It also turned out to be the highest successful run-chase ever in the history of the tournament with the previous best being 313 by Sri Lanka against Zimbabwe at New Plymouth in 1992.
Ireland, who earned the tag of giant-killers after ousting Pakistan from the previous edition chased a stiff target 328 in 49.1 overs courtesy an unbelievable 113 off 63 balls (13x4, 6x6) from O'Brien. No praise will be enough as Ireland were down in the dumps tottering at 111 for five when O'Brien and Alex Cusack came together.
Image: Ireland's Andrew White celebrates his team beating England by three wickets during the Cricket World Cup match between England and Ireland in Bangalore, India, Wednesday, March 2, 2011.
Scorecard | World Cup 2011