![Rocket's Secret Experiment [1st Edition] #120](/api/images/junkpal-products/cards/rocket-s-secret-experiment-1st-edition-120-pokemon-gym-challenge-card/img0/cover.webp)
Ungraded vs PSA 10 Rocket's Secret Experiment [1st Edition] #120: price difference
Rocket's Secret Experiment [1st Edition] #120 value — Ungraded $7 vs PSA 10 $106. PSA 10 sells for 15.14× Ungraded (+1414%). Prices updated July 2026.
Medians of real sold listings per grade, updated July 2026 — how we compute values.
PSA 10 sells for 15.14× (+1414%) the Ungraded price — a $99 difference per card.
Grade 9 sells for 6.57× (+557%) the Ungraded price — a $39 difference per card.
Should you get this card graded?
Grading runs about $30 per card all-in. On Rocket's Secret Experiment [1st Edition] #120, the jump from Ungraded to PSA 10 is worth $99 (15.14×) — 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).