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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 25.2 4.56 1.40 30.4% 12.5%
156th 1
Sv
136th 23.0
IP
211th 4.43
ERA
202nd 1.39
WHIP
33rd 22.2%
K%
262nd 10.4%
BB%
FB MPH SwStr% CSW% Str-ICR MTK% PLV PLA
98.2 14.8% 29.2% 52.4% 2.9% 5.14 2.97
20th 94.3
FB MPH
57th 12.0%
SwStr%
138th 28.5%
CSW%
114th 50.5%
Str-ICR
62nd 4.5%
MTK%
35th 4.93
PLV
75th 3.60
PLA
Saves List
Rank
43rd
Holds List
Rank
25th
Saves+Holds List
Rank
46th

Articles

6/10/2026Relief Pitcher Streamer Rankings Fantasy Baseball: 6/10Rick Graham

6/9/2026Fantasy Reliever Rankings: Closers, Holds & SOLDs - 6/9Rick Graham

6/9/2026Relief Pitcher Streamer Rankings Fantasy Baseball: 6/9Rick Graham

6/8/2026Relief Pitcher Streamer Rankings Fantasy Baseball: 6/8Rick Graham

6/7/2026Fantasy Baseball Relief Pitcher Roundup: 6/6Rick 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 26 4 25.2 1-1 0 7 4.56 1.40 4.63 3.63 3.27 2.97 30.4% 12.5% 7.7 1.05 .311 23.1% 69.2% 40.6% 51.6% 14.8% 29.2% 0.58 5.14
RP MLB Percentile 72 92 60 38-33 0 83 40 41 33 62 87 77 90 24 56 41 36 25 38 29 81 82 59 77 89
RP MLB AVG 18 1 23.0 1-1 1 3 4.43 1.39 4.30 4.30 4.34 3.60 22.2% 10.4% 8.5 1.08 .292 17.6% 72.0% 37.4% 43.7% 12.0% 28.5% 0.49 4.93
Career 92 4 81.1 2-4 1 20 4.87 1.51 4.20 3.50 3.30 3.17 31.8% 12.8% 8.5 1.00 .366 21.4% 68.2% 44.2% 48.5% 17.9% 31.7% 0.66 5.11

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 26 4 25.2 1-1 0 0 7 452 289 163 112 22 14 5 0 3 34 14 0 2
RP MLB Percentile 72 92 60 38-33 0 0 83 68 69 32 65 37 39 26 27 25 84 19 63 12
RP MLB AVG 18 1 23.0 1-1 0 1 3 397 252 146 102 21 14 4 0 3 23 10 1 1
Career 92 4 81.1 2-4 0 1 20 1,469 949 520 358 77 50 18 0 9 114 46 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 30.4% 12.5% .224 .367 .688 .312 .311 .344 .245 .340 .333 .442 87.9 91.7 9.2 4.63
RP MLB Percentile 90 24 61 56 53 50 36 33 41 33 11 11 49 30 74 33
RP MLB AVG 22.2% 10.4% .242 .390 .720 .320 .292 .322 .237 .322 .283 .364 87.9 89.5 13.3 4.30
Career 31.8% 12.8% .251 .397 .745 .335 .366 .395 .234 .326 .330 .422 88.0 87.4 10.0 4.20

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 64.6% (98.2) 0.4% (98.9) - 13.7% (89.4) - 16.6% (86.8) 4.6% (89.9) - - 65.0% 35.0%
RP MLB Percentile 95 (93) 0 (97) - 22 (91) - 59 (96) 10 (85) - - 92.3% 7.4%
RP MLB AVG 37.6% (94.3) 25.8% (93.9) 21.7% (89.3) 26.0% (85.4) 22.0% (82.5) 17.5% (79.8) 18.4% (86.2) 19.8% (86.5) 31.8% (68.1) 47.7% 52.2%
Career 66.4% (98.4) 0.1% (98.9) - 26.9% (89.6) - 5.1% (86.8) 1.4% (89.9) - - 66.5% 33.4%

