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Mason Montgomery

#46 - Relief Pitcher

Pittsburgh Pirates

Bats / Throws Left / Left
Date of Birth 6/17/2000 (26)
Height, Weight 6'2", 205 lb
Hometown Austin, TX

2026 Season Stats

MLB Rank MLB Average
Sv IP ERA WHIP K% BB%
7 55.2 3.07 1.06 39.2% 9.7%
36th 3
Sv
105th 45.0
IP
83rd 4.21
ERA
52nd 1.34
WHIP
3rd 22.6%
K%
188th 9.8%
BB%
FB MPH SwStr% CSW% Str-ICR MTK% PLV PLA
98.4 16.3% 32.5% 56.4% 3.1% 5.14 2.89
22nd 94.6
FB MPH
27th 12.2%
SwStr%
26th 28.5%
CSW%
25th 51.1%
Str-ICR
60th 4.6%
MTK%
25th 4.94
PLV
66th 3.54
PLA
Saves List
Rank
13th
Saves+Holds List
Rank
12th

Articles

8/30/2026Fantasy Baseball Relief Pitcher Roundup: 8/29Rick Graham

8/28/2026Waiver Relief: Week 23Alex Kamberis

8/26/2026Fantasy Baseball Relief Pitcher Roundup: 8/25Rick Graham

8/25/2026Fantasy Reliever Rankings: Closers, Holds & SOLDs - 8/25Rick Graham

8/25/2026Fantasy Baseball Relief Pitcher Roundup: 8/24Rick 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 57 5 55.2 5-3 7 9 3.07 1.06 2.89 2.23 2.00 2.89 39.2% 9.7% 6.0 0.81 .288 22.7% 75.0% 37.9% 55.2% 16.3% 32.5% 0.72 5.14
RP MLB Percentile 86 87 69 81-24 88 71 76 84 89 97 99 81 99 45 86 64 44 23 56 33 90 92 91 97 92
RP MLB AVG 36 2 45.0 3-2 3 6 4.21 1.34 4.19 4.21 4.26 3.54 22.6% 9.8% 8.3 1.12 .289 17.4% 72.7% 36.9% 43.7% 12.2% 28.5% 0.50 4.94
Career 123 5 111.1 6-6 8 22 4.04 1.31 3.45 2.84 2.66 3.07 35.7% 11.4% 7.4 0.89 .343 21.6% 70.7% 42.2% 50.8% 17.8% 32.7% 0.71 5.12

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 57 5 55.2 5-3 0 7 9 956 627 329 227 37 25 7 0 5 89 22 0 2
RP MLB Percentile 86 87 69 81-24 0 88 71 75 76 29 68 49 45 40 45 38 96 25 82 28
RP MLB AVG 36 2 45.0 3-2 0 3 6 763 488 276 196 41 27 8 1 5 44 18 2 2
Career 123 5 111.1 6-6 0 8 22 1,973 1,287 686 473 92 61 20 0 11 169 54 1 3

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 39.2% 9.7% .181 .289 .549 .246 .288 .319 .192 .262 .301 .387 86.8 87.0 8.0 2.89
RP MLB Percentile 99 45 91 87 89 90 44 43 89 89 21 23 71 79 83 89
RP MLB AVG 22.6% 9.8% .240 .388 .711 .314 .289 .319 .235 .315 .280 .358 87.6 89.2 13.3 4.19
Career 35.7% 11.4% .223 .351 .663 .297 .343 .372 .210 .290 .316 .399 87.5 86.1 9.3 3.45

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 TB72.8% (97.3)--27.2% (88.6)----- 72.8% 27.2%
2025 TB66.1% (98.7)--33.8% (89.8)----- 66.1% 33.8%
2026 PIT51.3% (98.4)17.0% (99.0)-15.4% (89.6)-14.0% (86.7)2.4% (90.0)-- 68.2% 31.8%
RP MLB Percentile 81 (93) 34 (97) - 24 (94) - 52 (96) 5 (86) - - 93.7% 6.0%
RP MLB AVG 38.5% (94.6) 26.4% (94.0) 20.1% (89.5) 25.7% (85.8) 21.3% (82.4) 15.6% (80.3) 16.9% (86.2) 17.9% (86.6) 38.1% (65.2) 48.3% 51.5%
Career59.5% (98.5)8.2% (99.0)-24.3% (89.6)-6.8% (86.7)1.2% (90.0)-- 67.7% 32.3%

