Jason MaguireJason Maguire is a former horse racing jockey.Early life and careerMaguire is the nephew of another former jockey Adrian Maguire. He won the 2011 Grand National on 14/1 shot Ballabriggs. Following his Grand National win, Maguire received a five-day ban for excessive use of the whip, Ballabriggs having been driven so hard he required oxygen after the race.RetirementOn 5 May 2016 Maguire announced his retirement. His last ride was a fall in 2015.