Given the odds are x4.20 and x3.00:

Here’s my simple math.. if you bet $50 at x4.20, your total return is $210.
If you bet $50 at x3.00, your return is $150.

If you take the outside bet (even money), you bet $100 and your return is $200.

So, betting on the moneyline in sportsbook is actually less risky and more profitable.