London 2012 round-up: Ireland's Olympians in impressive form

Ireland's Olympians are producing some phenomenal performances today at London 2012.

Annalise Murphy continues to dominate in the women's Laser Radial class at the Sailing. The 22-year-old Dubliner has won all four of the races so-far this week in Weymouth, following-up yesterday's two wins by winning races three and four today.