George Brett Topps Baseball #300

Topps Baseball 1986 · #300 · updated 2026-11-02

George Brett Topps Baseball #300 card
Price30d1y
PSA 8 most traded$20.00▲67%▲90%
PSA 10$324——
PSA 9$31.00—▼56%
Baseball index—▼3%▲59%
George Brett index—▲3%▲16%
Topps Baseball set index—▲1%▲30%
George Brett Topps Baseball #300 card
GradePrice30d1y
PSA 10$3240—
PSA 9$31.000▼ 56%
PSA 8.5$14.610—
PSA 8$20.000▲ 90%
PSA 7.5$34.990—
PSA 7$12.000▲ 66%
PSA 6.5$11.540—
PSA 6$6.500▲ 0%
PSA 5$6.000—
PSA 4$6.000—
PSA 3$6.010—

About George Brett Topps Baseball #300

George Brett Topps Baseball #300 is a 1986 Pokémon card from Topps Baseball, number 300. Right now a PSA 10 sells for about $324; a PSA 9 sells for about $31.00; a PSA 8 sells for about $20.00, each the median of the newest three recorded sales inside 30 days.

We hold 297 recorded sales of this card going back to 2020-08. By venue: eBay 93%, Fanatics 6%, REA 0%. The most traded grade over the last 90 days is PSA 8, up 90% on a year ago.

Over the same year, Baseball cards up 59%; George Brett cards up 16%; Topps Baseball set cards up 30%, so this card has outpaced the market it belongs to. The chart above plots those indices against the card.

PSA has graded 37 copies at PSA 10 and PSA 8 571, PSA 7 339, PSA 5 55. Population as of 2026-10-03, from PSA's cert records.

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George Brett Topps Baseball #300 questions

How much is a George Brett Topps Baseball #300 worth?

About $20.00 in PSA 8, the most traded grade; a PSA 10 is about $324. Prices are the median of the newest three recorded sales inside 30 days.

How much is a PSA 10 George Brett Topps Baseball #300?

About $324. PSA has graded 37 copies at 10.

Is George Brett Topps Baseball #300 going up in value?

In PSA 8 it is up 90% over the last year and up 67% over 30 days. Baseball up 59% over the same year. George Brett up 16% over the same year. Topps Baseball up 30% over the same year.

What is the PSA 10 premium on George Brett Topps Baseball #300?

A PSA 10 sells for 10.5x a PSA 9 right now ($324 against $31.00).

Where can I buy a George Brett Topps Baseball #300?

The Deals section on this page lists every auction of this card ending inside 24 hours and every Buy It Now the deal finder is pricing, each against the comp for its grade. Tap one to open it on eBay, or open the deal finder for every card.

What is the PSA population of George Brett Topps Baseball #300?

PSA 10: 37; PSA 8: 571; PSA 7: 339; PSA 5: 55; PSA 4: 21. As of 2026-10-03.