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Old 09-04-2021, 12:04 PM   #6
cj
@TimeformUSfigs
 
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Join Date: Jan 2002
Location: Moore, OK
Posts: 46,828
Quote:
Originally Posted by Tom View Post
First, a question.

If I make a line based on probabilities and want a 25% cushion, how do I convert it to a betting line? Say a horse comes out at 4-1. Do I just multiply the 4 by 1.25, to get 5-1?

Now the topic of the thread.
This is a line I made for Sar R8 9/2

Code:


Prob  	Fair	Bet	Tote
0.217	4	5	4.3
0.217	4	5	6.8
0.205	4.5	5.6	1.45
0.145	5.5	6.9	12.8
0.12			
0.05			
0.05			
1.00			

I would do it like this, a true 25%. Multiply the percentage by 0.75, so for example the 0.217 is 0.16275. Then convert that to odds, 1/0.16275-1 = 5.14.

At bigger prices it makes a difference. For example, .10 becomes 9-1, which multiplied by 1.25 becomes 11.25. Doing it my way, it becomes 12.33 to 1.
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