2024 TB 60.0% 26.7% 13.3% 0.0% 53.3% 40.0% 46.7% 13.3% 18.4% 40.1% 46.7% 0.0% 13.3% 60.0%
2025 TB 45.3% 24.8% 23.1% 6.8% 35.9% 34.7% 34.7% 30.5% 19.1% 55.6% 33.3% 1.7% 9.4% 44.1%
2026 PIT 42.3% 23.1% 23.1% 11.5% 26.9% 38.5% 38.5% 23.1% 22.1% 53.8% 34.6% 3.8% 7.7% 46.2%
RP MLB Percentile 41 29 52 42 70 20 80 48 92 11 7 57 39 10
RP MLB AVG 43.9% 21.8% 24.4% 10.0% 35.0% 42.1% 33.2% 24.7% 17.4% 61.6% 24.6% 5.8% 8.1% 38.3%
Career 46.2% 24.7% 22.2% 7.0% 36.1% 35.8% 36.5% 27.7% 19.5% 53.8% 34.8% 1.9% 9.5% 45.9%

Mason Montgomery Batted Ball › Outcomes

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Year Team AVG wOBA BABIP BACON xAVG xwOBA xBABIP xwoBACON EV FB EV LA HR/FB ICR IPA%
2024 TB .188 .266 .400 .400 .180 .290 .325 .485 91.8 101.5 5.7 0.0% 60.0% 24.3%
2025 TB .277 .354 .391 .422 .237 .319 .330 .395 87.6 84.3 11.0 22.2% 44.1% 24.9%
2026 PIT .229 .298 .400 .423 .229 .311 .389 .482 89.8 90.8 14.2 16.7% 46.2% 22.2%
RP MLB Percentile 49 53 9 11 51 53 6 10 35 50 49 45 10 57
RP MLB AVG .249 .332 .301 .332 .243 .333 .289 .377 88.4 89.7 13.2 18.9% 38.3% 25.1%
Career .257 .339 .393 .420 .228 .319 .339 .425 88.4 86.4 11.1 20.0% 45.9% 24.3%

Mason Montgomery Approach › Plate Discipline

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Year Team Zone% Str% Swing% O-Sw% Whiff% Foul Str% Con% Z-Con% O-Con% CS% SwStr% CSW% BIP% PLUS% IPR Str-ICR
2024 TB 44.3% 63.9% 52.5% 31.8% 47.0% 18.4% 53.0% 60.0% 39.3% 11.4% 24.7% 36.1% 9.5% 60.1% 0.81 52.5%
2025 TB 47.7% 65.1% 51.1% 34.1% 35.8% 19.1% 64.2% 72.3% 49.0% 14.0% 18.3% 32.2% 13.7% 59.4% 0.67 53.0%
2026 PIT 45.5% 66.7% 51.8% 38.8% 34.8% 22.1% 65.2% 80.9% 42.6% 14.9% 18.0% 32.9% 11.7% 61.7% 0.76 55.9%
RP MLB Percentile 58 75 82 84 84 92 84 66 86 34 89 83 3 76 96 79
RP MLB AVG 44.1% 62.8% 46.2% 30.5% 25.7% 17.4% 74.3% 83.7% 58.5% 16.6% 12.0% 28.6% 16.9% 57.3% 0.49 49.8%
Career 46.9% 65.2% 51.4% 34.7% 37.0% 19.5% 63.0% 72.1% 46.5% 13.8% 19.0% 32.8% 12.8% 59.9% 0.71 53.4%

Mason Montgomery Approach › Locations

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Year Team Zone% aLoc% x-mLoc% gLoc% hiLoc% y-mLoc% loLoc% iLoc% oLoc% mmLoc%
2024 TB 44.3% 17.7% 34.8% 47.5% 48.1% 17.1% 34.8% 34.2% 31.0% 6.3%
2025 TB 47.7% 16.1% 32.2% 51.7% 41.5% 23.0% 35.5% 39.5% 28.3% 8.0%
2026 PIT 45.5% 22.5% 32.4% 45.0% 40.1% 21.6% 38.3% 36.5% 31.1% 8.6%
RP MLB Percentile 58 9 12 79 64 62 44 85 5 78
RP MLB AVG 44.1% 34.8% 26.5% 38.7% 36.3% 22.8% 40.9% 30.4% 43.2% 6.3%
Career 46.9% 17.4% 32.6% 50.0% 42.1% 22.0% 35.9% 38.3% 29.2% 7.9%

Mason Montgomery Approach › Counts

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Year Team Early% Behind% 2-Str% Early BIP% F-Str% TF-Str% ECS% 2-Str O-Sw% PAR%
2024 TB 51.9% 13.3% 35.4% 4.9% 54.1% 48.6% 18.3% 28.6% 30.4%
2025 TB 56.6% 10.4% 33.1% 11.7% 67.5% 57.9% 18.3% 23.2% 22.2%
2026 PIT 57.7% 10.4% 32.0% 11.7% 66.7% 57.4% 17.2% 31.0% 31.0%
RP MLB Percentile 33 71 75 20 77 85 26 70 92
RP MLB AVG 58.5% 13.1% 29.0% 13.8% 59.4% 49.5% 21.1% 26.4% 19.7%
Career 56.2% 10.7% 33.2% 10.9% 65.7% 56.7% 18.1% 25.3% 24.8%

Mason Montgomery PLV

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Year Team P PLV QP% AP% BP% Q-BP% MTK% HP HL PLA
2024 TB 158 5.29 55.1% 13.9% 31.0% 24.1% 3.8% 0.7 +1 2.40
2025 TB 859 5.06 51.1% 14.8% 34.1% 17.0% 3.4% 19.4 +21 3.43
2026 PIT 222 5.27 53.6% 16.7% 29.7% 23.9% 1.8% 1.0 +1 2.65
RP MLB Percentile 73 90 89 54 87 87 87 42 42 75
RP MLB AVG 180 4.97 46.1% 17.9% 36.1% 10.0% 4.2% 1.5 +1 3.58
Career 1,239 5.13 52.1% 15.0% 32.9% 19.1% 3.1% 21.1 +23 3.15
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