Rule the World (horse)

Rule The World began his racing career on the amateur point-to-point circuit, winning at Affane as a four-year-old in November 2011. In the following season he was campaigned in novice hurdle times and won three races including the Slaney Novice Hurdle at Naas Racecourse in which he defeated Champagne Fever.[7] After the race Morris described the winner as "a nice horse" but also as "a big, raw bugger".[8] In March 2013 he was sent to England for the Cheltenham Festival and finished second to The New One in the Baring Bingham Novices' Hurdle.

In the 2013/2014 season Rule The World was campaigned against more experienced hurdlers and began his season by winning over two and a half miles at Naas. He finished fourth to Jezki in the Hatton's Grace Hurdle and second in the Christmas Hurdle at Leopardstown Racecourse. He was then dropped to Grade 3 class for the Limestone Lad Hurdle at Naas in January and won by seven and a half length from Jennies Jewel after leading from the start.[9] Morris described the victory as "a very pleasing performance on bottomless ground which wasn't ideal and making the running which wasn't ideal either".[10] He appeared for the second time at the Cheltenham Festival in March 2014 and finished sixth in the World Hurdle.

Rule The World competed in novice chases in the 2014/2015 National Hunt season. He failed to win but showed consistently good form, finishing second in several races including the Woodlands Park 100 Club Novice Chase, the Kilcock Novice Chase and the Hugh McMahon Memorial Novice Chase. In the spring of 2015 he was matched against more experienced opponents in the Irish Grand National and finished second of the twenty-eight starters, four lengths behind the winner Thunder and Roses.[11] On his final appearance of the season he contested the Galway Plate in July and appeared to be traveling well when he slipped and fell approaching the final fence.

In the 2015/2016 season, Rule The World was still a novice chaser despite his high class-form. He began his campaign by finishing third in the Kerry National at Listowel Racecourse and then finished second when favourite for the Like A Butterfly Novice Chase. He was runner-up to No More Heroes (also owned by O'Leary) in the Fort Leney Novice Chase at Leopardstown in December and went on to take fifth place in the Thyestes Chase. On 6 March he made a second attempt to win the Kilcock Novice Chase but finished fourth behind Sub Lieutenant, another O'Leary-owned horse. Up to that point he had been considered a contender for one of the long distance chases at the Cheltenham Festival,[12] but his disappointing performance led to him bypassing the meeting.

On 9 April 2016 Rule The World started a 33/1 outsider for the Grand National in a field which included Many Clouds, Silviniaco Conti, Sir Des Champs, Shutthefrontdoor and 34 others.[13] Ridden by the 19 year old David Mullins he tracked the leaders for most of the way and survived a mistake at the fourth last fence before moving up into contention on the final turn. He jumped the last in third place and then began a sustained run on the outside. He took the lead at the elbow and drew away in the closing stages to win by six lengths from The Last Samuri, with another eight lengths back to Vics Canvas in third.[14] He was the first novice to win the Grand National since 1958, when Mr. What won the race.[15]

Trainer Morris said, after the win: "It's Disneyland – fairytale stuff. ... He's fractured his pelvis twice. Before that I always thought he was the best horse I ever had, how good would he be with a proper rear end on him?"[16] On the day after his win at Aintree O'Leary suggested that Rule The World might be retired from racing. He said "This horse could have been Gold Cup standard but for the injuries he has suffered. He’s nine now and after that we could retire him – I wouldn't want to bring him back here again, and Mouse will have to decide how he comes out of this race, but if he never runs again who cares?"[17] Rule the World's retirement was confirmed in May 2016.[18]