[5] Corach Rambler made his debut under rules in a three-mile novices' hurdle at Ayr on 18 January 2021, staying on dourly in the heavy ground to win by three lengths.

[6] He ran three times in novice hurdles, winning twice, with the second victory coming in a four-runner race at Carlisle,[7] He was then switched to steeplechasing, making his chase debut at Perth in September 2021.

[8] The following month, at Aintree on his second chase start, Corach Rambler gained his first victory over the larger obstacles, winning by six lengths despite racing with an awkward head-carriage.

[10] After a short break, Corach Rambler ran in the Classic Chase at Warwick, the course's most prestigious race of the season, finishing fourth, beaten almost twenty lengths by Eclair Surf.

[13] Following a seven-month break, Corach Rambler made his seasonal reappearance in October 2022 at Carlisle, finishing fifth out of seven in the listed Colin Parker Memorial Chase.

Sent off the favourite, he was again held up in the rear by Fox, making good headway between rivals on the home turn with his usual surge to the front.

[17] Following on from his second success in the Ultima, Corach Rambler was declared to run in the 2023 Grand National, where he was officially 10 pounds 'well-in' on handicap ratings for the race.

[20] Fox had injured a shoulder in a fall at Wetherby the week before the Grand National and was only declared fit to ride Corach Rambler the day before the race.