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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 44.0 7.16 1.75 20.5% 13.7%
188th 7
W
189th 118.0
IP
199th 4.28
ERA
195th 1.30
WHIP
110th 21.7%
K%
193rd 8.5%
BB%
FB MPH SwStr% CSW% Str-ICR MTK% PLV PLA
95.0 9.4% 25.7% 46.5% 4.6% 4.84 4.32
77th 94.3
FB MPH
176th 11.7%
SwStr%
175th 27.8%
CSW%
180th 50.2%
Str-ICR
80th 4.9%
MTK%
173rd 4.97
PLV
190th 3.27
PLA

Articles

9/15/2026The List 9/15: Starting Pitcher Daily Rankings Cheat Sheet (UPDATED 9/18)Nick Pollack

8/25/2026Top 100 Starting Pitchers For 2026 Fantasy Baseball 8/25: Week 23 RankingsNick Pollack

8/18/2026Top 100 Starting Pitchers For 2026 Fantasy Baseball 8/18: Week 22 RankingsNick Pollack

8/18/2026Fantasy Baseball SP Roundup 8/17: Kent Rocked, ManNick Pollack

8/15/2026Two-Start Starters: Week 21Will Orsland

See More Articles
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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 19 5 44.0 1-4 0 7.16 1.75 6.00 6.78 4.97 4.32 20.5% 13.7% 10.0 2.45 .306 37.5% 69.1% 39.8% 38.9% 9.4% 25.7% 0.38 4.84
SP MLB Percentile 23 0 4 1-80 0 1 3 1 0 12 5 44 3 12 1 26 0 25 32 23 11 12 9 13
SP MLB AVG 24 21 118.0 7-7 7 4.28 1.30 4.34 4.27 4.22 3.27 21.7% 8.5% 8.4 1.23 .287 19.0% 72.9% 38.3% 43.1% 11.7% 27.8% 0.48 4.97
Career 24 10 66.1 2-5 0 7.06 1.72 5.53 6.14 5.13 4.16 19.4% 12.6% 10.2 2.04 .313 28.3% 65.6% 38.2% 38.0% 9.5% 25.5% 0.38 4.90

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 19 5 44.0 1-4 0 2 0 822 488 335 205 49 30 6 1 12 42 28 2 3
SP MLB Percentile 23 0 4 1-80 0 96 0 7 7 92 7 90 90 96 49 68 6 77 72 33
SP MLB AVG 24 21 118.0 7-7 7 0 0 1,928 1,234 695 497 109 71 21 2 16 109 41 5 3
Career 24 10 66.1 2-5 0 2 0 1,253 752 502 309 75 47 12 1 15 60 39 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% 13.7% .282 .534 .919 .396 .306 .368 .274 .385 .306 .439 89.6 90.1 16.7 6.00
SP MLB Percentile 44 3 11 2 1 1 26 5 15 1 17 1 16 42 20 1
SP MLB AVG 21.7% 8.5% .245 .407 .723 .318 .287 .320 .245 .324 .285 .373 88.4 89.8 13.8 4.34
Career 19.4% 12.6% .283 .506 .885 .383 .313 .362 .265 .369 .292 .410 89.2 89.4 16.7 5.53

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 ATH49.0% (95.0)--18.5% (87.4)14.2% (83.6)10.1% (79.1)8.2% (85.4)-- 49.0% 51.0%
SP MLB Percentile 92 (61) - - 55 (69) 49 (68) 38 (35) 18 (34) - - 62.2% 37.3%
SP MLB AVG 34.1% (94.3) 19.7% (93.7) 16.5% (89.3) 17.5% (86.2) 16.5% (82.2) 13.8% (80.1) 16.5% (86.1) 16.8% (86.3) 30.1% (80.5) 46.5% 53.4%
Career50.5% (94.7)--12.1% (87.4)16.7% (84.1)11.8% (78.8)8.9% (85.4)-- 50.5% 49.5%

