Given X seconds from the scheduled start you can easily calculate the % of the total money pre-race money that should have arrived by then (roughly, on avg). The curves are from a 12 month data set and the formulas are 3rd order polynomials that fit them.
It adds objectivity to the subjectivity that uk dog markets 90sec before the start are as formed as uk horses 5 mins out, or aus greyhounds at about -45s. It also displels some of the feelings people get that there's a regular predictable surge' of money at a given time. If there is then it certainly isn't linked to the countdown and the reason is elsewhere.
But if it tells you anything it's that uk horse punters make their mind up pretty early. Half the money hasn't even seen what the horse looks like going down to the post, while Aussies want to see the whites of it's eyes
