I have a question that I'm going to try to answer, but can't seem to get my ageing and deteriorating brain around how to answer. I am interested in betting on a team to win, but don't want to lose if they tie. The obvious wager is to take them on a draw no bet (DNB) wager. For instance today you can take Tottenham DNB vs D Zagreb at -257 (D Zagreb DNB is +197).
But there is another alternative. You can wager Tottenham on the 3-way wager at -112 and make a second wager on the draw +268. The second wager would be a smaller amount designed to cover th 3-way wager if a draw occurs. Both wagers would be winners if Tottenham wins, push if there is a draw, and lose if D Zagreb wins (+309 on 3-way).
Which would be the better wager with these specific odds? And is a generalized answer?