Buster Posey’s Hall of Fame case has always been bigger than the box score, and Jake Peavy just added another line to the argument.
The former Giants catcher is eligible for Cooperstown as part of the 2027 class, and his résumé already carries plenty of weight: 13 seasons in San Francisco, three World Series titles in 2010, 2012 and 2014, and the kind of leadership that made him the player everyone in the room trusted. Even now, as the Giants’ president of baseball operations, Posey’s reputation around the franchise remains strong enough that he’s earned a long leash as he grows into the executive side of the job.
What makes Posey such a compelling Hall of Fame candidate is that his value never stopped at the numbers. He was elite behind the plate, and pitchers knew it. Peavy, speaking on MLB Network, made that point plainly when discussing the impact Posey had after San Francisco acquired him at the trade deadline.
“It's because [Buster Posey] was calling the pitches,” Peavy said.
That wasn’t just talk. Before joining the Giants, Peavy had posted a 4.72 ERA in 20 games with the Boston Red Sox.
.@JakePeavy_22 on having a 2.17 ERA with the 2014 Giants as a 33-year-old Trade Deadline acquisition:
— MLB Network (@MLBNetwork) November 13, 2026
"It's because [Buster Posey] was calling the pitches." https://t.co/hYNvpjqF1D pic.twitter.com/l1NoPU0FVv
Once he got to San Francisco, he looked like a different pitcher, finishing with a 2.17 ERA in 12 appearances. He was 33 at the time, and some decline was expected, but Posey helped unlock a stretch where Peavy turned back the clock and played a major role in the Giants’ run to their third championship in five years.
Peavy’s time in the majors was short after that - just two more seasons - but for that run, Posey’s presence clearly mattered.
The counting stats won’t jump off the page the way they do for some Hall of Famers. Posey finished with 158 home runs and 729 runs batted in, though he also closed his career with a .302 batting average. Still, the Giants won big with him, and the kind of impact he made on the field - the kind that doesn’t always show up in a stat line - is exactly why his candidacy keeps looking stronger.
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