With 104.5 mph K, Miz tops himself for the hardest ever by a starter (opens original article in a new tab)

A Brewers pitcher threw a 104.5 mph fastball, the fastest by a starter since 2008, and set three strikeout records in the first inning.

• Miziorowski threw a 104.5 mph fastball, the fastest by a starter since 2008.
• He recorded three strikeouts in the first inning, including two at 103.5 mph and 104.1 mph.
• The fastest pitch in the pitch tracking era remains 105.8 mph by Aroldis Chapman in 2010.