Where do these graded prices come from?

Medians of 7 real eBay completed sales aggregated per grade (PSA, BGS, CGC) — a completed-sale evidence layer, not listing asks. Sample sizes are shown per grade; thin grades deserve caution.

Is grading Pewter City Gym worth it?

Compare the graded medians below against the raw reference price of $1.44 and subtract grading fees. The CardIntel Grading ROI calculator runs this math with live numbers.

Graded Market · 7 completed sales

Pewter City Gym graded prices.

As of August 20, 2026, Pewter City Gym (Gym Heroes #115) trades across the graded ladder below, based on 7 real eBay completed sales; the raw copy’s reference price is $1.44.

Across Gym Heroes, PSA 10 copies sell for 51.5× their raw reference price on average (14 cards, 186 PSA 10 completed sales tracked).

As of August 20, 2026Raw price & chart →Grading ROI calculator →

CGC · Pewter City Gym

Grade	Median	Sales	vs Raw
Gem Mint 10	$7.50	3	5.2×

Medians of real eBay completed sales per grade; small sample sizes deserve caution. Prices are dated reference values — cite them with the as-of date above. Attribution: CardIntel (cardintel.io). See the methodology.