DNB formula

[sjuesju]

Can someone tell me what is the correct formula of calculating DNB be?

[froment]

Re: DNB formula I didn't ever try to figure out the exact formula, but it's easy to get with logic and calculate DNB odds; I'll show you on example Villareal vs. Real Madrid last night; at my bookie, odss on Villareal were 2.15, and odds for draw 3.20. Let's say that you want to stake 100 EUR on Villareal DNB. In DNB, you want to win some amount if your selection wins, and to get even if it's draw; so, you can back both win and draw with different stakes; in order to get even at draw, you need to stake 100 / 3.20 = 31.25 EUR; the rest, 100 - 31.25 = 68.75 EUR goes for Villareal win. So, in case of a draw, you win 31.25 * 3.20 = 100 EUR, you get your stake back; if Villareal wins, as it did, you win 68.75 * 2.15 = 147.81 EUR; therefore, you see that it was the same as you staked 100 EUR at odds of 1.4781 (147.81 / 100); so, Villareal DNB odds are 1.4781, i.e., 1.48 - in case of draw, you get your 100 EUR back, in case of Villareal win, you profit those 48 EUR. Similarly, you can calculate odds for double chance: you want to win the same amount if Villareal either wins either draws; so, you stake (2.15/(2.15+3.20))*100 = 40.20 EUR on draw, and the rest of 59.80 EUR on Villareal win; in case of draw, you get back 40.20 * 3.20 = 128.64 EUR, in case of Villareal win, you get back 59.80 * 2.15 = 128.57 EUR; so, odds for double chance are 1.29 (128.64/100, or 128.57/100)