With many bookmakers now running 24-hour operations, not all firms guarantee the prices that feature in Pricewise in the Racing Post. The following is the current policy of William Hill:
"We open betting with our prices at 5.30 pm the day before the race (sometimes earlier for feature races). These are traded in retail until the shops close and all the way through the night online. Naturally, prices do fluctuate throughout the evening trading and in particular the pricewise selections.
Our policy on race day prices across the channels is as follows:
"We will always re-release advertised prices that are in print in the Racing Post at 9am (irrespective of shop opening time). We will endeavour to hold our prices for as long as possible*."
" We will always re-release advertised prices that are in print in the Racing Post at 8.30am (9am on Sundays). We will endeavour to hold our prices for as long as possible*."
*"Unless the race fundamentally changes overnight, e.g. non-runners or an extreme change in going."