What's On Second Sports Cards

What's On Second Sports Cards is a classic collector-owned sports card shop on 2nd Avenue in downtown San Mateo. Owner Jordan runs one of the Peninsula's most trusted card destinations, known for genuine personal service, honest pricing, and a loyal community of regulars who keep coming back for the old-school hobby shop experience.

What's On Second Sports Cards is exactly what the hobby needs more of — a genuine, collector-first card shop run by someone who treats every customer like family. Located at 221 2nd Avenue in downtown San Mateo, this Peninsula institution has earned a near-perfect 4.8-star rating through honest pricing, deep knowledge, and the kind of personal service that turns first-time visitors into lifelong regulars.

Owner Jordan is the soul of the operation. Reviewers consistently describe him as warm, knowledgeable, and genuinely invested in his customers' collecting journeys. He asks questions about what you collect, shares his own experiences buying and selling cards, and creates the kind of relationship-driven shopping experience that big online marketplaces simply can't replicate. One customer described their first visit: Jordan welcomed them and treated them like a lifelong customer from the very first meeting.

The inventory covers sports cards across baseball, basketball, and football, with sealed hobby boxes from Topps, Panini, and Upper Deck alongside a rotating selection of singles and graded cards. Jordan is known for having a good eye — one reviewer let him pick their Heritage hobby box and pulled a 1/1 auto patch at home. Pokémon sealed product is also available for collectors looking beyond sports.

What's On Second is a no-pressure environment. Jordan doesn't push products or inflate prices. He runs a straightforward operation built on trust and repeat business — exactly the kind of shop where you can walk in with a question, spend an hour browsing, and leave feeling like you gained both a great purchase and a new friend in the hobby.

The shop is open Monday through Saturday from 11 AM to 6 PM, closed Sundays. The 2nd Avenue location in downtown San Mateo offers metered street parking and is a short walk from the Caltrain station — making it accessible from both San Francisco and the South Bay.

For Peninsula collectors who value authenticity, personal service, and honest dealing, What's On Second Sports Cards is the Bay Area's best-kept secret.