Shop from 43,165,956 total and 12,294,751 unique sports cards. Baseball, Football, Hockey, and Basketball.

gainesjm8

Port: 1948-2023 Baseball

Ends: 5d 16h 26m

$700.00 HappyCardboard

Find baseball cards and other sports cards on sale in Promotions & Port Sales

Ideal for Set Builders & Player Collectors

Build one order over time from multiple sellers, pay shipping once, and receive your cards in one package.

Buy Cards

Flat Rate Shipping

Buy now, ship later! Purchase over time from many sellers & ship once!

43 Million Cards Under One Roof

We house millions of sports cards from thousands of sellers and provide industry renowned customer service!

High resolution scans of the front & back of every card.

Easy & Fun Sports Card Flipping

Filter by team, player, set & more. Purchase, instantly relist, & flip for profit.

We Do The Work To Sell Your Cards

Research & identify your collectibles

Evaluate condition & value

Scan the front & back of every card

Advertise to find buyers

Store & insure consigned collectibles

Resolve customer service needs

Securely package & ship to buyers

We Have Other Unique Services

Mailbox Services

Grading Services

eBay Integration

Historical Sales Data

A Different Way to Sell Cards

We identify, scan, list, store, insure, package, and ship - just send us your sports cards, trading cards, and collectibles. COMC listings are automatically posted to eBay!

Sell Cards

The Safe and Easy Way to Buy and Sell Cards Online

Or Shop Now

Shop Recently Added

2018 Bowman - Chrome Prospects #BCP21

Luis Robert [PSA 10 GEM MT]

$35.90

1988 Fleer Update - [Base] - Glossy #U-89

Craig Biggio [PSA 9 MINT]

$30.15

2000 Fleer Ultra - Swing Kings #5SK

Ken Griffey Jr.

$44.53

2025 Topps MLB World Tour Tokyo Series Takashi Murakami Complex Exclusive - [Base] #5

Duke Snider [Poor to Fair]

$86.79

2019 Panini Select - [Base] - Silver Prizm #201

Draft Pick - Jake Plummer [PSA 9 MINT]

$34.74

2023 Bowman University Chrome - Chrome Prospect Autographs #63

Eli Holstein

$46.54

1996 Select Certified Edition - [Base] - Artist's Proof #100

Eddie George /500

$27.91

2020 Panini Mosaic - [Base] - Mosaic Prizm #211

Rookies - Jordan Love

$25.84

2024 Upper Deck PWHL 1st Edition - [Base] - Outburst #65

Young Guns - Marie-Philip Poulin

$175.28

2019-20 Upper Deck Stature - Century Momentous #CM-14

Alex Ovechkin

$40.22

2019-20 Upper Deck Chronology - Letterman Patches Letter Relics #L-CA-JG

Johnny Gaudreau /35

$86.79

2018-19 Upper Deck - Rookie Breakouts #RB15

Andrei Svechnikov /100

$46.54

2021-22 Upper Deck Credentials - Pro Visions #9

Cole Caufield

$56.88

2003-04 Upper Deck LeBron James - Box Set [Base] #17

LeBron James [PSA 9 MINT]

$70.40

2009-10 Upper Deck - Dual Game Materials #DG-YM

Isiah Thomas [Good to VG‑EX]

$18.93

2024-25 Panini Prizm - [Base] - Hyper Prizm #252

Matas Buzelis

$27.51

2003-04 Upper Deck LeBron James - Box Set [Base] #22

Jump to Popular Players!

Michael Jordan HOF	LeBron James	Aaron Judge	Alexis Lafreniere	Wolverine	Stephen Curry
Connor Bedard	Shohei Ohtani	Spider-Man	Tom Brady	Derek Jeter	Paul Goldschmidt
Connor McDavid	Luka Doncic	Ken Griffey Jr.	Zion Williamson	Ja Morant	Patrick Mahomes II
Kobe Bryant	Auston Matthews	Mike Trout	Ronald Acuna Jr.	Shaquille O'Neal	Wayne Gretzky

More Players

COMC (Check Out My Collectibles) is a unique marketplace for buying and selling sports cards, gaming cards, comics, and more. We have a great selection of singles, memorabilia cards, autographed cards, and rookie cards. Our listings include front and back scans of every card. We're also a great place to sell cards. Do you want to know more about card values? Learn about our suggested prices.