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Pitcher · Athletics

Mason Barnett

RHP · Throws Right · Age 25Swingman
ERA
7.02
FIP
–
IP
50.0
W-L
1-4
WHIP
1.66
K%
21.8
BB%
13.1
GB%
–
K/9
9.0
HR/9
2.5
Drafted by the Kansas City Royals in 2022 (round 3), he was acquired by the Athletics via trade from the Kansas City Royals in July 2024. He made his MLB debut on August 30, 2025.Facts: MLB StatsAPI (people · transactions)
No scheduled start today. The model projection and lineup matchup appear on start days.

Four-Seam Fastball

FF · lead pitch

50% of pitches · .388 xwOBA allowed · 163 BIP · where it goes, what it costs

Pitcher Locations
where he throws it · catcher’s view
2%4%5%3%1%4%6%9%8%4%3%8%11%11%6%1%1%3%2%2%1%2%2%3%1%
Rare 0% · Common 10% · Very common 20%+
xwOBA Allowed
damage done by zone · all batters
.691.403.000.000.691.590.307.469.289.752.465.410.373.375.300.698.185.359.198–.000.700.409.700.698
Cold .200 · Avg .310 · Hot .500+
Expected Damage
locations × damage zones
.016.017.000.000.010.026.020.041.022.028.013.032.040.039.018.004.001.011.004–.000.010.009.017.007
Low risk · Average · High-risk zone
Four-Seam Fastball (50% usage) has allowed .388 xwOBA over 163 balls in play — his most-used pitch.

Arsenal

usage × whiff, ranked

6 pitch types · 1,204-pitch sample · 2026/2025 blend, weighted 4/3/1

Four-Seam Fastball FF
50% usage · 15% whiff · .388 xwOBA · 94.9 mph
Sweeper ST
17% usage · 23% whiff · .295 xwOBA · 83.6 mph
Slider SL
13% usage · 25% whiff · .335 xwOBA · 87.5 mph
Curveball CU
11% usage · 23% whiff · .290 xwOBA · 79.1 mph
Changeup CH
9% usage · 30% whiff · .223 xwOBA · 85.3 mph
Unknown UN
1% usage
Whiff% Trend
last 8 outings · by pitch · min 5 swings per point
010203040507/57/87/107/308/68/118/179/18
Four-Seam FastballSweeperSlider
Hand Splits
K% + xwOBA allowed by batter side · 2026/2025 blend, weighted 4/3/1
SplitK%xwOBASample
vs. LHB14.4 .327 146
vs. RHB25.7 .362 147
Live · client-hydrated

Market lines

current pick’em lines by book · updates through the day

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DFS picks

today’s picks for this pitcher, probability-sorted · graded nightly

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