Getting interesting Ray, I have done it on BSP 15 t0 43, so more or less fits your range, from 29.03.2015 to 05.08.2015 (assuming my counting Pivot table is correctly set up) there were 1346 handicap races with runners in this price range. Which should be roughly in the same region as doing the ISP range, give or take a few.

Would be helpful if someone else could do the same to see if this is in the right ball park?

Is this what you asked?

Your first 30 days for just £1