I'm pretty sure you can only use the Chess.com post game analysis feature for games played on Chess.com.
Use of Computer Analysis for an "over the board game"?

TheGrobe is right, it's not possible right now, sorry.
So are you considering it in the future? That would be awesome!
I'm a new user and would like to enter a recently played game from an over the board tournament into the "chess.com computer analysis" tool for review.
Is this possible?