2017/18 season

Minella Indo began his racing career on the amateur point-to-point circuit, and recorded an easy win in a maiden race over three miles on soft to heavy ground at Dromahane meeting on 18 March 2018.^[6] He then entered the ownership of Barry Maloney and was sent into training with Henry De Bromhead at Knockeen, County Waterford. On his first run under professional rules he ran third to Passageway and City Isle in a National Hunt Flat race at Punchestown on 28 April.

2018/19 season

In the 2018/19 National Hunt season Minella Indo was campaigned in Novices' Hurdle races. He finished third in a maiden hurdle race at Limerick Racecourse in December and then came home second to Allaho in the Grade 3 Surehaul Mercedes-Benz Novice Hurdle at Clonmel Racecourse in February. For his next start the gelding was sent to the Cheltenham Festival and started a 50/1 outsider for the Grade 1 Albert Bartlett Novices' Hurdle over three miles on 15 March. Ridden as on his previous start by Rachael Blackmore he went to the front three flights from the finish and stayed on well to win by three lengths from the Gordon Elliott-trained favourite Commander of the Fleet.^[7] Blackmore commented "I can't believe it. I always knew he was a really nice horse and thought he was coming with a right shout, but you just don't think it's going to work out. It's brilliant I don't know what to say. It's an amazing place and I'm so glad to be part of it."^[8]

On 1 May, with Blackmore again in the saddle, Minella Indo started the 5/1 third choice in the betting for the Grade 1 Irish Daily Mirror Novice Hurdle at Punchestown. After tracking the front-running favourite Allaho he went to the front approaching the final hurdle and kept on well under pressure to win by two lengths.^[9] After the race, De Bromhead said "He just stays so well. Rachael said as soon as she pulled him out, he took off and he pricked his ears coming to the last. It's lovely to come here and win this on top of the Albert Bartlett. I'm a bit lost for words to be honest, just delighted. Chasing is the plan next season".^[10]

2019/20 season

On his first appearance over fences, Minella Indo finished second to the mare Laurina in a beginners' chase over two and a half miles at Gowran Park on 23 November. In a similar event over three miles at Navan Racecourse on 18 January he started the 2/5 favourite and won by a length and a half from Captain CJ after taking the lead soon after the start.^[11] On 11 March Minella Indo ran for the second time at the Cheltenham Festival when he contested the Group 1 RSA Insurance Novices' Chase. He disputed the lead from the start and was in front at the final fence but was outpaced on the run-in and beaten a length into second place by the Nicky Henderson-trained Champ.

2020/21 season

Minella Indo began his next campaign in the Grade 3 M.W. Hickey Memorial Chase at Wexford Racecourse on 26 October. Starting the 8/13 favourite in a four-runner field and won very easily, coming home 25 lengths clear of the Kim Muir Chase winner Milan Native, despite being eased down by Blackmore in the closing stages.^[12] De Bromhead said "I'm delighted with that - he jumped brilliant and Rachael was brilliant on him. He looked sharp for his first run... you'd be hoping he'd turn into a Gold Cup horse, but we'll see and we'll take it one race at time."^[13] Four weeks later the gelding went off the odds-on favourite for the Grade 2 BetVictor Make Your Best Bet Chase at Navan and recorded another easy victory as he went to the front at the penultimate obstacle and won by seven and a half lengths from Bramah Bull.^[14] In December the gelding was moved up to Grade 1 class and started favourite for the Savills Chase at Leopardstown Racecourse but fell at the eight fence of a race which was won by his stablemate A Plus Tard.

On 7 February Minella Indo went off favourite for the Irish Gold Cup at Leopardstown, but after being in contention for most of the way he finished fourth of the five starters behind Kemboy, The Storyteller and Delta Work, beaten just under seven lengths by the winner. With Blackmore riding A Plus Tard, Minella Indo was partnered by Jack Kennedy when he started at odds of 9/1 for the Cheltenham Gold Cup over three and a quarter miles on 19 March. Al Boum Photo, who was attempting to record a third consecutive win in the race, started favourite, while the other nine runners included Native River, Kemboy, Champ, Lostintranslation (Betfair Chase), Santini (runner-up in the previous year) and Frodon (King George VI Chase). After tracking the leaders as Frodon set the pace Minella Indo moved up to take the lead on the final turn. He held off a sustained challenge from A Plus Tard to win by one and a quarter lengths with a gap of four and a quarter lengths back to Al Boum Photo in third.^[15] The 21-year-old winning jockey, who has been plagued by injury problems said "This is what I have dreamed of as a child. It could always be a lot worse - broken legs and broken collarbones will heal. It's obviously unfortunate, but you have to get on with it. It's definitely the best day of my life. I know I'm still young, but I suppose I have been in the position where I could have been winning them for a couple of years, so to get it done is brilliant."^[16]