1911: two-year-old season Tagalie showed some promise as a juvenile in 1911, despite not appearing on a racecourse until October. She won the Boscawen Post Stakes and was then sent to
Newmarket for the
Cheveley Park Stakes, the most important race of the season for British two-year-old fillies, in which she finished third to Belleisle. On her third and final start of the season she ran unplaced in a race at Sandown.
1912: three-year-old season On her three-year-old debut, Tagalie was sent straight for the 1000 Guineas on May 3 for which she started a
20/1 outsider. Ridden by the
New Zealand jockey
Les Hewitt she led from the start and won by one and a half lengths from Alope, with Belleisle third. Her winning time of 1:39.6 was the second fastest recorded up to that time. In the Newmarket Stakes on May 15 she proved herself capable of racing against colts when overcoming interference to finish an unlucky second to Cylgad. As Hewitt was already committed to ride another horse in the Derby, Tagalie was ridden at
Epsom on June 5 by the American
Johnny Reiff. She started at odds of 100/8 in a field of twenty, in front of a large crowd which included the
King and
Queen. As at Newmarket, she led from the start, opened up a clear lead and was never in any danger. Reiff was even able to give the filly a "breather" by four lengths from Jaeger and
Tracery. Two days later she started a "red-hot favourite" at odds of 1/2 for the
Oaks, despite rumours that she would miss the race. On this occasion she was held up in the early stages by her new rider George Stern The only explanation offered was that she was unsuited by the state of the ground which had been softened by heavy rain since the Derby. Tagalie never recaptured her Derby-winning form. Her meeting with the
Ascot Gold Cup winner
Prince Palatine in the
Eclipse Stakes at
Sandown on July 19 was anticipated as the potential "race of the season", but the filly ran poorly and was unplaced. Once again, there were some attempts to excuse her performance by claiming that she was unsuited by the soft ground, although another view was that her lack of stamina, which had not been truly tested in the Derby, had now been exposed. In an attempt to redeem her reputation and win an unconventional
Triple Crown, Tagalie was sent to
Doncaster in September for the
St. Leger Stakes, but made no impression in finishing unplaced behind Tracery. She was then retired to stud, having earned £11,200 in her three-year-old season. ==Assessment==