Athletics closer Mason Miller throws a baseball very, very hard. That's the most efficient, but not entirely helpful scouting report a manager could give a hitter tasked with turning around that velocity. For the visual learners, Miller is absolutely dominating the top of the charts when it comes to speed.
Mason Miller, my goodness
— Just Baseball (@JustBB_Media) July 11, 2025
Absolute GAS pic.twitter.com/87y4BrUxB4
That 104.1 mph effort, which on first blush reads like a misprint, happened on Thursday night in the Athletics' 5-4 victory over the Atlanta Braves. Sean Murphy was the unfortunate batter in the box at the time of the pitch, which resulted in strike three swinging.
104 MPH 😳
— MLB (@MLB) July 11, 2025
Mason Miller is throwing 🧀 pic.twitter.com/bwXJuxT2Rg
How does one go about hitting that? A salty ol' ball coach might tell you to choke up and move back in the box but they're not the one watching a hard object fly in at such a pace so it's easy for them to say. Miller finished fourth in American League Rookie of the Year voting last season and made the All-Star team.
Perhaps the most surprising thing in this is that he hasn't exactly been a shutdown option out of the 'pen in his second full MLB season, carrying a 4.28 ERA as the All-Star break approaches. Miller is surrendering a hard-hit rate of 42.2% so when batters connect they really connect.
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This article was originally published on www.si.com as Athletics Fireballer Mason Miller Unleashes Fastest Pitch of MLB Season.
