Mariners' $2,000 bet on Ray Kerr kicked off his journey to Braves postseason hero

There are times when it feels like the Seattle Mariners organization is the wellspring of all the good players who have ever come through Major League Baseball. They've thankfully gotten to enjoy greats like Ken Griffey Jr., Alex Rodriguez, Félix Hernández and Julio Rodríguez, but then there are the ones that got away. David Ortiz, Derek Lowe and Jason Varitek come to mind.

And now, Ray Kerr.

With all respect to Jackson Chourio and Drew Rasmussen, is anyone winning as many hearts and minds as Kerr in the 2026 postseason? Surely, Atlanta Braves fans will come with us on this one. Of all the things they could have expected, the team's playoff run being largely fueled by a 32-year-old lefty with a career 4.33 ERA was probably not among them.

Kerr got the ball for the Braves in their decisive Wild Card Series Game 3 against the Philadelphia Phillies, with a modest directive to give them a few solid innings as their opener. He instead gave them 3.1 scoreless innings to pace a winning effort. On Sunday, he did it again with 2.2 shutout innings in the Braves' win over the Los Angeles Dodgers in NLDS Game 2.

Where this guy has been all this time hits as a fair question. Kerr has been blowing his fastball by hitters at speeds up to 96 mph, otherwise getting some truly ugly swings at his curveball. He's allowed only three hits and two walks, all against six strikeouts.

Ray Kerr's long road from undrafted Mariners free agent to October star

None of this was written in the stars for Kerr. He wasn't a can't-miss prospect as a high schooler, or while at Mendocino College or Lassen Community College in California. He wasn't a high draft pick either.

In fact, he wasn't a draft pick at all.

It was as an undrafted free agent that the Mariners signed Kerr in 2017. His signing bonus cost a mere $2,000, apparently enough to keep him from taking the leap from the Alaska Baseball League to Cumberland University, an NAIA school in Tennessee. In his youth, he was one of six siblings who spent time in foster care. He was 22 when the Mariners signed him, and not far removed from working jobs at a 7-Eleven and a movie theater to make ends meet.

“I was like, okay, go do baseball only,” Kerr told Jesús Cano of The Athletic. “No essays, no research papers? Yeah, I’ll do that for sure.”

Kerr pitched well enough in 2019 to earn exposure in the Arizona Fall League, where he posted a 1.93 ERA in six appearances. He kept it up in 2021 after the COVID pandemic resulted in the cancelation of the 2020 minor league season, and then got traded to the San Diego Padres as part of the Adam Frazier deal. He later arrived in Atlanta by way of the Matt Carpenter trade in 2023.

Baseball America rated Kerr as the Padres' No. 20 prospect in 2022, and as the Braves' No. 15 prospect in 2024. The catch both years was that he was in his late 20s, putting him in the age range that stretches the word "prospect" to its absolute limit. His early MLB exposure didn't go well either. In 39 appearances between 2022 and 2024, he got knocked around for a 5.30 ERA and 1.417 WHIP.

Disaster struck for Kerr in June of 2024 when he had Tommy John surgery. His recovery cost him two years before he was finally able to return to the mound on July 14 of this year. He spent most of those two years at the Braves' spring training complex in Florida.

Even when Kerr resurfaced with the Braves in August, it felt temporary. The Braves were playing musical chairs with a struggling bullpen, and the report on the move from MLB Trade Rumors even concluded that Kerr "conceivably be designated for assignment and rotated out for another fresh arm, given his minimal recent track record."

Instead, here we are. Even before Kerr put on his hero hat for the playoffs, he helped stabilize Atlanta's faltering pen by allowing just three earned runs over 18.1 innings down the stretch of the regular season. Evidently, he made a believer out of Braves manager Walt Weiss.

To watch all this unfold from the perspective of Mariners fandom feels surreal. Kerr is not exactly the former Mariners prospect anyone expected to have a breakthrough October. Quite indeed, how many Mariners fans had let his name slip entirely out of mind in the years after the Frazier trade? One would guess most, if not closer to all.

This is not to suggest anyone should be beating the outrage drum. Sure, the Mariners hypothetically could have used Kerr in their own bullpen at the end of this season. Yet as stories in the "one that got away" genre go, it's hard to fault the Mariners for not knowing what they had. All they did was give Kerr a shot. Nothing after that was remotely guaranteed.

Kerr's major league success story is all his, and we're having as much fun as anyone watching it play out on such a big stage.

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