The Boston Celtics are running out of time to catch the Toronto Raptors for the number one seed in the Eastern Conference but they boosted their chances with a 110-99 victory in the NBA on Saturday. Boston broke open a close game late to win at TD Garden and pull within two games of the first-placed Raptors. The Celtics trailed the Raptors by five games on March 19, but have now won six straight to tighten up the race in the east.