His other progeny include Cape Blanco, Frankel, Golden Lilac, Nathaniel, New Approach, Rip Van Winkle, Found, Minding and Ruler of the World.
Churchill made his racecourse debut in a six-furlong maiden race at the Curragh on 22 May in which he was ridden by Ryan Moore and started the 2/1 favourite in an eleven-runner field.
Starting the 8/11 favourite against twelve opponents he took the lead two furlongs out and won by half a length from Isomer despite drifting to the left in the closing stages.
Ridden by Seamie Heffernan he took the lead inside the final furlong and drew away in the closing stages to win by two lengths from the Jim Bolger-trained Radio Silence.
[8] On 11 September, over the same course and distance, Churchill started the odds-on favourite for Ireland's most prestigious race for juveniles, the Group One Vincent O'Brien National Stakes.
Ridden by Moore, Churchill briefly struggled to obtain a clear run before taking the lead in the final furlong and then drawing away to win "comfortably" by 4+1⁄4 lengths from Mehmas.
With Moore again in the saddle he was made the 8/11 favourite against six opponents including South Seas (winner of the Solario Stakes), Blue Point and Rivet.
After briefly struggling to obtain a clear run the favourite took the lead inside the final furlong and won by 1+1⁄4 lengths from Lancaster Bomber with Blue Point in third place and Thunder Snow in fourth.
Rather than run in any of the recognised trial races, Churchill made his debut as a three-year-old in the 2000 Guineas on 6 May at Newmarket, in which he was accompanied by his stablemates Lancaster Bomber and Spirit of Valor.
After tracking the leaders he took the lead approaching the final furlong and won by a length from Barney Roy with Al Wukair and Lancaster Bomber close behind in third and fourth.
[15] At Royal Ascot on 20 June Churchill started odds-on favourite as he attempted to extend his winning run in the St James's Palace Stakes.
After a break of more than two months, Churchill returned for the International Stakes at York Racecourse in which he was matched against older horses and moved up in distance to 10+1⁄2 furlongs.