The Rebels ended the Western Force's five match winning streak when they beat the Perth-based Super Rugby franchise 22-16 in Melbourne.
The result takes the Rebels to a record of played eight in 2014, won three and lost five. The loss for the Force was their third from eight matches.
The Force, who beat the Rebels 32-7 in Perth in the fourth round, were trying to win in Melbourne for the first time since 2011.
Winger Nick Cummins scored a try for the Force after the siren sounded to give them a bonus point for finishing within seven points.
The Rebels made amends for their early-season humiliation at the hands of the Force and stopped the Perth franchise's surge at five successive wins.
It was Melbourne's third win and was much needed after back-to-back losses in New Zealand and with the bye next round.
They did it the hard way, dominating the first half everywhere except on the scoreboard with the teams locked at 6-6 at halftime.
The Rebels had 62 per cent of possession, a massive 502 run metres compared to the Force's 207 and made only 39 tackles compared to 96 for the visitors.
They didn't get across the tryline until the 61st minute, relying on the boot of fullback Jason Woodward kicking penalties.
That try came after skipper Scott Higginbotham took the ball from the back of their scrum and charged over.
The Melbourne scrum earned bragging rights over their rivals while lock Luke Jones continued to push his claims for a Wallaby call-up, making a game-high 16 runs.
The Force, missing halfback Alby Mathewson (ankle), lock Sam Wykes (rib) and winger Luke Morahan (hamstring), also struggled to bag a five-pointer with five-eighth Sias Ebersohn keeping them in the game.
They hammered hard early in the second half, getting within centimetres of the tryline but the home side's defence held up and they ended up taking three points for a ruck penalty.
The Force looked out of steam on the back of their winning run, which included the scalp of the Waratahs last round.
Higginbotham's converted try extended their lead to 19-6 and the early workload started to take its toll on both sides with the error toll mounting.
Woodward brought his personal toll to 17 points - five penalties and a conversion - before Force winger Nick Cummins crossed after the siren to ensure an all-important bonus point.
Final Score Rebels 22 (6) Force 16 (6)
Tries - S.Higginbotham
Pen - J.Woodward 5
Con - J.Woodward
Cards - T. Ellison
Tries - N. Cummins
Pen - S.Ebersohn 3
Con - Z. Holmes
Referee: Andrew Lees
Assistant Ref 1: Steve Walsh
Assistant Ref 2: Angus Gardner
TMO: Steve Leszczynski
1. Toby Smith,2. Shota Horie,3. Laurie Weeks,4. Cadeyrn Neville,5. Luke Jones,6. Colby Fainga'a,7. Scott Fuglistaller,8. Scott Higginbotham (C),9. Nic Stirzaker,10. Bryce Hegarty,11. Tom English,12. Mitch Inman ,13. Tamati Ellison,14. Male Sau,15. Jason Woodward
Replacements : 16. Pat Leafa, 17. Cruze Ah-Nau,18. Paul Alo-Emilie,19. Hugh Pyle,20. Sean McMahon,21. Luke Burgess,22. Tom Kingston,23. Angus Roberts
1. Pek Cowan,2. Nathan Charles,3. Kieran Longbottom,4. Adam Coleman,5. Wilhelm Steenkamp ,6. Angus Cottrell,7. Matt Hodgson (c),8. Ben McCalman,9. Ian Prior,10. Sias Ebersohn,11. Nick Cummins ,12. Kyle Godwin,13. Marcel Brache,14. Patrick Dellit,15. Dane Haylett-Petty
Replacements : 16. Heath Tessmann,17. Tetera Faulkner ,18. Ollie Hoskins,19. Phoenix Battye,20. Brynard Stander,21. Justin Turner,22. Zack Holmes ,23. Chris Tuatara-Morrison