The Chiefs survived a tremendous scare from the struggling Blues at North Harbour Stadium before posting a 41-34 Super Rugby win.
The Blues unleashed some of their most positive play of the campaign, forcing the table-topping Chiefs - led by four tries from wing Asaeli Tikoirotuma - to fight for a gutsy win. Rene Ranger provided a timely reminder of the explosive qualities he possesses when a 60-metre solo run from the base of a ruck saw him break three tackles and set up a thrilling finish with 15 minutes remaining and the scores locked at 34-34.
The Chiefs capitalised on a turnover late on and the ball was moved quickly across the backline. Full-back Robbie Robinson, beaten hands down moments earlier by Ranger, then kicked through and Tikoirotuma outran full-back Rudi Wulf to score his fourth try of the night.
The Waratahs, meanwhile, slumped to a sixth straight loss after a shocking 33-12 defeat to the Hurricanes at Allianz Stadium in Sydney.
It was the first time in Super Rugby that the Waratahs have lost six consecutive games as poor ball control cost them dearly in wet conditions.
The Lions registered their first win over the Sharks in over a decade as they came out of an enthralling encounter in Johannesburg with a shock 38-28 win.
Not since their 26-25 success under the name of the Cats in 2001 have the South African side got the better of their domestic rivals, but they did so on Saturday, scoring four tries and Elton Jantjies booting 18 points.
Bryan Habana returned to haunt his former side with a late try as the Stormers battled back to clinch a 19-14 victory in a hard-fought battle between the two high-flying South African rivals at Loftus Versfeld.
Springbok winger Habana, who spent four years with the Bulls before joining the Stormers in 2009, went over with eight minutes left to help his side claim their 11th win in 13 matches and stay hot on the heels of Super 15 leaders the Chiefs.