Nice Middle Available

It is not exciting but there is a nice middle available for those who have accounts with

Wynn and Draftkings.

Draftkings has Celtics to win series at +150.

Wynn has Philly to win series at -135.

so assuming you'd need to bet the same amount on both to middle, if sixers win you break even and if celtics win you win +15 vig?

It is not often, but sometimes the money really is free.  Wish they were all this easy.

That is not a middle  A middle is when you hit both sides 

It is an arbitrage situation.  I dumbed it down so more people would understand. I'm an options trader so I know the difference between a middle

and an arbitrage. 

Is this legal?

It is legal.  Obviously, the opportunities are few and far between.  I usually find 2-3 opportunities a month using the six online sites

available in Massachusetts.

You need yo have multiple outs to do this successfully. You will get banned or limited if they catch on….but if you arbitrage at 20,000 dollar or your limit it is free money and depending your wager it can be very profitable. Arbitrage is easy to middle is like making 2 different bets and hard to do. 

I don't see it as an arbitrage or middle bet either.    I see it as a "risk free" bet on Boston to win the series, and you only win if Boston wins, or it is a push.

Or am I missing something?

I have the same thing going right now with my +4000 Miami Heat ticket, $50 to win 2k.  I will be betting 2k on Boston at -500 to win $400 for the Eastern series.

In the best case, I win $350, the worse, I lose 0. It is a risk free bet basically.

I think the point of arbitrage is to make a profit or come out even, basically a risk free bet on the same game. A futures bet is called covering your bet to be even or make a profit depending on your wager

@M-M

 I thought arbitrage is where you are GUARANTEED a profit on the situation. Example,  if I give you the option to buy my Apple shares for $150 a share tonight, and you sell them at market open tomorrow for $177 a share, you are guaranteed a profit. That is arbitrage...

Or buy a house for $200k, knowing the true value is 225k,  but flip/sell it for $225k a day later, that is arbitrage

Profit can mean one dollar or 10 cents, it is aloes  term. The way books notice you are arbitraging is when you bet exact amounts calculated to make a profit, like betting in decimal points or específic numbers instead of round numbers. Like betting 186.50 instead of rounding it off to 200 or at least 180. They spend a lot of money on algorithms to detect smart bettors. So by looking like a non pro you can last longer with bigger limits in the long 

Profit can mean one dollar or 10 cents, it is aloes  term. The way books notice you are arbitraging is when you bet exact amounts calculated to make a profit, like betting in decimal points or específic numbers instead of round numbers. Like betting 186.50 instead of rounding it off to 200 or at least 180. They spend a lot of money on algorithms to detect smart bettors. So by looking like a non pro you can last longer with bigger limits in the long