Ungraded vs PSA 10 Sandy Koufax #100 1966 Topps Baseball: price difference
Sandy Koufax #100 1966 Topps Baseball value — Ungraded $39 vs PSA 10 $12840. PSA 10 sells for 329.23× Ungraded (+32823%). Prices updated July 2026.
Medians of real sold listings per grade, updated July 2026 — how we compute values.
PSA 10 sells for 329.23× (+32823%) the Ungraded price — a $12,801 difference per card.
Grade 9 sells for 274.36× (+27336%) the Ungraded price — a $10,661 difference per card.
Should you get this card graded?
Grading runs about $30 per card all-in. On Sandy Koufax #100 1966 Topps Baseball, the jump from Ungraded to PSA 10 is worth $12,801 (329.23×) — 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).