Saturday saw para-triathletes from all over the world compete in races across a number of categories and age groups. Amateur participants, many of whom were from local triathlon clubs, also competed on Saturday and on Sunday morning before the course is cleared to make way for the elite men's and women's races on Sunday afternoon, which will feature the world's best professional triathletes. Here are the best pictures so far:
7. Melissa Reid during the cycling stage
Melissa Reid (left) and guided during the cycling stage of the AJ Bell 2021 World Triathlon Para Series race in Roundhay Park, Leeds. (photo: PA Wire/ Danny Lawson)
8. Dave Ellis wins the PTV1 Men's event
Dave Ellis (left) with guild after winning the PTV1 Men's event during the AJ Bell 2021 World Triathlon Para Series race in Roundhay Park, Leeds. (photo: PA Wire/ Danny Lawson)
9. Dave Ellis in the cycling transition zone
Dave Ellis in the cycling transition zone during the AJ Bell 2021 World Triathlon Para Series race in Roundhay Park, Leeds. (photo: PA Wire/ Danny Lawson)
10. Chris Hammer
Chris Hammer pours water over himself during the running stage of the AJ Bell 2021 World Triathlon Para Series race in Roundhay Park, Leeds. (photo: PA Wire/ Danny Lawson)
11. Claire Cashmore celebrates silver
Claire Cashmore celebrates winning silver in the PTS5 Women's event during the AJ Bell 2021 World Triathlon Para Series race in Roundhay Park, Leeds. (photo: PA Wire/ Danny Lawson)
12. Michael Taylor crosses the line
Michael Taylor crosses the line during the AJ Bell 2021 World Triathlon Para Series race in Roundhay Park, Leeds. (photo: PA Wire/ Danny Lawson)