Blas Castaño
2026 Topps Topps Series 2
$0.25
★ TOP CARD
Every card we’ve got
THE BLAS CASTAÑO COLLECTION
Base, parallels, numbered, autos — every Blas Castaño card Dad’s willing to part with.
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📣 DAD’S TAKEON BLAS CASTAÑO
Look at this guy posing like he's about to throw the pitch of the century while wearing a uniform that's three sizes too big. Kid's got that "I showed up to picture day in my older brother's hand-me-downs" energy. And what's with that serious game face? You're a rookie pitcher, son, not auditioning for a baseball card Mount Rushmore.
ABOUT BLAS CASTAÑO
Blas Castaño is a pitcher in the Mariners organization, and he's one of those guys who's still working his way through the system. He doesn't have official rookie cards yet, so you're mainly looking at minor league issues and prospect cards if you can find them. For collectors, these early cards can be interesting if he breaks through to the majors and makes an impact. Right now it's a speculative play, so look for any autographs or low-numbered parallels that could pay off down the road if his career takes off.
OTHER SEATTLE MARINERS DAD’S HOARDING
FREQUENTLY ASKED — BLAS CASTAÑO CARDS
Which Blas Castaño cards sell the most frequently?
As of June 29th, 2026, there are over 189 Blas Castaño cards listed on eBay. Listings range from $0.99 to $59.99, with an average price around $9.96. That includes rookie cards averaging $7.74, numbered parallels averaging $24.59.
Listing data reflects current eBay activity and is updated regularly.
How are Blas Castaño's card prices and popularity trending?
As of June 29th, 2026, Blas Castaño's card market is active with 189 listings on eBay. Current listings range from $0.99 to $59.99, with an average around $9.96. Numbered parallels are averaging $24.59.
Pricing reflects current eBay listing data and is updated on a regular schedule.
What is Blas Castaño's most expensive card?
The highest-priced Blas Castaño numbered parallel cards currently listed on eBay reach up to $72.15. Numbered parallels range from $1.00 to $72.15. Base cards start around $0.99.
Values based on current eBay listings as of June 29th, 2026.
Are Blas Castaño cards a good investment?
Card collecting involves risk, and past performance doesn't guarantee future returns. Here's what the data shows for Blas Castaño:
Blas Castaño's card market is active with 189 listings on eBay. Numbered parallels (7 listed) average around $24.59 and tend to hold value better than base cards due to limited supply.
Grumpy Dad Cards provides market data for informational purposes. We're card collectors, not financial advisors.