Quincy Wilson eyes relay gold after becoming US’s youngest track athlete

• Sixteen-year-old basks in amazing moment' after run
• GB's men and women both reach the 4x400m finals

Quincy Wilson had a day to remember as the 16-year-old became the United States' youngest ever track and field Olympian. And while he admitted afterwards that he wasn't 100% myself," he was delighted to be part of a US 4x400m relay team that remain gold medal favourites in Saturday's final.

It was an amazing moment," said Wilson, whose stunning performances this year have taken him from being a high schooler in Chesapeake, Virginia, to these Games. I had my family - mom, dad, sister, grandma, her sisters and a lot of family - in the stands. I wasn't 100% myself but my team came out here and did it for me."