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Arsenal

ⓘ Descriptive — not a forecastGrades describe this season's stuff and run prevention. They are not forecasts: on clean season pairs the model has not beaten naive persistence (RESULTS-MLB §13), so nothing here projects next season.
Pitch typesArm slot
ⓘ Descriptive — not a forecastRelease columns from Hawk-Eye; grades are descriptive, not forecasts. · 2023,2024,2025,2026 season
Fastball arm-slot leaderboard, sorted by ABStuff+ descending. Page 1 of 116.
# rank on this page
1Pete FairbanksTB2023Rhigh34526.8-0.56.797.218.1-1.636149.398.919.0-0.226.336.912399, 99th percentile among 2023 MLB four-seamers (50+ pitches)11699, 99th percentile among 2023 MLB four-seamers (50+ pitches)10890, 90th percentile among 2023 MLB four-seamers (50+ pitches)
2Orion KerkeringPHI2023R34385.9-1.36.397.215.9-11.2813.398.016.0-11.850.050.0106—116—121—
3Ben JoyceLAA2023Rlow34275.1-1.77.1101.014.8-9.415677.6100.912.1-13.722.130.013299, 99th percentile among 2023 MLB four-seamers (50+ pitches)11499, 99th percentile among 2023 MLB four-seamers (50+ pitches)9412, 12th percentile among 2023 MLB four-seamers (50+ pitches)
4Mason MillerSD2026R34426.3-1.46.8101.416.4-655548.3101.416.4-6.033.333.712499, 99th percentile among 2026 MLB four-seamers (50+ pitches)11499, 99th percentile among 2026 MLB four-seamers (50+ pitches)10881, 81st percentile among 2026 MLB four-seamers (50+ pitches)
5Craig KimbrelPHI2023Rlow34234.7-3.26.993.615-11.775467.395.815.2-10.526.536.512499, 99th percentile among 2023 MLB four-seamers (50+ pitches)11399, 99th percentile among 2023 MLB four-seamers (50+ pitches)11699, 99th percentile among 2023 MLB four-seamers (50+ pitches)
6Jordan RomanoTOR2023Rhigh34546.0-1.67.593.717.4-341845.896.717.5-4.130.634.212299, 99th percentile among 2023 MLB four-seamers (50+ pitches)11399, 99th percentile among 2023 MLB four-seamers (50+ pitches)11196, 96th percentile among 2023 MLB four-seamers (50+ pitches)
7Trevor MegillMIL2025Rhigh34546.60.06.797.919-4.145660.699.219.0-4.117.133.611393, 93rd percentile among 2025 MLB four-seamers (50+ pitches)11399, 99th percentile among 2025 MLB four-seamers (50+ pitches)11799, 99th percentile among 2025 MLB four-seamers (50+ pitches)
8Josh EknessMIA2026Rlow34265.3-3.46.898.014.6-7.429754.198.014.6-7.417.231.613299, 99th percentile among 2026 MLB four-seamers (50+ pitches)11299, 99th percentile among 2026 MLB four-seamers (50+ pitches)10234, 34th percentile among 2026 MLB four-seamers (50+ pitches)
9Roki SasakiLAD2026Rhigh34486.2-1.87.197.916.1-9.788142.097.916.1-9.716.130.911189, 89th percentile among 2026 MLB four-seamers (50+ pitches)11299, 99th percentile among 2026 MLB four-seamers (50+ pitches)10880, 80th percentile among 2026 MLB four-seamers (50+ pitches)
10Alex SpeasHOU2024R34446.4-1.56.498.516.3-8.6820.598.516.3-8.60.060.0106—112—83—
11Jhoan DuránMIN2023R34396.2-2.26.5100.513.3-12.945945.2101.813.7-10.732.633.312499, 99th percentile among 2023 MLB four-seamers (50+ pitches)11299, 99th percentile among 2023 MLB four-seamers (50+ pitches)10993, 93rd percentile among 2023 MLB four-seamers (50+ pitches)
12Mason MillerATH2025R34426.3-1.46.7101.416.4-650752.2101.216.9-8.632.430.512499, 99th percentile among 2025 MLB four-seamers (50+ pitches)11299, 99th percentile among 2025 MLB four-seamers (50+ pitches)10886, 86th percentile among 2025 MLB four-seamers (50+ pitches)
