Thanks for the article
@Cincydawg and everyone for these thoughts on the theory of betting the dog.
Based on
@Cincydawg 's article it appears that betting the underdog on the moneyline is the smart play because the underdogs don't actually cover while losing very often.
The problem I always run into when looking at these ideas is that the percentages are so slim that it just isn't worth the risk.
Somewhere above, it suggested a 4.1% ROI but then noted that one particular year (I think 2020) was REALLY bad for underdogs.
According to Google there are 47 bowl games this year. Ok, if you bet $100 on each underdog that would be $4,700 bet and an ROI of 4.1% suggests that you should end up with $4,892.70 on average.
The vig is 10% but only applies to the losers. Based on that, you need to win 25/47 just to get above water and that only puts you up $80 which is an ROI of just 1.7%. Hitting on extra games helps obviously but losing extra games hurts. Within a range close to breaking even you have:
- 22-25 results in a loss of $550 or 11.70%
- 23-24 results in a loss of $340 or 7.23%
- 24-23 results in a loss of $130 or 2.77%
- 25-22 results in a gain of $80 or 1.70%
- 26-21 results in a gain of $290 or 6.17%
- 27-20 results in a gain of $500 or 10.64%
The percentages are actually worse though because I calculated that based on the $4,700 that you bet but in order to bet $4,700 you are actually risking $5,170 because each loser costs $110. If you figure based on the $5,170 at risk, your ROI for going 27-20 is only 9.67%.
It just isn't enough money to be worth the risk. Based on the article, the average for 47 games would be to go either 25-22 or 26-21 so you'd make <$300. Even if you put a thousand on each game you'd only be making an average of about $2,100. Try convincing your wife to put $50 Grand on the line in an effort to make $2,100.