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 ATH24.3% (31)--29.6% (20)29.1% (12)22.9% (5)22.4% (9)-- 24.3% 27.0%
SP MLB Percentile 17 (31) - - 59 (41) 50 (30) 11 (13) 50 (16) - - 10.0% 38.8%
SP MLB AVG 27.0% (62) 26.8% (20) 27.0% (25) 27.9% (40) 28.0% (30) 30.0% (28) 22.8% (40) 22.0% (47) 25.5% (21) 27.3% 28.0%
Career23.2% (49)--29.6% (20)29.2% (26)27.0% (12)23.4% (12)-- 23.2% 27.7%

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 38.9% 24.4% 24.4% 12.2% 35.9% 32.3% 35.3% 32.3% 17.5% 59.6% 27.5% 4.6% 8.4% 39.8%
SP MLB Percentile 23 19 48 76 45 0 72 99 31 27 13 83 30 32
SP MLB AVG 43.1% 22.1% 24.6% 10.1% 35.7% 42.7% 33.1% 24.2% 18.3% 61.6% 24.7% 6.2% 7.6% 38.3%
Career 38.0% 23.9% 25.9% 12.2% 36.6% 36.2% 34.8% 29.0% 18.0% 61.5% 23.9% 6.3% 8.3% 38.2%

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 .282 .396 .306 .368 .274 .385 .306 .439 89.6 90.1 16.7 37.5% 39.8% 25.9%
SP MLB Percentile 11 1 26 5 15 1 17 1 16 42 20 0 32 53
SP MLB AVG .245 .318 .287 .320 .245 .324 .285 .373 88.4 89.8 13.8 19.0% 38.3% 26.3%
Career .283 .383 .313 .362 .265 .369 .292 .410 89.2 89.4 16.7 28.3% 38.2% 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 43.1% 59.4% 43.1% 27.6% 21.8% 17.5% 78.2% 88.9% 59.7% 16.3% 9.4% 25.7% 16.2% 53.4% 0.38 46.5%
SP MLB Percentile 25 2 5 8 26 31 26 12 50 50 11 12 21 1 9 10
SP MLB AVG 44.7% 63.8% 47.7% 31.8% 24.4% 18.3% 75.6% 85.2% 59.2% 16.1% 11.7% 27.8% 17.7% 58.1% 0.48 50.2%
Career 44.4% 60.0% 44.1% 27.8% 21.6% 18.0% 78.4% 88.8% 59.3% 16.0% 9.5% 25.5% 16.5% 54.0% 0.38 47.4%

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 43.1% 33.2% 26.8% 40.0% 34.8% 18.1% 47.1% 28.6% 44.6% 4.9%
SP MLB Percentile 25 27 62 74 44 98 79 47 61 3
SP MLB AVG 44.7% 36.1% 27.4% 36.4% 35.3% 22.7% 42.0% 28.9% 43.7% 6.5%
Career 44.4% 31.9% 27.5% 40.5% 36.1% 19.4% 44.5% 28.1% 44.4% 5.6%

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 57.4% 14.8% 28.3% 13.3% 56.1% 45.4% 21.4% 27.0% 18.0%
SP MLB Percentile 22 4 26 14 7 7 54 48 43
SP MLB AVG 58.6% 11.9% 29.6% 15.0% 61.5% 50.0% 20.8% 26.9% 18.8%
Career 57.2% 13.6% 29.5% 13.4% 57.6% 48.2% 21.6% 24.9% 16.2%

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 822 4.84 44.1% 16.0% 39.9% 4.3% 4.6% 15.7 +6 4.32
SP MLB Percentile 7 13 29 14 9 9 57 22 32 5
SP MLB AVG 1,928 4.97 45.9% 17.9% 36.3% 9.6% 4.9% 5.7 +1 3.27
Career 1,253 4.90 46.2% 15.6% 38.2% 8.0% 4.8% 24.5 +13 4.16
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