There are currently 49 runners still entered for the Grand National. This will be whittled down to 40 on Friday, in readiness for Saturday's big race: the 2013 Aintree Grand National.

The table below is a runner-by-runner guide to the 2013 National, along with their key stats against the main trends and key requirements for the big race. A quick key to the column headings is included.

Falls - the number of times each horse has fallen, unseated its rider, or been brought down. You want a very good jumper in the Grand National!

Max Win (f) - the furthest, in furlongs, each horse has won over. To win over nearly four and a half miles (36f) requires proven stamina.

Max Fld Win - the biggest field of runners each horse has won in. There are 40 horses in the National, and proven form in a big field is a big help.

AGE / WGT / OR - The respective age (9-11 optimal); weight (eleven stone or more might be best); and official rating for each horse.

Chases - The number of races over fences each horse has had. Ten to twenty is ideal.

Max Class Win - the highest class of race each horse has won. G1Ch = Grade 1 Chase (the highest class); C4H = Class 4 Hurdles (low class and wrong obstacle)

Green / Amber / Red - the number of optimal (Green), acceptable (Amber), and questionable (Red) attributes each runner has, from a maximum of eight.

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