Heavy rain that created visibility problems for drivers and slick conditions for cars forced postponement of Saturday's scheduled IndyCar race at Toronto by a day. The race, the first IndyCar event to be postponed due to bad weather since Sao Paulo in 2011, will be staged as part of a double-header Sunday along with the weekend's other planned event, creating a crucial day in the hunt for the season points title. Brazil's Helio Castroneves leads with 471 points, just nine ahead of Australian Will Power with American Ryan Hunter-Reay, the Indianapolis 500 winner, third at 32 points adrift. Power crashed in a warm-up lap and the pace car spun as officials tried in vain to start the race on rain tires. More...