The defending champs, the Crusaders, have taken charge of the Super 14 rugby competition with three rounds to go.
They beat the Highlanders 38-3 on Saturday while former competition front runner, the Blues, were knocked back 32-25 by the South African side, the Sharks.
Both the Crusaders and Blues have 37 points but the southern franchise has four more bonus points.
The Sharks are third, three points back, while the Chiefs have shifted into fourth place.
They beat the Western Force 64-36 with big winger, Roy Kinikinilau, and replacement half back, Brendon Leonard each scoring a brace of tries.
The Bulls, Hurricanes and Warratahs also had eleventh round wins