Blas Castaño
2026 Topps Series 2
$0.25
⚾ SEATTLE MARINERS
Blas
Castaño
PITCHER
1 Blas Castaño card in Dad’s binder: 2026 Topps Series 2.
1
Card in binder
$0.25
Starting at
$0.25
Highest collection price
★ TOP CARD
Every card we’ve got
BLAS CASTAÑO CARDS IN THE BINDER
Base, parallels, numbered, autos: every Blas Castaño card Dad’s willing to part with.
😤
📣 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.
MORE SEATTLE MARINERS CARDS DAD’S HOARDING
MORE FROM 2026 TOPPS SERIES 2
FREQUENTLY ASKED: BLAS CASTAÑO CARDS
Which Blas Castaño cards have the highest eBay asking prices?
The highest-priced Blas Castaño numbered parallel cards currently listed on eBay reach up to $72.15 as of June 30th, 2026. Examples in that snapshot: 2026 Topps #688 Blas Castaño Black Diamante Foil #/10 at $72.15; Topps 2026 Series Two Blas Castaño Seattle Mariners Rookie Orange /25 #688 at $49.99; 2026 Topps #688 Blas Castaño Black Sandglitter #/10 at $30.00. Numbered parallels range from $1.00 to $72.15 as of June 30th, 2026. Base cards start around $0.99 as of June 30th, 2026.
Values based on current eBay listings.
How are Blas Castaño's eBay asking prices trending?
As of June 30th, 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 as of June 30th, 2026.
Pricing reflects current eBay listing data and is updated on a regular schedule.
Which Blas Castaño cards are listed on eBay?
As of June 30th, 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 as of June 30th, 2026, numbered parallels averaging $24.59 as of June 30th, 2026.
Listing data reflects current eBay activity and is updated regularly.
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 as of June 30th, 2026. Numbered parallels (7 listed) average around $24.59 as of June 30th, 2026 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.