The Blues held off a late challenge from the Hurricanes to consolidate top spot on the Super Rugby table with a 17-11 victory in Wellington on Friday night.
The Blues threw up some desperate defence as the home side rallied in the dying minutes, only sealing the game when Hurricane halfback Tyson Keats dropped the ball crossing the tryline after the siren.
The win was enough to put them five points clear of the South African leaders the Stormers, who face a tough task against the in-form Crusaders in Cape Town on Sunday.
It also gave the Blues their second victory of the season over the under-performing Hurricanes after they won the New Zealand derby 41-17 in mid-March.
The Wellington based side lie ninth in the table with only three wins for the season and could slip further if thr weekend's result do not go their way.
The Hurricanes face the Highlanders next week, while the Blues line up against the high-flying Queensland Reds.