Look for the race to be run over the longest distance of the day. If more than one are joint-longest, consider all qualifying races together.

Using the pre-post prices, bet the shortest-priced horse that is a previous distance winner. If more than one qualifier there is no bet. If there are no previous distance winners in the longest or joint-longest races there is no bet.

The Horse Racing Systems website, www.horseracingsystems.net, comments: "With extra emphasis on stamina, the ability of a horse to get the trip is more important than at shorter distances.

"Previous distance scorers have already proved their stamina, and their advantage is magnified at longer trips. They are often able to outstay classier opponents who are being upped in distance."