1999 SP Authentic Maximum Force Alonzo Mourning #M13
1999
See all Alonzo Mourning cards & values1999 seasonMiami HeatAlonzo Mourning career & card values
$1.00est. value (ungraded)
Prices updated 2026-10-20
Based on recorded sold prices how we price cards
Alonzo Mourning price history
PSA 10 market value, one reading a day. One-day spikes that reverse the next day are left out.
Price by month
Average price of the 1999 SP Authentic Maximum Force Alonzo Mourning #M13 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 | $1.00 | — |
Alonzo Mourning prices by grade
| Grade | Value | eBay |
|---|---|---|
| Ungraded | $1.00 | Buy on eBay ↗ |
| PSA 9 | $11.50 | Buy on eBay ↗ |
| Grade 9.5 | $13.00 | Buy on eBay ↗ |
| PSA 10 | $25.00 | Buy on eBay ↗ |
| BGS 10 | $33.00 | Buy on eBay ↗ |
| CGC 10 | $15.00 | Buy on eBay ↗ |
| SGC 10 | $15.00 | Buy on eBay ↗ |
Live on eBay
Affiliate — we may earn a commission1999 SP Authentic Maximum Force Alonzo Mourning #M13 value & prices
The 1999 SP Authentic Maximum Force Alonzo Mourning #M13 is a Basketball card released in 1999. Ungraded copies carry a market value of about $1.00.
An ungraded copy is worth around $1.00, a PSA 9 around $11.50, a PSA 10 (Gem Mint) around $25.00 and a pristine BGS 10 around $33.00. That's roughly a 25× 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?
The spread between raw ($1.00) and top-graded ($25.00) copies is fairly tight, so grading this card only makes financial sense for truly flawless copies — or for collectors who simply prefer slabbed cards for protection and display.
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