[5] Lockton's dam Bridestones, a half-sister to the Doncaster Cup winner Crash Course, was a useful racemare who won three times over middle distances in 1978 and added a fourth success in 1979.
He was then stepped up in class to contest the Group 3 Solario Stakes at Sandown Park in August and finished third behind Shining Water (a filly) and Sanam, beaten three lengths by the winner.
The colt produced a sustained run in the closing stages and caught Baba Karam on the line to win by a head with Rock Chanteur three quarters of a length away in third place.
[8] Lockton ended his season with a trip to France for the Group 1 Grand Critérium over 1600 metres at Longchamp Racecourse in October and produced one of his best performances, staying on strongly in the straight to finish second of the nine runners behind the Aga Khan's filly Danishkada.
After a second-place finish to Ascot Knight in the Scottish Derby he recorded his second win of the season in the Listed Strensall Stakes over nine furlongs at York Racecourse in September, beating Shady Heights by one and a half lengths.
[2] For the 1988 season, Lockton was transferred permanently to the United States where he was trained by Angel Penna, Jr and raced in the colours of Blue Goose Stable.
In 1989 the five-year-old failed to win or place in three starts, ending his track career by coming home fifth in the Coors Light Silver Bullet Stakes at Gulfstream on 4 March.