Closer to zero than 1%..

The only advantage for it is the choice, but you have to be damn sure about some things, not just that one team would win, but it will do so with more or fewer goals or you know something about how teams play during each half, but in all seriosness, if you're able to read that much in a single game you could probbaly do for more than one, and just stick with a way less riskier parlay full of handicaps.

I could count on my fingers the number of games I was that confident about something in a game and the betbuilder would give me anything close to a 2x  to a way more secure and comfortable single bet.