1999 Upper Deck Textbook Excellence Mark McGwire Home Run #T21
1999
See all Mark McGwire cards & values1999 seasonSt. Louis CardinalsMark McGwire career & card values
Epic
$342.97est. value (ungraded)
Prices updated 2026-10-22
Based on recorded sold prices how we price cards
Card number
#T21
Year
1999
Parallel / variant
Home Run
Price by month
Average price of the 1999 Upper Deck Textbook Excellence Mark McGwire Home Run #T21 each month, from 1 recorded price reading. Prices are re-checked regularly; a month's average counts each day from that month's first reading at the price that held that day.
Recorded high
$342.97
Recorded low
$342.97
| Month | Source | Average | Range |
|---|---|---|---|
| Oct 2026 | Market value | $342.97 | — |
Mark McGwire prices by grade
| Grade | Value | eBay |
|---|---|---|
| Ungraded | $342.97 | Buy on eBay ↗ |
| PSA 10 | $515.00 | Buy on eBay ↗ |
| BGS 10 | $670.00 | Buy on eBay ↗ |
| CGC 10 | $309.00 | Buy on eBay ↗ |
| SGC 10 | $309.00 | Buy on eBay ↗ |
Other versions of this Mark McGwire card
3 versions, each priced on its own. Most valuable first.
Live on eBay
Affiliate — we may earn a commission1999 Upper Deck Textbook Excellence Mark McGwire Home Run #T21 value & prices
The 1999 Upper Deck Textbook Excellence Mark McGwire Home Run #T21 is a Baseball card (Home Run parallel) released in 1999. Ungraded copies carry a market value of about $342.97.
An ungraded copy is worth around $342.97, a PSA 10 (Gem Mint) around $515.00 and a pristine BGS 10 around $670.00. The gem-mint premium is modest (about 1.5× raw), so condition matters here but doesn't completely define the price.
Is it worth grading?
With raw copies near $342.97 and top grades reaching $515.00, grading a sharp copy of this card can clearly pay for itself — the spread comfortably covers a typical ~$25.00 grading fee. The catch: only submit copies with strong centering, clean corners, and unmarked surfaces, because anything below a 9 usually erases the math.
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Mark McGwire1999 Upper Deck Textbook Excellence1999Baseball cardsHome RunPSA 10BGS 10card valueprice guide