Are these ratings accurate?

Hello. I just played an Over the board tournament (memorial day classic) in the Under 1200 section. I put in my games from over the board and did a game review for each over the board game I played in the chess.com analysis section. In this analysis, it gives you an average rating based on that one game. Over 5 games, my average "reviewed game" from my tournament is about 1700. Does this mean I play like a 1700 rated player? Meaning, I could do just fine in an Under 1800 section?

No

lol

Doubtful. OTB (Over-the-board) ratings tend to be a bit tougher than online; it is simply a different pool of players even though both chess.com and OTB rating systems are accurate. Since your flag is currently set as USA, then your OTB organization is likely USCF. Depending on your rating, USCF might be a few hundred rating points "tougher" meaning that if your chess.com rapid rating was 1700, you might only be rated about 1500 USCF. My USCF rating is around 1850, but my chess.com rapid rating is currently over 2000; this is only 150 point interval, but I've heard others have a gap of even 200, 300 or even more of a difference (if you are lower rated, then statistically more chance for an interval difference to be larger).

Also, chess.com's game review rating estimate isn't too accurate. chess.com has been thinking of replacing this option with a more accurate "you play as" rating estimate. In the meantime though, I'd just take this as a fun estimate, but not much more than that.