Corey Crawford made 28 saves, and Andrew Shaw scored the only goal as the Blackhawks stretched their NHL-record, season-opening point streak to 18 games with a 1-0 victory over the Columbus Blue Jackets on Sunday night.Crawford earned his seventh NHL shutout and second this season in his first start since Feb. 12. He outdueled Columbus’ Steve Mason, who stopped 26 shots.Shaw provided all the offense in the second period for Blackhawks (15-0-3), who haven’t lost in regulation time this season and have earned 33 of 36 possible points. The Hawks have won nine straight against Columbus, dating to Feb. 18, 2011.The Blackhawks set the league record with at least one point in the first 17 games of a season when they beat San Jose 2-1 on Friday – topping the 2006-07 Anaheim Ducks, who started 12-0-4.