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Mason Barnett

#63 - Starting 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

Needs more playing time to qualify
MLB Rank MLB Average
W-L IP ERA WHIP K% BB%
1-4 40.2 7.08 1.62 20.5% 13.0%
187th 6
W
185th 98.0
IP
196th 4.33
ERA
190th 1.30
WHIP
111th 21.7%
K%
188th 8.5%
BB%
FB MPH SwStr% CSW% Str-ICR MTK% PLV PLA
95.0 9.7% 25.7% 46.7% 5.0% 4.83 4.27
74th 94.3
FB MPH
160th 11.6%
SwStr%
170th 27.7%
CSW%
181st 50.1%
Str-ICR
107th 4.9%
MTK%
173rd 4.98
PLV
187th 3.28
PLA

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Mason Barnett Overview

Hide 2026 MLB Percentile | Hide 2026 MLB Average
Year Team G GS IP W-L QS 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 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 18 4 40.2 1-4 0 7.08 1.62 5.86 7.01 4.99 4.27 20.5% 13.0% 9.3 2.66 .275 38.7% 68.4% 39.7% 38.7% 9.7% 25.7% 0.38 4.83
SP MLB Percentile 33 0 7 3-66 0 2 5 4 0 12 7 44 6 23 1 63 0 25 36 25 19 15 13 12
SP MLB AVG 20 17 98.0 6-6 6 4.33 1.30 4.35 4.28 4.21 3.28 21.7% 8.5% 8.5 1.25 .287 19.0% 72.7% 38.5% 42.8% 11.6% 27.7% 0.47 4.98
Career 23 9 63.0 2-5 0 7.00 1.63 5.41 6.23 5.13 4.12 19.4% 12.1% 9.7 2.14 .294 28.8% 64.7% 37.9% 37.8% 9.7% 25.5% 0.38 4.89

Mason Barnett Repertoire

2025 2026 All
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Mason Barnett Game Log

Mason Barnett 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
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 18 4 40.2 1-4 0 2 0 743 443 301 185 42 24 5 1 12 38 24 2 3
SP MLB Percentile 33 0 7 3-66 0 96 0 10 9 88 10 90 91 95 40 54 10 76 65 25
SP MLB AVG 20 17 98.0 6-6 6 0 0 1,611 1,031 580 416 91 59 18 1 13 91 34 4 2
Career 23 9 63.0 2-5 0 2 0 1,174 707 468 289 68 41 11 1 15 56 35 3 5

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 20.5% 13.0% .266 .538 .906 .388 .275 .347 .266 .381 .288 .436 89.1 90.0 16.7 5.86
SP MLB Percentile 44 6 23 1 1 1 63 18 26 4 47 4 35 46 22 4
SP MLB AVG 21.7% 8.5% .245 .410 .725 .318 .287 .320 .246 .324 .285 .374 88.5 89.9 14.0 4.35
Career 19.4% 12.1% .273 .506 .873 .377 .294 .349 .259 .365 .280 .407 88.9 89.3 16.8 5.41

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 ATH48.7% (95.0)--19.5% (87.3)14.8% (83.5)10.0% (79.2)7.0% (85.4)-- 48.7% 51.3%
SP MLB Percentile 91 (61) - - 58 (68) 53 (65) 38 (38) 14 (34) - - 60.7% 38.8%
SP MLB AVG 33.8% (94.3) 19.4% (93.8) 16.7% (89.3) 17.3% (86.1) 16.6% (82.2) 13.9% (80.0) 16.7% (86.1) 17.3% (86.5) 29.6% (80.7) 46.7% 53.3%
Career50.4% (94.7)--12.4% (87.3)17.2% (84.1)11.8% (78.9)8.2% (85.4)-- 50.4% 49.6%

