Where do these graded prices come from?

Medians of 73 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.

Graded Market · 73 completed sales

Champions Festival - SM148 (World Championships 2018) [Staff] graded prices.

Q: Is grading Champions Festival - SM148 (World Championships 2018) [Staff] worth it?

Compare the graded medians below against the raw reference price of $499.99 and subtract grading fees. The CardIntel Grading ROI calculator runs this math with live numbers.

As of July 8, 2026, Champions Festival - SM148 (World Championships 2018) [Staff] (SM Black Star Promos #SM148) trades across the graded ladder below, based on 73 real eBay completed sales; the raw copy’s reference price is $499.99.

As of July 8, 2026Raw price & chart →Grading ROI calculator →

PSA · Champions Festival - SM148 (World Championships 2018) [Staff]

Grade	Median	Sales	vs Raw
Mint 9	$242.50	20	0.5×
NM-MT 8	$175.00	14	0.4×

CGC · Champions Festival - SM148 (World Championships 2018) [Staff]

Grade	Median	Sales	vs Raw
Gem Mint 10	$2.9K	3	5.9×
Mint 9	$315.99	19	0.6×

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.