Fifteen days later, the colt started 3/1 second favourite for a similar event over five and a half furlongs at Navan Racecourse and recorded his first victory as he stayed on to take the lead in the final strides and win by a short head and a neck from Street Kid and The Blue Panther.
[6] Chris Hayes took the ride when Laws of Indices was stepped up in class for the Group 2 Railway Stakes over six furlongs on yielding ground at the Curragh and started the 66/1 outsider of the seven-runner field.
[9] On his first appearance of 2021 Laws of Indices started a 22/1 outsider for the Listed 2,000 Guineas Trial Stakes on 11 April at Leopardstown Racecourse and came home fifth of the ten runners behind Poetic Flare.
For his next race Laws of Indices was sent to France to contest the Group 1 Prix Jean Prat over 1400 metres on very soft ground at Deauville Racecourse on 11 July when he was ridden by Olivier Peslier and started a 29/1 outsider.
In a change of tactics, Laws of Indices went to the front from the start, led throughout the race down the centre of the track, and stayed on "gamely" in the closing stages to win by a head from Thunder Moon.
In September a half share in the colt was sold to a group of Australian owners and he was exported to join the stable of Annabel Neasham at Warwick Farm, New South Wales.