2018 Topps Update an International Affair #IA-SO Shohei Ohtani RC
RC · Card #IA-SO · Topps Update an International Affair
The 2018 Topps Update an International Affair #IA-SO is a base Shohei Ohtani card from his 2018 MLB rookie season with the Los Angeles Angels. It comes from his 2018 MLB rookie class — the year most collectors treat as his true rookie season — which keeps demand for cards like this consistently strong.
This is the base version of the card — the most accessible way into the Topps Update an International Affair Ohtani and the natural starting point for anyone building a rainbow of its parallels. Because base cards are the most widely available, condition and grade tend to drive most of the value, and the gap between a raw copy and a PSA 10 is often where the real money sits. Even so, the base is the reference point the whole rainbow is measured against, so it is usually worth owning before you chase the numbered parallels.
Topps flagship and its companions are the base-set anchor of the hobby — the most widely produced and traded Ohtani cards each year, which makes them the easiest entry point and the most liquid to buy or sell. As of July 2026, active eBay listings for the 2018 Topps Update an International Affair #IA-SO Shohei Ohtani RC are shown below, sorted cheapest-first so the lowest buy-it-now is always on top. These are live asking prices rather than sold comps, so treat them as the current market rather than a formal valuation.
