She is from the sixth crop of foals sired by Deep Impact, who was the Japanese Horse of the Year in 2005 and 2006, winning races including the Tokyo Yushun, Tenno Sho, Arima Kinen and Japan Cup.

[6] On her track debut, Sinhalite contested an event for previously unraced juveniles over 1600 metres at Kyoto Racecourse on 10 October 2015 and won from Oken Believe and thirteen others.

[9][10] On 22 May Sinhalite was stepped up in distance for the Yushun Himba over 2400 metres at Tokyo Racecourse and, with Jeweler sidelined by injury, she started a strong favourite against seventeen opponents.

The favourite raced towards the rear of the field and the outsider Dantsu Pendant set a steady pace and still had a great deal of ground to make up on the final turn.

Sinhalite wove her way through the field before finally obtaining a clear run in the last 50 metres and won by a neck and half a length from Cecchino and Biche.

[12] After a summer break of almost four months, Sinhalite returned to action in the Rose Stakes (a major trial for the Shuka Sho) over 1800 metres at Hanshin on 18 September.