The Nag-Nag-Nag website’s strapline is “Horse race analysis using statistics and trends”.
This long-established site is run by Gavin Priestley.
As I write this in February 2015, the site has a section on free tips on the all-weather for this month. Showing just a modest 3% bank growth in the first ten days there are nine free tips for today so things could change (hopefully for the better!). There are also some free ante-post tips for Cheltenham.
In Gavin’s Blog section there are some very detailed articles, for example this month one on “Saturday Super Strikers” – the stats behind the top trainers runners on Saturdays with strike rates and profit and loss figures for each trainer – also a breakdown for the top trainer by race class, distance, age (of horse) and weight carried.
So, some very good free information here and another site well worth bookmarking.