Having started woefully and given their vistors a 2 goal start Keith Hill's side rallied in the second period but couldn't find a way through a determined Bury rearguard so yet again it is the away side that wins the derby in this particular area of Lancashire.
Not suprisingly having done so well on their travels at Shrewsbury and Darlington the home side was unchanged but in the opening minutes they were like strangers, giving the ball away cheaply and leaving alrming gaps at the back.
As early as the 1st minute former Bury man Tom Kennedy did brilliantly to block Andy Bishop's effort after former Dale triallist had wriggled into the box.
If that was a warning it wasn't heeded a minute later as a simple header found a gap as wide as the M62 in the home rearguard and Mangan raced into it before slamming the ball past the onrushing and unprotected James Spencer.  
If that was bad start it got worse on 12 minutes as Lee Bullock dispossed John Doolan far too easily fed the ball to the always lively Nicky Adams who got lucky seeing his underhit shot take a massive deflection off Kelvin Lomax to completely wrongfoot Spencer as it rolled into the net.
After 20 minutes or so, without actually flowing the homeside managed to steady the ship and began to make chances as Glenn Murray saw his header from an Adam Rundle cross saved and his shot from a LeFondre cross go narrowly wide. after a spot of head tennis leFondre saw his byicycle kick go narrowly wide and just before the break Murray hit the side netting from 12 yards when perhaps he should have done better. 
Manager Keith Hill made changes at half time bringing on Kallum Higginbotham and Rory Prendergast for Ben Muirhead and Adam Rundle and the performance was better and might on another day have seen a complete turnaround.
In the early moments of the half Murray steered an effort agonisingly wide and LeFondre saw his header from a corner cleared off the line by Dave Challinor.
Then on 58 minutes Bury keeper Jim Provett made a spectacular save to keep out a 35 yard rocket from Lomax.
Deservedly Dale reduced the deficit on 61minutes, having pinned Bury back Kennedy crossed from the right and Rory McArdle rose highest to head past Provett from 8 yards. Game on.
Bury should have put the game beyond Dale on 69 minutes as substitute Glynn Hurst looking offside was allowed a run on goal and lobbed the advancing Spencer and the frame of the goal.
The final minutes as indeed most of the second period was a case of one way traffic and Bury defending as if their lives depended on it and the nearest we saw to an equaliser despite the non-stop pressure was another McArdle header and a driven croos by LeFondre that flashed acxross the face of goal.
For now the local bragging rights have headed off down the A57.