Ungraded vs PSA 10 Darrell Porter #582 1973 Topps Baseball: price difference
Darrell Porter #582 1973 Topps Baseball value — Ungraded $3 vs PSA 10 $382. PSA 10 sells for 127.33× Ungraded (+12633%). Prices updated July 2026.
Medians of real sold listings per grade, updated July 2026 — how we compute values.
PSA 10 sells for 127.33× (+12633%) the Ungraded price — a $379 difference per card.
Grade 9 sells for 12.33× (+1133%) the Ungraded price — a $34 difference per card.
Should you get this card graded?
Grading runs about $30 per card all-in. On Darrell Porter #582 1973 Topps Baseball, the jump from Ungraded to PSA 10 is worth $379 (127.33×) — 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).