![Bob Gibson [SP] #508 2020 Topps Baseball](/api/images/junkpal-products/sports/bob-gibson-sp-508-baseball-cards-2020-topps-sport/cover.webp)
Ungraded vs PSA 10 Bob Gibson [SP] #508 2020 Topps Baseball: price difference
Bob Gibson [SP] #508 2020 Topps Baseball value — Ungraded $5 vs PSA 10 $59. PSA 10 sells for 11.8× Ungraded (+1080%). Prices updated July 2026.
Medians of real sold listings per grade, updated July 2026 — how we compute values.
PSA 10 sells for 11.8× (+1080%) the Ungraded price — a $54 difference per card.
PSA 10 sells for 5.36× (+436%) the Grade 9 price — a $48 difference per card.
Should you get this card graded?
Grading runs about $30 per card all-in. On Bob Gibson [SP] #508 2020 Topps Baseball, the jump from Ungraded to PSA 10 is worth $54 (11.8×) — 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).