Mr. Met #MPR-MM Price Guide
Baseball · Baseball Cards 2021 Topps Opening Day Mascot Patch
We're still collecting market data for Mr. Met #MPR-MM (Baseball Cards 2021 Topps Opening Day Mascot Patch). Prices, the grade ladder and history will appear here as sales land. Grading is the single biggest value lever — check the raw-to-PSA-10 gap below, then scan your copy to see if its centering makes the grade.
These live in the Midpoint app for iPhone and Android. Free to start.
More Mr. Met cards
All Mr. Met cards →![Mr. Met [SSSP Variation] #315 2022 Topps card](https://i.ebayimg.com/images/g/4DcAAOSwTTJmQPOh/s-l500.jpg)
![Mr. Met [Black] #MAS-MRM 2026 Topps Celebration Mascots Relic card](https://i.ebayimg.com/images/g/g6QAAeSwx-9p8tTF/s-l500.jpg)
![Mr. Met [Gold] #M-11 2026 Topps Celebration Mascots Autograph card](https://i.ebayimg.com/images/g/m1IAAeSwiJ5p88SX/s-l500.jpg)
![Mr. Met [Orange] #M-16 2025 Topps Celebration Mega Box Mascot card](https://i.ebayimg.com/images/g/HTQAAeSwhEBqYHB2/s-l500.jpg)
Best on iPhone & Android
Check your baseball card in the Midpoint app
Scan with your camera to measure centering to the millimeter, get an AI grade with corner and edge close-ups, see what your copy is worth, and track it in your portfolio. Free to start.
Price alert
Watching this card? Set a line and Midpoint tells you the day the market crosses it — waiting to buy the dip or sell the spike.
Mr. Met #MPR-MM — frequently asked
Where do these Baseball card prices come from?
Prices are the PriceCharting price guide, refreshed weekly. Raw values reflect near-mint (NM) ungraded copies; graded values are per grading company and grade.