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Mason Montgomery

#48 - Relief Pitcher

Tampa Bay Rays

Bats / Throws Left / Left
Date of Birth 6/17/2000 (24)
Height, Weight 6'2", 205 lb
Hometown Austin, TX

2025 Season Stats

MLB Rank MLB Average
Sv IP ERA WHIP K% BB%
1 15.1 4.11 1.11 31.7% 7.9%
100th 1
Sv
141st 12
IP
193rd 4.61
ERA
119th 1.41
WHIP
37th 22.5%
K%
131st 10.0%
BB%
FB MPH SwStr% CSW% Str-ICR MTK% PLV PLA
98.9 20.0% 34.9% 60.9% 4.3% 5.59 1.35
7th 93.8
FB MPH
9th 12.1%
SwStr%
22nd 28.5%
CSW%
7th 50.0%
Str-ICR
115th 5.6%
MTK%
2nd 4.98
PLV
1st -
PLA
Holds List
Rank
11th
Saves+Holds List
Rank
32nd

Articles

5/14/2025Fantasy Baseball Waiver Wire Picks: 5/14Ryan Amore

5/13/2025Closing Time 5/13: Ranking the Top 40 Closers Every TuesdayRick Graham

5/11/2025Waiver Relief: 5/11/2025Alex Kamberis

5/9/2025RP Ranks 5/9: The Top 100 Relievers for Save+Hold LeaguesRick Graham

5/6/2025Closing Time 5/6: Ranking the Top 40 Closers Every TuesdayRick Graham

See More Articles
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Mason Montgomery Overview

Hide 2025 MLB Percentile | Hide 2025 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 2.39 45.9% 13.5% 5.6 0.00 .400 0.0% 81.8% 60.0% 60.0% 24.7% 36.1% 0.81 5.32
2025 TB 18 0 15.1 0-1 1 6 4.11 1.11 3.53 4.89 2.80 1.35 31.7% 7.9% 7.0 2.35 .242 44.4% 78.9% 34.2% 44.7% 20.0% 34.9% 0.81 5.59
RP MLB Percentile 73 0 56 0-12 0 88 45 65 57 32 90 99 89 61 61 11 68 5 66 64 55 97 93 98 99
RP MLB AVG 11 0 12.0 1-1 1 2 4.61 1.41 4.55 4.47 4.32 3.55 22.5% 10.0% 8.7 1.10 .293 17.5% 71.9% 38.7% 43.9% 12.1% 28.5% 0.49 4.98
Career 27 0 25.0 0-1 1 9 3.24 1.12 - - - 1.75 37.0% 10.0% 6.5 1.44 .292 36.4% 80.4% 41.5% 49.1% 21.9% 35.4% 0.81 5.48

Mason Montgomery Repertoire

2024 2025 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 18 0 15.1 0-1 0 1 6 235 169 66 63 12 8 0 0 4 20 5 0 0
RP MLB Percentile 73 0 56 0-12 0 0 88 54 64 61 57 38 38 81 17 1 84 41 45 39
RP MLB AVG 11 0 12.0 1-1 0 1 2 216 137 78 55 12 8 2 0 1 13 5 1 1
Career 27 0 25.0 0-1 0 1 9 393 270 123 100 18 11 3 0 4 37 10 0 0

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 31.7% 7.9% .211 .421 .695 .306 .242 .324 .207 .298 .261 .394 86.1 93.9 10.8 3.53
RP MLB Percentile 89 61 62 38 47 49 68 40 67 57 58 31 81 20 63 57
RP MLB AVG 22.5% 10.0% .243 .392 .718 .318 .293 .322 .239 .321 .282 .366 88.7 90.4 13.0 4.55
Career 37.0% 10.0% .202 .371 .654 .292 .292 .346 .198 .296 .279 .422 87.7 95.2 9.4 -

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 54.9% (98.9) - - 45.1% (89.7) - - - - - 54.9% 45.1%
RP MLB Percentile 82 (98) - - 83 (95) - - - - - 72.4% 27.3%
RP MLB AVG 37.4% (93.8) 28.4% (93.5) 22.9% (89.5) 28.9% (85.4) 23.5% (82.0) 20.1% (79.4) 19.0% (85.8) 20.8% (86.7) - (-) 47.8% 52.1%
Career 62.1% (98.1) - - 37.9% (89.4) - - - - - 62.1% 37.9%

