# What is a Robin Hood Selection?

I dedicate the Robin Hood Selection to my aunt. Recently, my aunt unexpectedly passed away. She was like a mom to me… always there no matter what I needed. My aunt supported me wholeheartedly when I told her I wanted to break into the gaming business. She was also there to help me through my failures. She was a big sports fan too. Every year I would watch the opening rounds of the NCAA tournament with her. It was a tradition. While she enjoyed college basketball, she was THE BIGGEST football fan I have ever known. My aunt was best known however as a teacher. She taught in a city school and was a favorite among students. I cannot tell you how many times I’d be out with my aunt and someone would run up to hug her. It would be one of her old students excited to see her again. Her former students were eager to tell her what they were up to and what she did for them. I already knew she was special, but it was awesome to witness what she meant to so many people. One of the many ways we keep her spirit alive is through a scholarship I started in her name and for the benefit of students in her school district. She shaped many lives in positive ways, myself included! I would not have made it where I am today without her. ❤️

#### Betting Math –

Below are some formulas that may help in your algorithm development. I will build this page out as I discuss different formulas. When I do, I will add them here. If you’d like to see some formulas that I don’t have here, send me a message to tell me what I’m missing!

If you are looking for data to use for your algorithms, I love Team Rankings for ease of use and quantity/quality of data (TeamRankings.com). You can also check out FanGraphs.com or even the websites for the sports leagues themselves.

#### Calculate a Favorite’s Moneyline based on Implied Probability

-(Implied probability / (100 – Implied probability)) x 100 = Moneyline

A team that wins 72.7% looks like this for the moneyline calculation…  -(72.7/(100-72.7))*100 = -266
What that means is this team is a value under -266

#### Calculate Implied Probability for Favorites based on Moneyline

Flip that calculation around. If you know the moneyline you can see what that means as to what the oddsmaker is calculating for that team or wager’s implied probability…
Moneyline odds / (Moneylines odds + 100) * 100 = Implied probability

For the example, if the wager is -183 then here’s what that equals in terms of implied probability of the event happening…. 183/(183+100)*100 = 64.7%

#### Calculate Implied Probability for Dogs based on Moneyline

Implied Probability (“IP”)= 100/(Plus Moneyline+100) so a +115 dog means… 100/(115+100) = 46.5% IP

#### Calculate Moneyline for Dogs based on Below 50% Implied Probability

Moneyline odds = ((100 – IP)/(IP) * 100)… so a 46.5% implied probability means… ((100-46.5)/(46.5)*100) = +115

#### Decimal Odds conversion to Moneyline

Use the following formula to convert a Decimal of 2 or greater to a Moneyline: (Decimal – 1) x 100 = American Moneyline

Use the following formula to convert a Decimal less than 2 to a Moneyline: (-100)/(Decimal – 1) = American Moneyline

#### Moneyline conversion to Decimal Odds

For positive Moneylines, divide the moneyline by 100 and then add 1: (Moneyline/100) +1 = Decimal

For negative Moneylines, divide 100 by the moneyline removing the negative sign and then add 1: (100/Moneyline) + 1 = Decimal