Ungraded vs PSA 10 Willie Mays #1 1966 Topps Baseball: price difference
Willie Mays #1 1966 Topps Baseball value — Ungraded $31 vs PSA 10 $51296. PSA 10 sells for 1,654.71× Ungraded (+165371%). Prices updated July 2026.
Medians of real sold listings per grade, updated July 2026 — how we compute values.
PSA 10 sells for 1,654.71× (+165371%) the Ungraded price — a $51,265 difference per card.
Grade 9 sells for 1,378.94× (+137794%) the Ungraded price — a $42,716 difference per card.
Should you get this card graded?
Grading runs about $30 per card all-in. On Willie Mays #1 1966 Topps Baseball, the jump from Ungraded to PSA 10 is worth $51,265 (1,654.71×) — if your copy grades at the top, that premium can cover the fee. A grade below the top one changes the math, so run your exact numbers first.
Run the grading break-even math →Values are estimates from real sales data — not appraisals or offers. Some links earn JunkPal a commission at no cost to you (disclosure).