London's Olympic Stadium witnessed its first world record on Tuesday when British wheelchair racer Hannah Cockroft set a new mark in the T34 category for 100m.

Competing at a Paralympic test event just days after the official opening of the 80,000-seat venue, the 19-year-old world champion stopped the clock at 18.56 sec.

Ireland's Michael McKillop then became the first male to set a world record on the track when he slashed 15 sec off his own record in the T37 category 1,500.