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poker-penguin
03-13-2004, 06:37 AM
OK, I apologise for something so trivial, but my maths sucks.

I've been trying to qualify for a $250 buyin tournament by way of SNGs.

My thinking is that if I stand a 1/10 chance of winning the SNG, it's an even value play (although it's higher variance).

1) What is the chance of me not qualifying in 10 attempts, even if I do suck so much I'm 1/10?

Since my record of first place in SNGS is better than that, it's a positive EV play to try and sneak in the back door right?

2) If I have a 1/8 chance of placing first, how much positive EV with the back door do I have if SNGs are $25 and the tournament is $250?

3) How do these answers change if we include the $25 prize (another free shot) for second place (again assuming equal chance of all finishing spots)?

Like I said, my math sucked (and re-raising allin T2300 with QJs to defend my T200 big blind three handed probably means I'm being generous with my 1/10 estimation. But anyway, it's the back door qualification numbers I'm interested in.

Nottom
03-13-2004, 11:33 PM
[ QUOTE ]
1) What is the chance of me not qualifying in 10 attempts, even if I do suck so much I'm 1/10?



[/ QUOTE ]

(9/10)^10 = 34.9%

[ QUOTE ]
2) If I have a 1/8 chance of placing first, how much positive EV with the back door do I have if SNGs are $25 and the tournament is $250?

[/ QUOTE ]

If you figure you have a 1/8 chance of winning $250 then you EV is $250/8-$25 = $6.25/SnG.

[ QUOTE ]
3) How do these answers change if we include the $25 prize (another free shot) for second place (again assuming equal chance of all finishing spots)?

[/ QUOTE ]

I'm not sure where you will find a tourney that pays out $275 when it only takes in $250 but if you do your EV when you have a 1/10 spot of finishing in each spot is $275/10-$25 = $2.5