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Mason Barnett

#63 - Relief Pitcher

Athletics

Bats / Throws Right / Right
Date of Birth 11/7/2000 (25)
Height, Weight 6'0", 218 lb
Hometown Kennesaw, GA

2026 Season Stats

MLB Rank MLB Average
Sv IP ERA WHIP K% BB%
2 29.2 4.85 1.31 23.0% 11.1%
69th 2
Sv
253rd 37.0
IP
233rd 4.26
ERA
199th 1.35
WHIP
184th 22.4%
K%
273rd 9.9%
BB%
FB MPH SwStr% CSW% Str-ICR MTK% PLV PLA
95.1 10.2% 28.0% 49.7% 6.5% 4.89 3.81
147th 94.7
FB MPH
289th 12.1%
SwStr%
231st 28.5%
CSW%
240th 50.9%
Str-ICR
264th 4.7%
MTK%
198th 4.93
PLV
244th 3.53
PLA

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Mason Barnett 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
2025 ATH 5 5 22.1 1-1 0 0 6.85 1.66 4.59 4.90 5.46 3.84 17.3% 10.6% 10.5 1.21 .324 14.3% 59.2% 35.1% 36.5% 9.7% 25.1% 0.38 5.00
2026 ATH 15 1 29.2 1-1 2 0 4.85 1.31 4.24 4.89 4.16 3.81 23.0% 11.1% 7.6 1.52 .260 27.8% 72.7% 37.8% 38.8% 10.2% 28.0% 0.48 4.89
RP MLB Percentile 16 0 27 23-55 71 0 33 40 21 14 48 30 46 22 58 14 77 4 70 24 17 16 33 38 41
RP MLB AVG 29 2 37.0 2-2 2 5 4.26 1.35 4.26 4.29 4.33 3.53 22.4% 9.9% 8.3 1.14 .289 18.0% 72.5% 37.0% 43.7% 12.1% 28.5% 0.50 4.93
Career 20 6 52.0 2-2 2 0 5.71 1.46 4.39 4.87 4.70 3.82 20.4% 10.9% 8.8 1.38 .291 20.5% 65.9% 36.5% 37.7% 10.0% 26.6% 0.43 4.94

Mason Barnett Repertoire

2025 2026 All
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Mason Barnett Game Log

Mason Barnett Standard

Hide 2026 MLB Percentile | Hide 2026 MLB Average
Year Team G GS IP W-L QS Sv Hld P Strikes Balls TBF H 1B 2B 3B HR K BB HB WP
2025 ATH 5 5 22.1 1-1 0 0 0 431 264 167 104 26 17 6 0 3 18 11 1 2
2026 ATH 15 1 29.2 1-1 0 2 0 511 316 195 126 25 14 5 1 5 29 14 1 0
RP MLB Percentile 16 0 27 23-55 0 71 0 29 29 68 27 72 82 60 14 29 28 51 77 66
RP MLB AVG 29 2 37.0 2-2 0 2 5 625 399 227 161 34 23 6 1 5 36 15 2 1
Career 20 6 52.0 2-2 0 2 0 942 580 362 230 51 31 11 1 8 47 25 2 2

Mason Barnett Advanced

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Year Team K% BB% AVG SLG OPS wOBA BABIP BACON xAVG xwOBA xBABIP xwoBACON EV FB EV LA xERA
2025 ATH 17.3% 10.6% .286 .451 .816 .355 .324 .351 .247 .335 .267 .358 88.5 88.4 16.8 4.59
2026 ATH 23.0% 11.1% .225 .423 .740 .323 .260 .305 .239 .324 .290 .376 89.1 87.4 16.8 4.24
RP MLB Percentile 46 22 61 24 30 34 77 64 27 21 23 17 28 68 20 21
RP MLB AVG 22.4% 9.9% .241 .392 .717 .316 .289 .320 .237 .318 .281 .361 87.8 89.3 13.2 4.26
Career 20.4% 10.9% .252 .436 .775 .339 .291 .327 .243 .330 .279 .368 88.8 87.9 16.8 4.39

Mason Barnett 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%
2025 ATH53.4% (94.3)---21.4% (84.8)15.1% (78.5)10.2% (85.4)-- 53.4% 46.6%
2026 ATH43.6% (95.1)--23.9% (87.4)15.9% (83.5)11.9% (79.3)4.7% (85.9)-- 43.6% 56.4%
RP MLB Percentile 63 (56) - - 50 (67) 40 (63) 42 (32) 13 (39) - - 28.8% 71.5%
RP MLB AVG 37.8% (94.7) 26.1% (93.9) 20.5% (89.4) 25.4% (85.5) 21.3% (82.5) 16.4% (79.9) 17.2% (86.2) 18.3% (86.4) 32.3% (68.3) 48.3% 51.5%
Career48.1% (94.7)--13.0% (87.4)18.4% (84.2)13.4% (78.9)7.2% (85.6)-- 48.1% 51.9%

Mason Barnett 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%
2025 ATH21.3% (18)---29.3% (14)32.3% (7)25.0% (3)-- 21.3% 29.4%
2026 ATH28.3% (17)--32.8% (19)28.4% (10)19.7% (3)20.8% (3)-- 28.3% 27.8%
RP MLB Percentile 57 (51) - - 70 (33) 51 (47) 19 (57) 46 (64) - - 24.5% 47.6%
RP MLB AVG 27.1% (23) 27.2% (9) 26.9% (11) 29.1% (18) 28.0% (15) 27.5% (10) 21.6% (14) 23.4% (16) 22.0% (8) 27.9% 28.7%
Career24.7% (35)--32.8% (19)28.9% (24)26.2% (10)23.5% (6)-- 24.7% 28.4%

