by osknows » Sat Sep 24, 2011 1:47 am
If your bet is matched after the withdraw then you will get full odds/price matched with no reduction. The reduction factor is only applied AFTER a bet has been matched and a horse is subsequently withdrawn.
If your bet is not matched through BA/Betfair and you take SP when the race goes inplay then I think the only scenario where the reduction factor could apply is if a horse refuses to run from the stalls. This scenario is very rare and is not set in stone how matched bets are handled by Betfair.
Also, dead heats will affect your profit for both back & lay bets