Define 'arbitrage betting' and discuss its legality.

• A. Arbitrage betting is a form of insider trading.
• B. Arbitrage betting involves placing bets on all outcomes across bookmakers to guarantee profit; legality varies by jurisdiction and terms of service and may lead to account termination.
• C. Arbitrage betting is illegal in all jurisdictions.
• D. Arbitrage betting refers to using stakes of arbitrage to fix games.

Answer: (B)

Arbitrage betting is the practice of placing bets on all possible outcomes of an event across multiple bookmakers so that the total payout is guaranteed to exceed the total amount staked, no matter which outcome occurs. The idea rests on exploiting differences in odds between bookmakers, and the math is straightforward: you allocate your stakes so each possible result yields the same return, ensuring a risk-free profit in theory. It’s not about manipulating the game or using nonpublic information.

Legality isn’t universal. In many places it’s not illegal by itself, but bookmakers may prohibit arbitrage in their terms of service and can restrict, suspend, or close accounts or void bets if they detect it. You also need to consider practical risks—odds can move quickly, bets can fail to be matched, and profits can be small after fees or taxes. So while arbitrage betting can be legitimate in some contexts, it’s not guaranteed to be allowed everywhere, and it isn’t about insider trading or fixing games.