Sports betting arbitrage is a term you may have heard. This is a less well-known and less widely used method of betting on sports. It guarantees profits regardless of the outcome of the sporting event. This method is well-known to professional bettors, who often use it because they can take advantage of the fact that different betting sites offer different odds depending on how they view sporting events.
The bettor can profit by placing one wager per outcome at different sportsbooks.