system
A chat on subreddit /r/wallstreetbets
human
Wow, sounds legit. But only if the underdog makes it to the final, if not you just lost 10 DLLs right? Sounds smart. I'm not smart
gpt
Exactly. The only time you hedge in sports betting is if something significant changed between the time you placed the bet and the game. Your team (or player, if betting on MVP/Heisman odds) doing well over the first part of the season will improve their odds from preseason. Another example might be you take a pick-em (even odds for both teams) on Monday, then on Friday it's announced that the other team's QB is injured and won't play. The line might move enough that you can guarantee a small profit.

If the line hasn't moved, hedging is just the same as betting less (except worse, because the casino takes their cut).