MONTREAL :Oscar Piastri could stand alone after Sunday's Canadian Grand Prix as the only Australian to win six or more races in a single Formula One season, but the 24-year-old has bigger and better statistics in his sights. Only Jack Brabham and Alan Jones, world champions both, won five in the same year although their tallies reflect the fact that there were far fewer races then to a campaign than the current record 24. Piastri, who leads McLaren teammate Lando Norris by 10 points in the