Isn't that dependent on the number of bettors? If team A has 1,000 bets, it's odds should be much lower than of team B if it has like 300.
Odds for a certain outcome is a function of ratio of total amount of money put on the outcome to total amount of money put on all outcomes.
If 1,000 people each put 1 mBTC on team A and 300 people each put 5 mBTC on team B, the odds of team B would be 1.5 times bigger that odds of team A.