View New Posts
1. ## 3 way to 2 way conversion??

if I am given these odds, does anyone know a website with a calculator or a formula to remove the draw option and provide 2 way odds?? Odds provided are no vig odds by the way.

+102 (1)
+342 (X)
+259 (2)

Thanks for any help

2. +102 converted to implied prob = 49.5
+259 converted to implied prob = 27.8

49.50% and 27.80% = 77.3%, add percentages together, removing the tie, to get the total percentage.

77.3/100 = .773

49.50/.773 = 64.03%
27.8%/.773 = 35.97%
Divide each raw percentage by conversion to get back to 100%
64.03% and 35.97%= 100%

3. So I’m assuming 49.5 and 27.8 are the percentages of (1) and (2) so 77.3 is them added together. How did you get the final of 64.03 and 35.97? Sorry, I’m confused

Points Awarded:
 Optional gave Waterstpub87 10 Betpoint(s) for this post.

5. I would always go with a 3-way, assuming your partner is ok with it too.

6. Originally Posted by allwater334
if I am given these odds, does anyone know a website with a calculator or a formula to remove the draw option and provide 2 way odds?? Odds provided are no vig odds by the way.

+102 (1)
+342 (X)
+259 (2)

Thanks for any help
I'm not disagreeing with what has been posted by @Waterstpub87, but I suspect the question is more about the win probability for either side in extra time and a possible penalty shoot-out. If the: +102 (1); +342 (X); +259 (2) line is for a cup tie with no replay and winner progresses implications then the outright line on the tie isn't going to be -178 (1); +178 (2) based on the 64.03% and 35.97% win probabilities. Essentially extra-time is is going to be closer to a +/-100 line with the original favourite a now smaller favourite. I did reverse-engineer a conversion formula for extra-time draw values 6 or 7 years ago that recreated sportsbook 'to progress' lines to within 0.1%, but it's really only useful for World Cup/Euros tournament playoffs.

Edit: on the other hand if you're pricing up a 90 minute league match with 'draw no bet' then +/-178 is absolutely correct.