Backing drifters??

[laymore]

Anyone havbe statistical analysis whether is generally better value to back or lay drifters at SP?
I read on an old article the "true price" is generally between averaged matched price and SP for both steamers/drifters.
Anyone some thoughts on this or an explanation how i could research this would be great, thanks.

[Bog]

More info here about betfair Sp

https://promo.betfair.com/betfairsp/FAQs_detailedWorkings.html

[laymore]

thanks for the reply but whats this to do with my question, im an experienced trader i know what SP is.

Say i layed a drifting horse/dog pre race, is it advisable to always trade out even if liquidity doesnt allow me to get a great price wasting some ticks or is it likely better in the long run to just offer a good trading out price and if noone takes it let the bet run as unfancied runners win slightly less often then their SP in the long run anyway.
So im wondering if im wasting some "value" in the long run by hastily trading out right before the off, because it doesnt seem like the drifters win very often.
I sometimes select SP for trading out but its not often not great either,
Anyone some statistics on drifters/steamers? Im not really sure how to analyse the data betfair supplies, terrible with excel

[Bog]

It has some good info there besides what SP is. Maybe will help others .

I read that betfair markets are very efficient and in the long run every price reflects horse/dog chance to win the race, so I don't know if it would be an edge to let trades run in play for drifters. You need to do some research, maybe test some bots in demo mod.

There was an topic on betfair forum if you want to read:"Drifters don't win" - busted

http://community.betfair.com/horse_racing/go/thread/view/94102/30948115/drifters-dont-win---busted?liveView=0

[laymore]

they didnt make much of a statistical analysis did they, general conclusion seems to be that backing steamers at start price is better than laying drifters