Only if you have a crystal ball and can see the future.
wow! why do i get a different reward for placing a bet on events?! i placed a bet at 3.6 . as the betting window was closing, several days latter. the odds changed to 3.1. i got rewarded for the odds at witch i did not bet? how is that!
my odds changed after the fact! how is that?
Because that is how it works which is clearly explained on the page.
Bet on the latest events against other FreeBitco.in users and win a share of the prize pool if you pick the winner!
The estimated winnings are calculated using what is currently in the prize pool. Because you are betting against other FreeBitco.in users the prize pool and your share of it changes when they bet with or against you. The final odds can only be calculated after all bets have been placed. Please read
https://www.gamblingsites.com/sports-betting/types/pari-mutuel/ or
https://en.wikipedia.org/wiki/Parimutuel_betting for further information on parimutuel betting.
We even wrote this next outcome odds so that there could not possibly be any confusion.
Estimated odds for this outcome. Actual odds will be calculated after betting ends for this event.