2016: two-year-old season

As a two-year-old in 2016, Rekindling was ridden in all of his races by Wayne Lordan. On his racecourse debut on 30 July in a maiden race over one mile at Galway Races he started a 28/1 outsider and finished second of the seven runners behind the odds-on favourite Capri. He recorded his first success in a similar event at Gowran Park in September, leading from the start and coming home two and a half lengths clear of World War.^[6] On his final run of the year he was sent to France and moved up sharply in class for the Group 1 Critérium de Saint-Cloud on 30 October but made little impression and finished last of the thirteen runners.

At the end of 2016, when Wachman retired, Rekindling was transferred to the stable of Joseph O'Brien.

2017: three-year-old season

Rekindling began his second season in the Ballysax Stakes at Leopardstown Racecourse on 8 April. The race appeared to be dominated by Joseph O'Brien's father Aidan O'Brien who sent out Yucatan, Capri and Douglas Macarthur to fill the first three spots in the betting market whils Rekindling was a 16/1 outsider. Ridden by Lordan, Rekindling settled in fifth, made steady progress in the straight, and took the lead inside the final furlong to win by half a length from Douglas Macarthur.^[7]

He was then sent to England for the Dante Stakes at York in May and finished fourth of the ten runners behind the ill-fated Permian. In the Epsom Derby on 3 June he started a 25/1 outsider and was never in serious contention, coming home sixteenth of the eighteen runners. The colt was then stepped up in distance and matched against older horses in the Group 2 Curragh Cup over fourteen furlongs at the Curragh on 2 July and started second favourite behind the veteran Wicklow Brave. He produced a strong late run to overtake Wicklow Brave in the final strides and won by half a length.^[8] He returned to the Curragh in August and finished second to Order of St George in the Irish St Leger Trial Stakes over the same distance.

On 16 September Rekindling was back in England for the St Leger Stakes at Doncaster Racecourse and finished fourth, two lengths behind the winner Capri. Rekindling was then sent to Australia to contest the 2017 Melbourne Cup over 3200 metres at Flemington Racecourse on 7 November for which he was assigned a weight of 51.5kg. Although he was still a three-year-old by Northern hemisphere reckoning he was officially a four-year-old in Australia, where horses ages advance by a year on 1 August rather than 1 January. Ridden by the Australian jockey Corey Brown he started at odds of 14/1 in a field of twenty-three. After racing in mid-division he began to make steady progress approaching the straight. He produced a strong run on the outside, overtook Johannes Vermeer 50 metres from the finish and won by half a length, with Max Dynamite taking third to complete a 1-2-3 for Irish-trained horses.^[9][10]

Later career

In 2018 Rekindling relocated permanently to Australia where he was trained by Liam Howley. He was off the track until March 2019 when he finished last of the fifteen runners in the Australian Cup at Flemington.