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⚾ BOSTON RED SOX

Marcelo
Mayer

THIRD BASEMAN

13 Marcelo Mayer cards in Dad’s binder from 7 sets: 2026 Topps Cosmic Chrome, 2025 Bowman Chrome, 2026 Topps Chrome, 2026 Topps Holiday, 2026 Panini Donruss Elite, 2026 Panini Prizm and 1 more. That includes 3 rookie cards and 4 serial-numbered cards.

13
Cards in binder
$0.25
Starting at
/150
Rarest print
SHOP ALL 13 CARDS ↓
★ RAREST · /150
Marcelo Mayer 2026 Topps Cosmic Chrome Purple Nebula Refractor #105 /150 (front)
BEST CARD
Marcelo Mayer 2026 Topps Cosmic Chrome Aqua Equinox Refractor #105 /199 (front)
BEST CARD
Marcelo Mayer 2026 Topps Cosmic Chrome Magenta Cosmos Refractor #105 /299 (front)
😤
📣 DAD’S TAKEON MARCELO MAYER

Nine cards from two years documenting a prospect who never figured it out in Boston. The Bowman Chrome stack is heavy on 2025 parallels and inserts celebrating his arrival, but the 2026 issues tell the real story of a fourth overall pick who hit .220 before getting shipped west. These are Red Sox cards of a Giant now, which is exactly the kind of timing collectors love.

ABOUT MARCELO MAYER

Marcelo Mayer was selected fourth overall by the Boston Red Sox in the 2021 MLB Draft out of Eastlake High School in Chula Vista, California. He was the top-ranked player heading into the 2021 Amateur Draft. Mayer made his MLB debut on May 24, 2025, initially filling in at third base when Alex Bregman went on the injured list with a quad strain. In 2025, his rookie season was cut short due to injury, and in 2026 he slashed .220/.282/.312 with a .594 OPS, three home runs and 22 RBIs before getting hurt again. In August 2026, the Red Sox traded Mayer to the San Francisco Giants in return for reliever Erik Miller and minor league outfielder Carlos Gutierrez.

This collection spans Mayer's emergence as a Red Sox prospect, with 2025 Bowman Chrome featuring multiple parallels and inserts including the Adios and It Came To The League sets. The 2026 issues from Prizm, Topps Chrome, and Dynamic Duals capture his brief major league tenure with Boston before the trade.

MORE BOSTON RED SOX CARDS DAD’S HOARDING

Roman Anthony 2026 Topps Chrome Chrome Rookie Autographs Yellow Refractor #RA-RA /275, rookie card, autograph
Roman Anthony
OF · 29 cards
→
Alex Bregman 2023 Bowman Chrome Gold Geometric Refractor #15 /50
Alex Bregman
11 cards
→
Kristian Campbell 2026 Panini Prizm Prizms Pulsar #81
Kristian Campbell
2B · 9 cards
→
Franklin Arias 2026 Bowman Chrome Chrome Prospect Autographs Refractor #CPA-FA /499, autograph
Franklin Arias
SS · 8 cards
→

MORE FROM 2025 BOWMAN CHROME

Nick Kurtz 2026 Panini Prizm Throwback Signatures #TBS-NK, autograph
Nick Kurtz
2025 Bowman Chrome · 20 cards
→
Aaron Judge 2026 Topps Tribute Tribute Triple Relics Purple #TTR-AJ /75, memorabilia
Aaron Judge
2025 Bowman Chrome · 33 cards
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James Wood 2026 Topps Finest Purple #164 /75
James Wood
2025 Bowman Chrome · 25 cards
→
Cade Horton 2026 Topps Finest Finest Autographs Green #FA-CH /99, autograph
Cade Horton
2025 Bowman Chrome · 10 cards
→
Matt Shaw 2026 Topps Chrome Wave Refractor #271, rookie card
Matt Shaw
2025 Bowman Chrome · 8 cards
→
Bobby Witt Jr. 2026 Topps Holiday Red Foil #H1
Bobby Witt Jr.
2025 Bowman Chrome · 23 cards
→

FREQUENTLY ASKED: MARCELO MAYER CARDS

What is the most valuable Marcelo Mayer card in Dad's binder?

The 2026 Cosmic Chrome Aqua Equinox Refractor #105 numbered 009/199, at $20.

What is the rarest Marcelo Mayer card in Dad's binder?

The 2026 Cosmic Chrome Purple Nebula Refractor #105 numbered 036/150.

Does Dad have Marcelo Mayer rookie cards?

Yes. 3 rookie cards: 2025 Bowman Chrome Rookie Red RC Variations #39; 2025 Bowman Chrome It Came To The League #IT-10; 2025 Bowman Chrome Adios #AD-2.

How much do Marcelo Mayer cards cost here?

13 Marcelo Mayer cards here, from $0.25 to $20. The cheapest is the 2026 Prizm #291.