Mason Barnett Batted Ball › Contact

Hide 2026 MLB Percentile | Hide 2026 MLB Average
Year Team GB% LD% FB% PU% SS% Pull% Cent% Oppo% Foul Str% PC% Fl&B% Solid% Brl% ICR%
2025 ATH 36.5% 23.0% 28.4% 12.2% 37.8% 43.2% 33.8% 23.0% 19.0% 64.9% 17.6% 9.5% 8.1% 35.1%
2026 ATH 38.8% 25.0% 22.5% 13.8% 32.5% 34.1% 34.1% 31.7% 17.8% 61.3% 26.3% 5.0% 7.5% 37.8%
RP MLB Percentile 17 10 36 84 46 18 68 77 64 22 31 43 24 24
RP MLB AVG 43.7% 21.7% 24.4% 10.2% 34.7% 40.9% 34.0% 25.1% 18.0% 62.8% 24.4% 5.8% 7.1% 37.0%
Career 37.7% 24.0% 25.3% 13.0% 35.1% 38.5% 34.0% 27.6% 18.4% 63.0% 22.1% 7.1% 7.8% 36.5%

Mason Barnett Batted Ball › Outcomes

Hide 2026 MLB Percentile | Hide 2026 MLB Average
Year Team AVG wOBA BABIP BACON xAVG xwOBA xBABIP xwoBACON EV FB EV LA HR/FB ICR% IPA%
2025 ATH .286 .355 .324 .351 .247 .335 .267 .358 88.5 88.4 16.8 14.3% 35.1% 25.0%
2026 ATH .225 .323 .260 .305 .239 .324 .290 .376 89.1 87.4 16.8 27.8% 37.8% 24.6%
RP MLB Percentile 61 34 77 64 27 21 23 17 28 68 20 4 24 30
RP MLB AVG .241 .316 .289 .320 .237 .318 .281 .361 87.8 89.3 13.2 18.0% 37.0% 24.6%
Career .252 .339 .291 .327 .243 .330 .279 .368 88.8 87.9 16.8 20.5% 36.5% 24.8%

Mason Barnett 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
2025 ATH 46.9% 61.3% 45.9% 28.4% 21.2% 19.0% 78.8% 88.7% 58.5% 15.3% 9.7% 25.1% 17.2% 55.2% 0.38 49.2%
2026 ATH 46.4% 61.8% 44.0% 29.2% 23.1% 17.8% 76.9% 89.0% 55.0% 17.8% 10.2% 28.0% 16.0% 56.9% 0.48 49.7%
RP MLB Percentile 72 26 19 36 23 64 23 4 64 72 16 33 30 35 38 30
RP MLB AVG 44.5% 63.6% 47.3% 31.5% 25.6% 18.0% 74.4% 83.7% 58.6% 16.3% 12.1% 28.5% 17.1% 58.2% 0.50 50.9%
Career 46.6% 61.6% 44.9% 28.8% 22.2% 18.4% 77.8% 88.8% 56.6% 16.7% 10.0% 26.6% 16.6% 56.2% 0.43 49.5%

Mason Barnett Approach › Locations

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Year Team Zone% aLoc% x-mLoc% gLoc% hiLoc% y-mLoc% loLoc% iLoc% oLoc% mmLoc%
2025 ATH 46.9% 29.5% 29.0% 41.5% 38.5% 21.8% 39.7% 27.1% 43.9% 7.0%
2026 ATH 46.4% 30.5% 26.4% 43.1% 33.5% 18.6% 47.9% 29.0% 44.6% 5.1%
RP MLB Percentile 72 21 55 81 31 96 89 47 54 2
RP MLB AVG 44.5% 34.7% 26.9% 38.4% 36.2% 22.9% 40.8% 29.9% 43.2% 6.6%
Career 46.6% 30.0% 27.6% 42.4% 35.8% 20.1% 44.2% 28.1% 44.3% 5.9%

Mason Barnett Approach › Counts

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Year Team Early% Behind% 2-Str% Early BIP% F-Str% TF-Str% ECS% 2-Str O-Sw% PAR%
2025 ATH 56.8% 11.4% 31.8% 13.5% 60.6% 53.8% 22.0% 21.2% 13.1%
2026 ATH 58.5% 13.5% 28.8% 10.4% 60.8% 52.0% 24.7% 23.8% 19.7%
RP MLB Percentile 31 26 50 2 52 70 89 24 35
RP MLB AVG 58.5% 12.3% 29.7% 14.5% 60.7% 50.0% 21.0% 26.5% 19.2%
Career 57.7% 12.5% 30.1% 11.8% 60.7% 52.8% 23.5% 22.5% 16.5%

Mason Barnett PLV

Hide 2026 MLB Percentile | Hide 2026 MLB Average
Year Team P PLV QP% AP% BP% Q-BP% MTK% HP HL PLA
2025 ATH 431 5.00 50.1% 14.8% 35.0% 15.1% 5.1% 8.8 +7 3.84
2026 ATH 511 4.89 43.8% 18.2% 38.0% 5.9% 6.5% 1.3 -3 3.81
RP MLB Percentile 29 41 26 68 41 41 23 38 70 30
RP MLB AVG 625 4.93 45.8% 17.4% 36.8% 9.0% 4.7% 0.8 0 3.53
Career 942 4.94 46.7% 16.7% 36.6% 10.1% 5.8% 10.1 +4 3.82
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