The Brumbies have extended their unprecedented winning streak against Australian Super Rugby opposition to 10, with a 43-10 thrashing of the Queensland Reds.
The six-tries-to-one drubbing gave the Canberra-based franchise a bonus point to increase their lead at the top of the Australian conference.
After a sixth-straight defeat, the Reds' season hangs in the balance as their shocking away record continues to hurt them.
A second-half blitz from the Brumbies set up the victory with two converted tries in the first five minutes after the break setting the tone as they went on to pile on 33 unanswered points.
Hooker Robbie Abel scored a try immediately after half-time before a lucky bounce helped fullback Aidan Toua to run more than half the field to score under the posts.
Tries from Jarrad Butler, James Dargaville and Chris Alcock completed the rout against a hapless Reds defence.
The match was in the balance at half-time with a James Tuttle penalty goal levelling the scores at 10-all after the siren.
But the 20-year-old halfback, who was promoted to the Reds' starting line-up after coach Nick Stiles dropped Nick Frisby, had earlier cost his side with two missed shots on goal.
The Brumbies victory came at a price with centre Kyle Godwin (broken hand) and back-rower Jordan Smiler (hamstring) suffering match-ending injuries.
They will get the chance to win another derby next week when they face the struggling Rebels in Melbourne, while the Reds host the Kings in Brisbane.
Stiles said he was "shell-shocked" after the loss which he described as gut-wrenching.
"At half time we were in the change rooms feeling really confident about where we were positioned in that game," Stiles said.
"But then came out and they scored within the first couple of minutes.
"To give up a soft try directly after that really killed us and knocked us around mentally."
Brumbies coach Stephen Larkham said his side was able to convert their opportunities in the second half to showcase their attacking prowess.
"The crowd would have enjoyed that," Larkham said.
"Not everything we touched turned to gold, but there were opportunities where the ball went to deck and we were the first guys to pick it up which made a massive difference."
