Why can't they just update the pools significantly more frequently?

Wall St went from 15mins delay before the TGJB/FNN Score days to instant.

Racing is still stuck in the stone age and in this regard it is to the benefit of a select few.

It is odd to see the P4 in the article as the multi leg win bets do not usually reflect the depth of the plunge that the win. ex, tri and super pools do.

fwiw this is in part why Derby day, Preakness day etc....are the best betting days of the year. So many tracks are open at once and so many races take place that the influence of the groups is diluted.