Clark doubles the lead
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The first of seven races will begin at 5:45pm, and 76 horses are competing. The UK's top female jockey is amongst the competitors.
Thousands of people are expected to flock to Brampton to catch a glimpse of the colourful breed, which is more common in warmer climates.
More than 120 young athletes are taking part in this year's Borders Sport and Leisure Sports Academy.