Brock's Training Method
Leaders' Stadium · #promo · Uncommon · 1998JPN
Price history
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Graded values
Grades 1–6 are estimates modeled from the raw price — PSA/CGC/BGS 7–10 and Ungraded are live tracked market values.
PSA 10 chart is building — graded values are tracked nightly, a new point appears each day.
Graded population census · updated 2026-08-01
Population data from PriceCharting, updated monthly.
How much is Brock's Training Method #promo worth?
Right now (August 14, 2026) the going rate for an ungraded Brock's Training Method #promo from Leaders' Stadium is about $2.37.
Grading changes the math on this one: a PSA 10 is valued around $66.00, roughly 27.8x the raw price, while a PSA 9 sits near $49.99. 51 copies have been graded to date, and 27% of them came back a 10 — worth knowing before you pay grading fees.
We update this valuation every night from live market data and verify it against real completed sales — see the chart above for how Brock's Training Method has moved over time.
