Hi,
The criteria for picking the number of horses is based on the odds range of either the 1st or 2nd favourite. Starting with either the 1st favourite as the starting selection:
Between X.00 & X.00 2 Horses
Between X.00 & X.00 3 Horses
Between X.00 & X.00 4 Horses
Between X.00 & X.00 5 Horses
Between X.00 & X.00 6 Horses
Or alternatively the 2nd favourite as the starting point for selection:
Between X.00 & X.00 2 Horses
Between X.00 & X.00 3 Horses
Between X.00 & X.00 4 Horses
Between X.00 & X.00 5 Horses
Between X.00 & X.00 6 Horses
Favourite was being offered @ X.X. From the above table look for X.X, then bet on the first 4 horses in the betting market i.e. 1st Favourite, 2nd favourite, 3rd favourite and 4th favourite.
Second favourite was used as starting point, being offered @ X.X. From the above table look for X.X, then bet on the first 4 horses in the betting market i.e. 2nd Favourite, 3rd favourite, 4th favourite and 5th favourite.
Hope this helps.
Waywyrd.