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 30.5% (44) 50.0% (1) - 25.8% (10) - 28.0% (11) 23.8% (1) - - 30.6% 26.6%
RP MLB Percentile 72 (3) 98 (14) - 29 (39) - 47 (19) 60 (77) - - 71.5% 35.9%
RP MLB AVG 27.0% (14) 27.4% (6) 27.0% (7) 29.3% (12) 28.2% (11) 26.9% (7) 21.8% (10) 24.5% (13) 23.3% (6) 27.9% 28.6%
Career 32.2% (157) 50.0% (1) - 31.6% (93) - 28.0% (11) 23.8% (1) - - 32.2% 30.8%

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 51.6% 20.3% 20.3% 7.8% 26.6% 46.9% 31.3% 21.9% 20.6% 59.4% 28.1% 4.7% 7.8% 40.6%
RP MLB Percentile 81 60 29 32 89 78 35 29 87 30 27 58 38 29
RP MLB AVG 43.7% 21.7% 24.2% 10.4% 34.6% 41.3% 33.6% 25.2% 17.7% 62.3% 24.6% 5.9% 7.2% 37.4%
Career 48.5% 23.5% 21.4% 6.6% 34.2% 39.1% 34.5% 26.4% 19.5% 55.6% 32.7% 2.6% 9.2% 44.2%

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 .224 .312 .311 .344 .245 .340 .333 .442 87.9 91.7 9.2 23.1% 40.6% 23.2%
RP MLB Percentile 61 50 36 33 41 33 11 11 49 30 74 25 29 60
RP MLB AVG .242 .320 .292 .322 .237 .322 .283 .364 87.9 89.5 13.3 17.6% 37.4% 24.7%
Career .251 .335 .366 .395 .234 .326 .330 .422 88.0 87.4 10.0 21.4% 44.2% 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 44.9% 63.9% 49.6% 34.1% 29.9% 20.6% 70.1% 82.7% 49.4% 14.4% 14.8% 29.2% 14.2% 59.1% 0.58 52.4%
RP MLB Percentile 55 56 75 70 78 87 78 62 83 19 82 59 13 65 77 67
RP MLB AVG 44.3% 63.2% 46.6% 31.0% 25.6% 17.7% 74.4% 84.0% 58.4% 16.5% 12.0% 28.5% 17.0% 57.7% 0.49 50.5%
Career 46.5% 64.6% 50.8% 33.8% 35.3% 19.5% 64.7% 73.9% 48.1% 13.8% 17.9% 31.7% 13.4% 59.4% 0.66 52.8%

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 44.9% 21.7% 33.2% 45.1% 39.4% 24.1% 36.5% 35.8% 31.0% 9.3%
RP MLB Percentile 55 3 5 85 64 33 27 86 2 95
RP MLB AVG 44.3% 34.7% 26.8% 38.5% 36.3% 22.8% 40.9% 30.1% 43.0% 6.5%
Career 46.5% 18.0% 32.8% 49.3% 41.6% 22.7% 35.8% 37.8% 29.4% 8.2%

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 57.5% 12.2% 30.3% 13.5% 59.8% 50.0% 16.9% 25.5% 24.8%
RP MLB Percentile 35 50 59 36 44 50 12 42 87
RP MLB AVG 58.5% 12.6% 29.5% 14.2% 60.2% 49.6% 21.2% 26.3% 19.2%
Career 56.4% 11.2% 32.5% 11.6% 63.7% 54.5% 17.9% 24.5% 23.9%

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 452 5.14 49.6% 16.8% 33.6% 15.9% 2.9% 2.7 +1 2.97
RP MLB Percentile 68 89 82 48 78 78 80 30 36 77
RP MLB AVG 397 4.93 46.0% 17.0% 37.0% 9.0% 4.5% 0.5 +0 3.60
Career 1,469 5.11 51.1% 15.3% 33.6% 17.4% 3.3% 22.8 +24 3.17
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