Brewers Suddenly Have A Real October Decision To Make On Harrison

As the Milwaukee Brewers gear up for the 2026 postseason, Kyle Harrison's ongoing struggles cast uncertainty over crucial roster decisions in their starting rotation.

The Brewers have nine games left in the regular season, their spot in the 2026 postseason already secured, and the real work now is about fine-tuning the October roster. Top seed in the National League is still in play, but the bigger internal debate is how Milwaukee wants to shape its pitching staff for the playoffs.

Jacob Misiorowski and Logan Henderson look set as the Brewers’ top two starters for October. After that, things get murky fast. The No. 3 role and the rest of the staff are still open questions, and one of the biggest names hanging over the decision is Kyle Harrison.

Harrison, 25, came to Milwaukee from the Boston Red Sox in the Caleb Durbin deal back in February, and for a while he looked like a real find. He was rolling through the first half of the 2026 season and putting together the best stretch of his major league career.

But everything changed after a month-long IL stint from early July to early August because of forearm tightness. Since then, the results have fallen off sharply.

In eight appearances, seven of them starts, since the All-Star Break, Harrison has a 7.85 ERA. The fastball that had been such a weapon has lost velocity and vertical movement, and that has made him far less effective.

Milwaukee already sent him to the bullpen temporarily, then gave him another chance to start Thursday afternoon in the series finale against the Pittsburgh Pirates. He did not make the most of it.

Harrison lasted only 1.2 innings, giving up four earned runs on four hits and two walks. The velocity ticked up a bit from where it had been after the injury, but the fastball still wasn’t carrying the same life, and he wasn’t missing many bats.

That leaves his postseason outlook hanging by a thread. To earn a roster spot, Harrison would likely need multiple relief appearances showing that the fastball is back where it needs to be. With only nine games left, that path looks awfully narrow.

If Harrison is out of the picture, the Brewers still have plenty of pitching options. A projected 12-man NLDS staff could include Misiorowski, Henderson, Dustin May, Robert Gasser, Trevor Megill, Abner Uribe, Aaron Ashby, JoJo Romero, Chad Patrick, DL Hall, Shane Drohan and Antonio Senzatela.

Even without Harrison, Milwaukee has several multi-inning arms in Gasser, Hall, Drohan and Patrick who can handle bulk work if needed. A bullpen game, or something close to it, is likely coming in one of the first three games of the NLDS, just as the Brewers did in Game 2 of last year’s NLDS against the Chicago Cubs. So the line between starters and relievers is more flexible than it looks on paper.

For now, the Brewers appear capable of making the October run they want without Harrison regaining his old form. If he does manage to rediscover it before the postseason starts, that would only give Milwaukee another weapon. But right now, the club can’t count on the left-hander for meaningful innings in October.

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