Shane Lowry made an early dash for the airport when he opted to retire after just one round of the US Open International Section Qualifier at Walton Heath. Picture at Wentworth last weekend by Fran Caffrey/www.golffile.ieShane Lowry needs a big week at the Memorial Tournament in Ohio this week to qualify for the US Open after opting to retire after an opening 75 in the International Sectional Qualifier at Walton Heath.