Jacob Misiorowski gets World Series Game 1 start for Brewers as he looks to reclaim his ace stuff

Misiorowski has pitched twice during the 2026 playoffs and failed to complete five innings in either start

Oct 21, 2026 at 10:36 am ET • 2 min read

What seems obvious was made official Tuesday: National League Cy Young favorite Jacob Misiorowski will start Game 1 of the World Series on Friday, the Milwaukee Brewers announced. The American League champion Tampa Bay Rays have not yet announced their Game 1 starter, but ace Drew Rasmussen lines up to pitch on normal rest.

Misiorowski, 24, had a historic regular season, one in which he led baseball in ERA (1.80) and strikeouts (252), among other things. It has been tough sledding in the postseason, however. Misiorowski failed to complete five innings in either of his starts because of high pitch counts. He threw 88 pitches in four innings in Game 1 of the NLDS, and 94 pitches in 4 ⅓ innings in Game 1 of the NLCS.

Misiorowski has not necessarily gotten hit hard in the postseason, nor is his fastball velocity down. He has not gotten as many swings and misses with his heater, though, largely because it's down some induced vertical break (IVB), which is the "life" on the pitch up in the zone. That has led to more foul balls, deeper counts, and shorter outings.

Here are the numbers on Misiorowski's fastball:

	Regular season	Postseason	MLB average
Velocity	100.6 mph	101.0 mph	94.7 mph
Induced vertical break	14.7 inches	13.4 inches	15.5 inches
Swing-and-miss rate	40.2%	16.1%	21.8%
Foul rate	38.9%	67.9%	44.8%

Misiorowski's fastball has below-average IVB in general, though he makes up for it with sheer velocity and also his extension down the mound. He's 6-foot-7 and he averages a league-best 7.6 feet of extension. Misiorowski throws harder than everyone else and releases the ball further down the mound (and thus closer to the hitter) than everyone else too.

The difference between 14.7 inches of IVB and 13.4 inches is significant, though. It's the difference between below average and way below average, which makes it easier for the hitter to get the bat on the ball, even at that velocity. It's the difference between so many swings and misses during the regular season and so many foul balls in the postseason.

Why Misiorowski is missing some IVB is unclear. It could be fatigue, but if it is fatigue, it's not showing up in his velocity. It could be a mechanical issue, or maybe he's gotten caught up in the moment and is overthrowing. That's not always a good thing. Whatever the reason, it is something he and the Brewers have surely worked to correct during the team's layoff.

Game 1 of the World Series will be Misiorowski's first start in 11 days, which isn't to say he's been sitting around for 11 days. He presumably threw an extended bullpen or live batting practice session this past weekend to stay stretched out, stay sharp, and stay lined up to pitch Friday. And during that session, he no doubt worked on his mechanics.

The Brewers have not announced their rotation plans beyond Game 1, though Logan Henderson started Game 2 of the NLDS and NLCS behind Misiorowski, and it seems likely he will start Game 2 of the World Series as well. Henderson, like Misiorowski, failed to complete five innings in his NLCS start.

Thanks to their Wild Card Series bye and NLCS sweep over the Los Angeles Dodgers, the Brewers will have played only eight games in the previous 25 days going into Game 1 of the World Series.