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 31.0% (18) - - 39.6% (29) - - - - - 31.0% 39.6%
RP MLB Percentile 71 (9) - - 84 (4) - - - - - 67.1% 96.0%
RP MLB AVG 26.4% (8) 28.3% (4) 25.8% (5) 29.8% (10) 29.0% (7) 28.2% (5) 22.4% (6) 25.3% (9) - (-) 28.0% 28.5%
Career 33.2% (43) - - 38.9% (43) - - - - - 33.2% 38.9%

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 44.7% 21.1% 23.7% 10.5% 34.2% 39.5% 21.1% 39.5% 20.9% 65.8% 21.1% 0.0% 13.2% 34.2%
RP MLB Percentile 55 49 39 62 50 48 9 91 82 65 57 83 14 64
RP MLB AVG 43.9% 21.8% 24.2% 10.1% 35.4% 40.5% 33.8% 25.7% 17.7% 61.1% 24.0% 6.8% 8.1% 38.7%
Career 49.1% 22.6% 20.8% 7.5% 39.6% 39.6% 28.3% 32.1% 19.8% 58.5% 28.3% 0.0% 13.2% 41.5%

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 .211 .306 .242 .324 .207 .298 .261 .394 86.1 93.9 10.8 44.4% 34.2% 20.6%
RP MLB Percentile 62 49 68 40 67 57 58 31 81 20 63 5 64 74
RP MLB AVG .243 .318 .293 .322 .239 .321 .282 .366 88.7 90.4 13.0 17.5% 38.7% 25.7%
Career .202 .292 .292 .346 .198 .296 .279 .422 87.7 95.2 9.4 36.4% 41.5% 22.0%

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 52.3% 71.9% 57.0% 48.2% 35.1% 20.9% 64.9% 72.5% 53.7% 14.9% 20.0% 34.9% 16.2% 66.8% 0.81 60.9%
RP MLB Percentile 87 97 97 99 91 82 91 94 63 34 97 93 38 97 98 98
RP MLB AVG 46.5% 63.2% 46.8% 29.2% 25.7% 17.7% 74.3% 83.2% 57.0% 16.4% 12.1% 28.5% 17.0% 57.7% 0.49 50.0%
Career 49.1% 68.7% 55.2% 41.0% 39.6% 19.8% 60.4% 67.4% 48.8% 13.5% 21.9% 35.4% 13.5% 64.1% 0.81 57.5%

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 52.3% 13.2% 37.9% 48.9% 30.2% 24.7% 45.1% 31.9% 30.2% 9.4%
RP MLB Percentile 87 0 1 83 48 51 53 68 1 90
RP MLB AVG 46.5% 34.3% 25.9% 39.8% 30.8% 24.9% 44.3% 29.7% 44.4% 6.7%
Career 49.1% 15.0% 36.6% 48.3% 37.4% 21.6% 41.0% 32.8% 30.5% 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 60.4% 5.5% 34.0% 14.8% 74.6% 63.5% 19.0% 28.8% 25.0%
RP MLB Percentile 70 96 80 58 93 93 33 74 84
RP MLB AVG 58.4% 12.3% 29.9% 14.2% 60.4% 49.9% 21.2% 23.9% 19.1%
Career 57.0% 8.7% 34.6% 11.2% 67.0% 58.0% 18.8% 28.7% 27.2%

Mason Montgomery PLV

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Year Team P PLV QP% AP% BP% Q-BP% MTK% HP HL PLA
2024 TB 158 5.32 53.8% 16.5% 29.7% 24.1% 3.8% 0.7 +1 2.39
2025 TB 235 5.59 61.7% 14.5% 23.8% 37.9% 4.3% 6.7 +5 1.35
RP MLB Percentile 54 99 100 18 98 98 66 8 11 99
RP MLB AVG 216 4.98 46.2% 17.7% 36.1% 10.1% 5.6% - +1 3.55
Career 393 5.48 58.5% 15.3% 26.2% 32.3% 4.1% 7.4 +6 1.75
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