Grand National Free Bets

The Arthur Moore-trained King Johns Castle has been the subject of significant support with totesport for the Grand National today.

Totesport spokesman Damian Walker said: "The 28/1 soon went and we are now 20/1 about King Johns Castle.

"Before today, it seemed obvious that Tony McCoy would plump for 14/1 shot Butler’s Cabin of the JP McManus-owned National horses, but maybe his decision might not be so straightforward given this support for King Johns Castle.

"Every single National winner since Gay Trip won the race in 1970 had previously won over three miles or further and as King Johns Castle hasn’t done that, punters are taking his stamina on trust."