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 TB35.7% (25)--37.2% (14)----- 35.7% 37.2%
2025 TB32.4% (88)--32.1% (69)----- 32.4% 32.1%
2026 PIT32.4% (77)41.4% (27)-27.9% (28)-29.1% (23)21.7% (1)-- 34.7% 28.0%
RP MLB Percentile 87 (3) 97 (10) - 38 (28) - 53 (18) 49 (77) - - 95.4% 43.1%
RP MLB AVG 26.9% (27) 27.3% (11) 26.4% (13) 29.8% (23) 28.4% (17) 27.2% (12) 21.5% (16) 23.0% (18) 22.2% (7) 27.8% 28.8%
Career32.7% (190)41.4% (27)-31.3% (111)-29.1% (23)21.7% (1)-- 33.8% 30.5%

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 55.2% 19.0% 19.0% 6.9% 25.9% 43.1% 31.0% 25.9% 20.9% 62.0% 25.9% 5.2% 6.9% 37.9%
RP MLB Percentile 90 67 17 16 93 59 34 54 88 34 31 54 40 33
RP MLB AVG 43.7% 21.6% 24.5% 10.3% 34.6% 41.0% 33.7% 25.4% 18.2% 62.8% 24.5% 5.9% 6.8% 36.9%
Career 50.8% 22.2% 20.6% 6.5% 32.3% 39.0% 33.7% 27.3% 19.9% 57.7% 30.6% 3.2% 8.5% 42.2%

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 .181 .246 .288 .319 .192 .262 .301 .387 86.8 87.0 8.0 22.7% 37.9% 19.4%
RP MLB Percentile 91 90 44 43 89 89 21 23 71 79 83 23 33 87
RP MLB AVG .240 .314 .289 .319 .235 .315 .280 .358 87.6 89.2 13.3 17.4% 36.9% 24.5%
Career .223 .297 .343 .372 .210 .290 .316 .399 87.5 86.1 9.3 21.6% 42.2% 22.2%

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 45.2% 65.6% 49.4% 35.7% 33.1% 20.9% 66.9% 78.2% 49.7% 16.2% 16.3% 32.5% 12.1% 61.7% 0.72 56.4%
RP MLB Percentile 59 72 70 83 93 88 93 89 88 47 92 91 2 88 97 93
RP MLB AVG 44.4% 63.8% 47.4% 31.8% 25.6% 18.2% 74.4% 83.9% 58.6% 16.3% 12.2% 28.5% 17.1% 58.4% 0.50 51.1%
Career 46.2% 65.2% 50.4% 34.7% 35.4% 19.9% 64.6% 73.9% 48.6% 14.9% 17.8% 32.7% 12.6% 60.6% 0.71 54.6%

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 45.2% 22.7% 33.1% 44.2% 41.5% 23.5% 34.9% 33.4% 33.6% 8.4%
RP MLB Percentile 59 2 3 86 75 36 21 80 3 93
RP MLB AVG 44.4% 34.5% 27.0% 38.5% 36.4% 22.9% 40.7% 29.8% 43.2% 6.6%
Career 46.2% 19.4% 32.8% 47.8% 42.0% 22.8% 35.2% 36.1% 31.1% 8.1%

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 56.1% 12.0% 32.7% 10.3% 61.3% 52.9% 20.0% 29.4% 28.4%
RP MLB Percentile 13 49 86 5 50 71 33 73 98
RP MLB AVG 58.5% 12.2% 29.9% 14.5% 60.9% 50.1% 21.1% 26.8% 19.2%
Career 56.0% 11.4% 33.1% 10.5% 63.5% 54.8% 19.1% 26.6% 25.9%

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 956 5.14 50.2% 15.7% 34.1% 16.1% 3.1% -8.2 -10 2.89
RP MLB Percentile 75 92 92 19 77 77 82 86 89 81
RP MLB AVG 763 4.94 46.0% 17.3% 36.7% 9.3% 4.6% 0.6 0 3.54
Career 1,973 5.12 51.0% 15.2% 33.9% 17.1% 3.3% 11.9 +13 3.07
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