Be My Chief began his racing career in a six furlongmaiden race at Doncaster Racecourse on 27 May in which he was ridden by Willie Ryan and started at odds of 4/9 against seven opponents. He recovered from being hampered at the start, took the lead a furlong out, and won by three lengths from Balla Cove, a colt who went on to win the Middle Park Stakes. When the colt reappeared on 22 June for the Listed Chesham Stakes at Royal Ascot he was ridden by Steve Cauthen, who partnered him in all his subsequent races. Starting at odds of 2/5 in an eight-runner field, he took the lead inside the final furlong and won by a length from the Richard Hannon, Sr-trained Osario. Be My Chief again started odds-on favourite when he was stepped up in distance for the Bernard Van Cutsem Stakes over seven furlongs at Newmarket Racecourse. He led from the start, drew clear in the final furlong, and won by three lengths from Long Iland, with Balla Cove two and a half lengths back in third. On 27 July, Be My Chief was stepped up to Group Three level for the Lanson Champagne Vintage Stakes at Goodwood Racecourse. Starting at odds of 8/15, he led from the start, accelerated into a clear advantage two furlongs from the finish and held on to win by half a length and a length from Robellation and Dashing Blade. In his next two races, Dashing Blade won the National Stakes and the Dewhurst Stakes. Only two horses, Balla Cove and Robellation, appeared to oppose Be My Chief when the colt started 1/3 favourite for the Solario Stakes at Sandown Park Racecourse on 18 August. Be My Chief recorded his fifth consecutive victory, but had to be hard ridden by Cauthen to prevail by three quarters of a length from Robellation. On his final race of the season, Be My Chief was stepped up to Group One level for the Racing Post Trophy over one mile at Newcastle Racecourse on 28 October. The event had been previously known as the William Hill Futurity and was being run for the first time under the sponsorship of the Racing Post. It had been transferred from its traditional venue at Doncaster Racecourse after the St Leger meeting in September had been abandoned owing to the poor state of the ground at the Yorkshire course. His four opponents were the Qathif, Cutting Note, Baligh and Loch Fruin, none of whom had previously contested a Group race. Starting the 4/7 favourite, he led from the start, accelerated in the final furlong and won by four lengths from Baligh.
1990: three-year-old season
Be My Chief suffered from a series of training problems in the early part of 1990 and missed both the 2000 Guineas and The Derby. He eventually reappeared in the Scottish Classic over ten furlongs at Ayr Racecourse on 12 July and started the 2/1 favourite in a seven-runner field. He led until the last three furlongs but then quickly faded and finished tailed off in last place, more than twenty-five lengths behind the winner Husyan.
Stud record
Be My Chief was retired from racing to become a breeding stallion. He was initially based at the National Stud before standing in Sweden and Poland. His two most successful runners, however, had their biggest wins in North America: Hail The Chief won the Hawthorne Gold Cup whilst the racemare Donna Viola won the Yellow Ribbon Stakes and the Gamely Stakes. His other good winners included Flying Squaw a filly who won the Moet & Chandon-Rennen. He died in 2006 at the age of nineteen.