There are 16 Grade 1 hurdles races in each year’s racing calander.
Ten of them are run during the Cheltenham and Antree Festivals.
They are a niche of racing worth examining closer.
Dave Renham has dug into many years worth of past races to try and discover profitable angles.
See his findings here Grade One Hurdles
Nb the above pages requires a free account on his punterprofits site to read everything. Free access there also gets you access to many more bits of horse racing research.