1999 Upper Deck Encore Mark McGwire #137
1999
See all Mark McGwire cards & values1999 seasonSt. Louis CardinalsMark McGwire career & card values
$2.37est. value (ungraded)
Prices updated 2026-10-22
Based on recorded sold prices how we price cards
Price by month
Average price of the 1999 Upper Deck Encore Mark McGwire #137 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.
| Month | Source | Average | Range |
|---|---|---|---|
| Oct 2026 | Market value | $2.37 | — |
Mark McGwire prices by grade
| Grade | Value | eBay |
|---|---|---|
| Ungraded | $2.37 | Buy on eBay ↗ |
| PSA 10 | $66.25 | Buy on eBay ↗ |
| BGS 10 | $86.00 | Buy on eBay ↗ |
| CGC 10 | $40.00 | Buy on eBay ↗ |
| SGC 10 | $40.00 | Buy on eBay ↗ |
Live on eBay
Affiliate — we may earn a commission1999 Upper Deck Encore Mark McGwire #137 value & prices
The 1999 Upper Deck Encore Mark McGwire #137 is a Baseball card released in 1999. Ungraded copies carry a market value of about $2.37.
An ungraded copy is worth around $2.37, a PSA 10 (Gem Mint) around $66.25 and a pristine BGS 10 around $86.00. That's roughly a 28× premium for a gem-mint copy over raw — one of the clearest signals that condition-sensitive buyers dominate this card's market.
Is it worth grading?
With raw copies near $2.37 and top grades reaching $66.25, 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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