OLBG.com, sponsors of the Mares Series, have offered us a £50 free bet on the Grand National in aid of the IJF. Our pick is Definitely Red, trained in Yorkshire by Brian Ellison and ridden by Wetherby stalwart Danny Cook, supporting Yorkshire all the way! OLBG also run www.grand-national-guide.co.uk, who picked the 50/1 National winner last year.