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08-13-2007, 06:01 PM
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#1 (permalink)
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SBR Sharp
Join Date: 09-29-05
Posts: 277
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Calculating parlays- Help math gurus
I'm a pure money line bettor and I do like to put parlays together and think I've benefited from them.
I recently parlayed a -800 with a -600, and the odds I was paid was -333. Is there a way to calculate what you should be getting paid for any given parlay.
I think I've heard that parlays are good for the books because they don't pay the true odds and that is why some players don't parlay at all?
Thanks
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08-13-2007, 06:08 PM
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#2 (permalink)
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SBR MVP
Join Date: 03-06-07
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08-13-2007, 06:12 PM
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#3 (permalink)
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Moderator
Join Date: 08-28-05
Location: Forest Hills, NY, Home of the Blitzkrieg Bop
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Quote:
Originally Posted by raiders72002
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My parlay calculator is better.
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08-13-2007, 06:13 PM
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#4 (permalink)
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SBR High Roller
Join Date: 08-12-07
Location: allentown, pa
Posts: 114
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I am a math major and I can't figure out the Moneyline parlays myself. I am sure that the book does have advantage though becuase on regular parlays that aren't moneylines they definitely get a pretty big advantage.
Looking at BetJamaica they pay out 11:1 on 4 team parlays when the odds are really 16 to 1 that you hit. A two team parlay pays 13:5 (not even 3:1) when it should really be 4:1.
The more teams you have in your parlay the more they are "scamming" you on what the odds are of hitting them.
I will spend some time trying to figure out the Moneyline parlays.
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08-13-2007, 06:27 PM
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#5 (permalink)
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SBR MVP
Join Date: 09-08-05
Location: England
Posts: 1,494
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Just convert them to decimal and multiply.
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08-13-2007, 06:35 PM
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#6 (permalink)
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Moderator
Join Date: 08-28-05
Location: Forest Hills, NY, Home of the Blitzkrieg Bop
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Quote:
Originally Posted by punchmaster
I recently parlayed a -800 with a -600, and the odds I was paid was -333. Is there a way to calculate what you should be getting paid for any given parlay.
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- Convert all odds to decimal format (follow the steps in this post or use my Odds Converter)
- Multiply together each of the decimal odds
- The final product represents the true parlay odds (in decimal form)
Example: What are the true parlay odds when parlaying a line of -800 with a line of -600?-800 in decimal odds form = 1 + 100/800 = 1.1250
-600 in decimal odds form = 1 + 100/600 ≈ 1.1667
True parlay odds = 1.1250 × 1.1667 = 1.3125
1.3125 in US odds form = -100 / (1.3125-1) = -320
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08-13-2007, 06:39 PM
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#7 (permalink)
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SBR Sharp
Join Date: 09-29-05
Posts: 277
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Quote:
Originally Posted by Ganchrow
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Great- thanks Ganchrow and Raiders72002! I actually didn't get taken to bad in my example- only .9 vig. Interestingly enought I layed the same bet and on this one they're paying the true odds. And just why is yours better Ganchrow?.
Nothing like getting true odds, that's why when playing craps you must lay the odds bet or money behind the pass line as it's the only bet in the casino that pays true odds.
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08-13-2007, 06:49 PM
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#8 (permalink)
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SBR MVP
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08-13-2007, 07:15 PM
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#9 (permalink)
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SBR MVP
Join Date: 09-08-05
Location: England
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You're not getting true odds, as the prices you're parlaying still contain vigorish.
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08-13-2007, 07:15 PM
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#10 (permalink)
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Moderator
Join Date: 08-28-05
Location: Forest Hills, NY, Home of the Blitzkrieg Bop
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Quote:
Originally Posted by punchmaster
Great- thanks Ganchrow and Raiders72002! I actually didn't get taken to bad in my example- only .9 vig.
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Well, no. You only paid a 0.93% premium over true parlay odds. The total vig you paid was certainly much higher. Assuming vig consistent with a -110 line set (4.545%), at -333 you paid about 9.73% in vig.
Quote:
Originally Posted by punchmaster
And just why is your [parlay calculator] better Ganchrow?.
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- because it's on this site
- because it accepts either US or decimal odds
- because it calculates not only true parlay odds, but also implied mathematical odds
- because it calculates premiums paid over both true parlay and implied mathematical odds
- because it accepts up to 15 underlying lines rather than just 10
- because it looks nicer
- because I wrote it and so if you ever have any issues with it you can always post them here
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08-13-2007, 07:19 PM
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#11 (permalink)
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SBR MVP
Join Date: 01-31-06
Posts: 1,952
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Quote:
Originally Posted by dizzyd
I am a math major and I can't figure out the Moneyline parlays myself.
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Who says No Child Left Behind isn't a success?
Quote:
Originally Posted by dizzyd
Looking at BetJamaica they pay out 11:1 on 4 team parlays when the odds are really 15 to 1 that you hit.
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Quote:
Originally Posted by dizzyd
A two team parlay pays 13:5 (not even 3:1) when it should really be 3:1.
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FYP
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08-13-2007, 07:32 PM
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#12 (permalink)
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SBR Hall of Famer
Join Date: 08-25-05
Posts: 6,037
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Quote:
Originally Posted by Ganchrow
Well, no. You only paid a 0.93% premium over true parlay odds. The total vig you paid was certainly much higher. Assuming vig consistent with a -110 line set (4.545%), at -333 you paid about 9.73% in vig.
- because it's on this site
- because it accepts either US or decimal odds
- because it calculates not only true parlay odds, but also implied mathematical odds
- because it calculates premiums paid over both true parlay and implied mathematical odds
- because it accepts up to 15 underlying lines rather than just 10
- because it looks nicer
- because I wrote it and so if you ever have any issues with it you can always post them here
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#6 sounds like something that HG character would say.
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Stern and the NBA are about as legit as Creditwagering.
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08-13-2007, 07:42 PM
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#13 (permalink)
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SBR MVP
Join Date: 03-06-07
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Ganch- What happened to your math tools? It use to be listed at the top. I would have just posted that but didn't see it anywhere.
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08-13-2007, 07:43 PM
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#14 (permalink)
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SBR MVP
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08-13-2007, 07:46 PM
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#15 (permalink)
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Moderator
Join Date: 08-28-05
Location: Forest Hills, NY, Home of the Blitzkrieg Bop
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Quote:
Originally Posted by raiders72002
Ganch- What happened to your math tools? It use to be listed at the top. I would have just posted that but didn't see it anywhere.
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Click Tools at the top of the forum. (Next to "MLB", "More" and "Odds").
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