Athletics Prospect Jamie Arnold Has Two Changeups and a Major League Mindset

Jamie Arnold has a six-pitch mix that plays up thanks to outlier traits. He also has a lofty ceiling. Drafted 11th overall last year by the Athletics out of Florida State University, the 21-year-old southpaw will debut professionally this season having just missed out on our 2026 Top 100 Prospects list. And while he didn’t quite make that cut, Arnold did merit inclusion on the prospect team’s Picks to Click list, which highlights players expected to make next year’s Top 100. (Eric Longenhagen was present for Arnold’s spring training debut last Friday, video of which can be seen here.)
His delivery plays a role in his effectiveness. As Michael Baumann wrote prior to last summer’s draft, “Arnold’s long arm swing and extreme low release point make it hard to find an easy comp for him.” My colleague also referred to him as “a pitchability lefty,” which is notable given that the 6-foot-1 Tampa native possesses plus raw stuff. He certainly dominated at the amateur level. Over his last two collegiate seasons, Arnold went 19-5 with a 2.96 ERA while allowing just 153 hits over 190 1/3 frames. Moreover, he punched out 278 batters and issued just 53 free passes.
Arnold discussed his arsenal — which currently includes two changeups — as well as the mindset he takes with him to the mound, at the A’s spring training facility in Mesa, Arizona.
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David Laurila: I’ve read the reports, but how would you describe yourself as a pitcher? How do you get guys out?
Jamie Arnold: “I’m in the zone a lot; I’m a strike-thrower and like to limit walks. You could say that I’m a groundball pitcher, but I also put up strikeout numbers. So I like to play both roles: a pitcher who gets quick outs, and a pitcher who punches guys out.” Read the rest of this entry »