13Trevor MegillMIL2026Rhigh34546.60.06.697.919-4.156464.697.919.0-4.118.035.411293, 93rd percentile among 2026 MLB four-seamers (50+ pitches)11199, 99th percentile among 2026 MLB four-seamers (50+ pitches)11799, 99th percentile among 2026 MLB four-seamers (50+ pitches)
14Jacob MisiorowskiMIL2026Rlow34305.2-1.97.6100.615.3-11.2167663.3100.615.3-11.236.641.412999, 99th percentile among 2026 MLB four-seamers (50+ pitches)11199, 99th percentile among 2026 MLB four-seamers (50+ pitches)12399, 99th percentile among 2026 MLB four-seamers (50+ pitches)
15Jake DiekmanNYM2024Llow34215.64.06.594.711.117.528247.694.711.117.522.834.212499, 99th percentile among 2024 MLB four-seamers (50+ pitches)11199, 99th percentile among 2024 MLB four-seamers (50+ pitches)10887, 87th percentile among 2024 MLB four-seamers (50+ pitches)
16Matt BrashSEA2026R34325.4-2.56.697.48-16.7166.196.513.6-10.80.020.0108—111—107—
17Gregory SotoPHI2023L34315.52.36.796.48.11716917.698.814.211.024.431.412699, 99th percentile among 2023 MLB four-seamers (50+ pitches)11199, 99th percentile among 2023 MLB four-seamers (50+ pitches)11398, 98th percentile among 2023 MLB four-seamers (50+ pitches)
18A. J. PukMIA2023Llow34265.53.37.296.414.911.348651.495.812.912.126.944.712399, 99th percentile among 2023 MLB four-seamers (50+ pitches)11199, 99th percentile among 2023 MLB four-seamers (50+ pitches)11499, 99th percentile among 2023 MLB four-seamers (50+ pitches)
19Matt BrashSEA2025R34325.4-2.56.497.48-16.7415.195.813.1-10.841.230.6101—111—108—
20Ryan HelsleySTL2025Rott626.2-0.16.698.819.3-2.144545.599.317.7-2.215.330.510984, 84th percentile among 2025 MLB four-seamers (50+ pitches)11199, 99th percentile among 2025 MLB four-seamers (50+ pitches)11699, 99th percentile among 2025 MLB four-seamers (50+ pitches)
21Logan GilbertSEA2025R34436.0-1.27.696.417.2-7.177937.195.416.6-8.516.435.511188, 88th percentile among 2025 MLB four-seamers (50+ pitches)11199, 99th percentile among 2025 MLB four-seamers (50+ pitches)11295, 95th percentile among 2025 MLB four-seamers (50+ pitches)
22Bryan AbreuHOU2023R34415.6-2.26.695.616.6-649641.297.616.3-7.434.035.311291, 91st percentile among 2023 MLB four-seamers (50+ pitches)11199, 99th percentile among 2023 MLB four-seamers (50+ pitches)9936, 36th percentile among 2023 MLB four-seamers (50+ pitches)
23Andrew HoffmannAZ2025Rhigh34506.0-0.66.794.515.4-5.310241.694.517.1-6.918.032.510358, 58th percentile among 2025 MLB four-seamers (50+ pitches)11199, 99th percentile among 2025 MLB four-seamers (50+ pitches)9816, 16th percentile among 2025 MLB four-seamers (50+ pitches)
24Aroldis ChapmanPIT2024Lhigh34526.20.47.396.917.82.237733.597.817.34.022.436.711393, 93rd percentile among 2024 MLB four-seamers (50+ pitches)11199, 99th percentile among 2024 MLB four-seamers (50+ pitches)10357, 57th percentile among 2024 MLB four-seamers (50+ pitches)
25Logan GilbertSEA2024R34436.0-1.27.696.417.2-7.193530.896.616.2-7.116.234.811496, 96th percentile among 2024 MLB four-seamers (50+ pitches)11099, 99th percentile among 2024 MLB four-seamers (50+ pitches)11398, 98th percentile among 2024 MLB four-seamers (50+ pitches)

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