Brock's Training Method, Gym Heroes #106

Brock's Training Method

1st Edition · Gym Heroes #106

18%of 197 graded came back a PSA 10

How they graded

  • PSA 1036
  • PSA 9103
  • Below 958

PSA 10 price guide$75

Printings

Every grade

Every grade

Copies at each grade, how many sit at that grade or higher, and PSA’s price where it lists one.

GradeShare of copiesCopiesPSA price
PSA 1036$75
PSA 9103139 at 9+$35
PSA 8+1 at 8.540180 at 8+$25
PSA 712192 at 7+—
PSA 62194 at 6+—
PSA 53197 at 5+—
PSA 40197 at 4+—
PSA 30197 at 3+—
PSA 20197 at 2+—
PSA 10197 at 1+—

One grade up

What the next grade costs, next to how the number of copies changes.

  • PSA 9 to PSA 10

    Costs2.1× more
    Copies2.9× fewer

    $35 to $75 · 103 to 36 copies

  • PSA 8 to PSA 9

    Costs1.4× more
    Copies2.6× more

    $25 to $35 · 40 to 103 copies

Takes

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Population from PSA as of Sep 12, 2026. It counts grading submissions, not every copy that exists. Prices are PSA’s own price guide figures as of Sep 12, 2026.

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