Only 1.1% of all grading submissions were PSA 10s, resulting in a scarcity that bumps Clemens' PSA 10s to sell for an average of $1,100. His PSA 9s, population 9,134 (!), sell for $40 - $50.

Ohtani ranks sixth all-time in PSA graded cards (626,082 as of Monday) across all categories, while Griffey sits fourth (764,562). LeBron James (684,498) is nestled in fifth between Griffey and ...