Brewers’ Fireballer Shakes Up Cubs with 104 mph Heat

Intermediate | October 18, 2025

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A Star Is Forged: Jacob Misiorowski Throws 104 mph in Playoff Relief

Game 2: A Lightning Debut

On October 6, 2025, rookie right‑hander Jacob Misiorowski lit up the radar gun and silenced the Cubs, tossing three scoreless innings while reaching 104.3 mph on two pitches. (mlb.com) In that outing, he struck out four, allowed just one hit, and walked two. (mlb.com) That performance helped the Milwaukee Brewers bounce back in their 7–3 win and take a 2–0 lead in the National League Division Series (NLDS). (reuters.com)

Game 5: Closing the Door

But the fireworks didn’t stop there. In Game 5, Jacob Misiorowski again delivered with four innings of relief, allowing just one run on a home run by Seiya Suzuki, while ceding only two more hits. (reuters.com) His win sealed the series for Milwaukee, advancing them to the NL Championship Series against the Dodgers. (reuters.com)

Why Jacob Misiorowski Throws 104 mph Matters

What makes Jacob Misiorowski’s 104 mph performance especially remarkable is his midseason struggle and injury history (mlb.com). Earlier, he had difficulty after returning from a left tibia contusion, including a steep jump in his ERA down the stretch (mlb.com). But he’s now proving he can show up when it counts—in October (mlb.com).

In a postseason setting, every pitch is magnified, and Misiorowski’s blazingly fast throws give his team both an edge and psychological impact. As teammates predicted, “he’s going to throw 104 today” … and he did. (mlb.com)

How He Did It: Mechanics, Mindset & Momentum

Raw velocity: Of his 57 pitches in one outing, 31 were over 100 mph, including two at 104.3 and 104.2 mph. (mlb.com)
Mound presence: After finishing the third inning in his first outing, he stepped on first base himself and let out a yell toward the camera—an image that captured his energy and confidence. (mlb.com)
Mental reset: Brewers’ manager Pat Murphy reportedly talked him through a dugout moment in the fourth inning of one start to keep him grounded. (mlb.com)

What Comes Next

Milwaukee now awaits the Los Angeles Dodgers in the NLCS. (reuters.com) The question: can Jacob Misiorowski continue to deliver high‑leverage innings when the stakes are higher than ever? His numbers say he’s up for it.

📚 Vocabulary

Relief (noun) – pitching in later innings, not starting the game.
Example: Misiorowski came in as relief and shut down the Cubs.
Scoreless (adjective) – giving up zero runs.
Example: He threw three scoreless innings.
Lightning‑fast (adjective) – extremely fast.
Example: His fastball was lightning‑fast at over 104 mph.
Momentum (noun) – a force or driving energy of progress.
Example: His performance gave the Brewers momentum into the next game.
Magnify (verb) – to make something appear larger or more important.
Example: In the playoffs, every mistake is magnified.
Edge (noun) – a small but significant advantage.
Example: His speed gives the Brewers an edge.
Psychological impact (noun) – mental effect on opponents or team morale.
Example: Throwing 104 mph had psychological impact on the Cubs.
High‑leverage (adjective) – relating to a situation with high pressure or importance.
Example: He’s now entering a high‑leverage role in the postseason.
Reset (verb) – to mentally or physically start fresh.
Example: A dugout talk helped him reset after a shaky moment.
Stakes (noun) – what is risked or at risk in a situation.
Example: In the NLCS, the stakes are even higher.

Questions for Discussion (About This Article)

Why was Misiorowski’s 104 mph performance especially impressive given his season history?
How did his mound presence and confidence affect the narrative beyond pure velocity?
In what ways can one dominant outing shift a playoff series?
What challenges might he face going forward in a longer series?
Which part of his performances—raw speed, control, or mental poise—do you think matters most under pressure?

Questions About the Topic

In sports or business, when does one standout performance change how people view you?
How do teams balance risk and reward when relying on a rookie in critical moments?
What psychological advantage does a player with “heat” (velocity) bring to a team?
What does “showing up under pressure” mean in your field (or studies)?
Can one impressive performance change a team’s momentum or morale?

Related Idiom

“Throwing heat” — to throw very fast (in sports or metaphorical).
In this case, Misiorowski was literally throwing heat (104 mph) and metaphorically heating up the series for Milwaukee.

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This article was inspired by: Yahoo Sports (ca.sports.yahoo.com), MLB.com (mlb.com), Reuters (reuters.com)