St Leger Stakes Crown, which begins with the 2000 Guineas and continues with the Derby. It also completes the Fillies' Triple Crown, following on from the 1000 Guineas and the Oaks. The St Leger has rarely featured Triple Crown contenders in recent decades, with the only one in recent years being the 2012 2,000 Guineas and Derby winner Camelot, who finished second in the St Leger. The event was devised by Anthony St Leger, an army officer and politician who lived near Doncaster. It was initially referred to as "A Sweepstake of 25 Guineas", and its original distance was two miles. The rules
Gunner B offered at odds of 8/1 for the St Leger Stakes. He then produced a creditable effort in defeat in an on mile handicap at Beverley, finishing third under a weight of 141 pounds. When Gunner B contested the Gordon Stakes, a recognised St Leger trial at Goodwood however, he ran poorly and finished last of the six runners. Gunner B bypassed the St Leger, running instead in the Doonside Cup over eleven furlongs at Ayr Racecourse in which, ridden by Mercer, he was required to concede weight to older horses including Patch (Great Voltigeur Stakes), Rymer (Brigadier Gerard Stakes) and