Calvin Ayre – The eyes of the horseracing world are quite rightly fixated on Cheltenham, but the world’s greatest National Hunt horse race is just around the corner, and Betfred is going to be a name you will see quite a lot during the biggest horse racing date in the calendar. The Manchester outfit has signed a three-year deal to be the ‘Official Betting Partner’ for the Crabbie’s Grand National Festival in April. Fred Done, and his band of merry men and women, will sponsor three races at the three-day meet at Aintree: the Betfred Bowl Steeple Chase on the…