I've seen a back underround loads of times, long before streaming. The problem is it only takes £2 to distort the overround.BetScalper wrote: ↑Mon May 21, 2018 7:43 pmIf you have STREAMING on then on a fair few in-play horse races the Back Book% goes below 97%.Derek27 wrote: ↑Mon May 21, 2018 6:27 pmI don't trade in-play but the overrounds are usually on the right side of 100%. So if one of them looked like winning it would be odds on and the others would drift so there wouldn't be any easy profit.
Unless you laid the other three before one looked like winning, in which case you may just as well back the one you think will look like winning (and go on to win). Or have I misunderstood you again?
Unrelated but it happened on the lay side during the end of the Eurovision song contest when the Lay Book% was above 104% for several minutes.
Basically free money.
PS. Never seen it happen with STREAMING turned off.
Say you back the field to return £100 staking £90, for a £10 profit. If the £25 you wanted on a 4.0 shot doesn't get matched and his price collapses to 2.0, that's £50 you need resulting in a £15 loss. Worse still, if the 2.0 goes and you can't get a bet on and it wins you end up losing £65!