What is the starting price for this Mark McGwire card?

The ungraded version of the Mark McGwire #300 1989 Upper Deck card is available starting at $1.

How much is a PSA 10 graded copy worth?

A PSA 10 graded version of the 1989 Upper Deck Baseball card is valued at $58.

Is the condition of the card a major factor in its resale price?

Yes, the condition significantly impacts value; an ungraded card starts at $1, whereas a Grade 9 sells for $15.

Mark McGwire #300 1989 Upper Deck Baseball — Card Value

Name: Mark McGwire #300 1989 Upper Deck Baseball — Card Value
Brand: Baseball

1989 Upper Deck Baseball

What the Mark McGwire #300 (1989 Upper Deck Baseball) card is worth — ungraded vs graded.

Mark McGwire #300 1989 Upper Deck Baseball value — Ungraded ₩1,427 · $1 · Grade 9 ₩21,406 · $15 · PSA 10 ₩82,769 · $58. Prices updated 2026년 7월.

Set · 1989 Upper Deck BaseballNumber · #300

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Converted from USD at the ECB reference rate — sold comps are US-market sales.

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Value by grade

Ungraded

15.0×

$15

Grade 9

58.0×

$58

PSA 10

Real sold prices per grade — the PSA 10 premium on this card is 58.0× raw.Chart values in USD

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JunkPal AI· resale insightanalyzing sold comps…

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가격 데이터 검증 출처 · 1

SportsCardsPro — Mark McGwire #300 1989 Upper Deck Baseball₩2,098 · $1.47

Item details

Brand: Baseball
Set: 1989 Upper Deck Baseball
Sport: Baseball
Number: #300

Mark McGwire #300 1989 Upper Deck Baseball value

A raw (ungraded) Mark McGwire #300 runs around $1, a Grade 9 about $15, and a PSA 10 commands $58.

What drives the price

Grade, centering, rookie/star status, set scarcity, and print run drive sports-card value. PSA/BGS gem-mint copies and rookies of stars carry the biggest premiums; raw commons sell for little.

Price guide

Sold values by grade vs. what sellers ask today

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Condition	Value	Based on
Ungraded	₩1,427 · $1	eBay sold comps
Grade 9	₩21,406 · $15	eBay sold comps
PSA 10	₩82,769 · $58	eBay sold comps

자주 묻는 질문

What is the starting price for this Mark McGwire card?: The ungraded version of the Mark McGwire #300 1989 Upper Deck card is available starting at $1.
How much is a PSA 10 graded copy worth?: A PSA 10 graded version of the 1989 Upper Deck Baseball card is valued at $58.
Is the condition of the card a major factor in its resale price?: Yes, the condition significantly impacts value; an ungraded card starts at $1, whereas a Grade 9 sells for $15.