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 ATH25.1% (30)--30.3% (20)29.1% (11)18.9% (4)19.2% (7)-- 25.1% 26.2%
SP MLB Percentile 26 (35) - - 61 (46) 51 (33) 6 (16) 21 (14) - - 19.4% 27.9%
SP MLB AVG 27.1% (52) 26.6% (16) 27.1% (23) 27.9% (34) 27.6% (26) 29.8% (24) 23.4% (34) 22.4% (41) 24.7% (16) 27.2% 27.9%
Career23.6% (48)--30.3% (20)29.2% (25)25.2% (11)21.9% (10)-- 23.6% 27.3%

Mason Barnett 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%
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 38.7% 22.7% 26.1% 12.6% 34.5% 33.1% 35.5% 31.4% 17.6% 59.6% 26.1% 5.0% 9.2% 39.7%
SP MLB Percentile 25 43 72 77 65 1 72 97 35 32 30 76 20 36
SP MLB AVG 42.8% 22.2% 24.8% 10.2% 35.8% 42.4% 33.2% 24.4% 18.3% 61.3% 24.8% 6.3% 7.7% 38.5%
Career 37.8% 22.8% 26.9% 12.4% 35.8% 36.9% 34.9% 28.2% 18.1% 61.7% 22.8% 6.7% 8.8% 37.9%

Mason Barnett 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%
2025 ATH .286 .355 .324 .351 .247 .335 .267 .358 88.5 88.4 16.8 14.3% 35.1% 25.0%
2026 ATH .266 .388 .275 .347 .266 .381 .288 .436 89.1 90.0 16.7 38.7% 39.7% 25.9%
SP MLB Percentile 23 1 63 18 26 4 47 4 35 46 22 0 36 56
SP MLB AVG .245 .318 .287 .320 .246 .324 .285 .374 88.5 89.9 14.0 19.0% 38.5% 26.5%
Career .273 .377 .294 .349 .259 .365 .280 .407 88.9 89.3 16.8 28.8% 37.9% 25.6%

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 43.7% 59.6% 43.6% 28.0% 22.2% 17.6% 77.8% 87.9% 59.8% 16.0% 9.7% 25.7% 16.3% 54.0% 0.38 46.7%
SP MLB Percentile 29 5 6 11 33 35 33 24 48 43 19 15 22 4 13 9
SP MLB AVG 44.9% 63.8% 47.7% 31.7% 24.3% 18.3% 75.7% 85.2% 59.4% 16.1% 11.6% 27.7% 17.8% 58.1% 0.47 50.1%
Career 44.9% 60.2% 44.5% 28.1% 21.8% 18.1% 78.2% 88.2% 59.3% 15.8% 9.7% 25.5% 16.6% 54.4% 0.38 47.6%

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 43.7% 32.3% 26.2% 41.5% 34.7% 17.8% 47.5% 28.9% 44.8% 5.0%
SP MLB Percentile 29 25 67 81 43 100 80 49 63 2
SP MLB AVG 44.9% 36.1% 27.4% 36.5% 35.3% 22.8% 41.8% 28.9% 43.7% 6.6%
Career 44.9% 31.3% 27.3% 41.5% 36.1% 19.3% 44.6% 28.3% 44.5% 5.7%

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 57.5% 14.3% 28.9% 13.3% 56.2% 45.4% 20.8% 26.5% 17.7%
SP MLB Percentile 23 8 39 16 10 9 49 47 37
SP MLB AVG 58.8% 11.9% 29.5% 15.2% 61.4% 49.7% 20.8% 26.7% 18.9%
Career 57.2% 13.2% 30.0% 13.4% 57.8% 48.4% 21.3% 24.4% 15.9%

Mason Barnett PLV

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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 743 4.83 44.0% 16.8% 39.2% 4.7% 5.0% 12.5 +3 4.27
SP MLB Percentile 10 12 27 28 14 14 44 25 39 7
SP MLB AVG 1,611 4.98 45.9% 17.9% 36.2% 9.8% 4.9% 4.7 +1 3.28
Career 1,174 4.89 46.2% 16.1% 37.7% 8.5% 5.0% 21.3 +10 4.12
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