Match ends, Rochdale 2, Peterborough United 0.
Rochdale beat Peterborough with goals either side of half-time from Callum Camps and Reuben Noble-Lazarus.
Camps slotted home after Donal McDermott's pass fell to him to open the scoring early on.
Peterborough's best chances came before the break when Jon Taylor and Joe Gormley both tested the goalkeeper.
Dale secured the win when striker Ian Henderson found Reuben Noble-Lazarus who fired home as they beat the Posh for the first time since 2006.
Rochdale manager Keith Hill told BBC Radio Manchester:
"It's not a one game season by any stretch of the imagination and you don't know what to expect, but we've been preparing to play like that.
"I was pretty relaxed because I've got used to the fact it's a 46-game season no matter what happens on the first game.
"I'm really pleased with the performance but I'm really pleased with the lads, the fact that they're taking ownership of it now - I've got to trust my future in these players."
- 28CampsSubstituted forRoseat 79'minutes
- 7VincentiBooked at 90mins
- 12McDermottSubstituted forNoble-Lazarusat 67'minutes
- 39BunneySubstituted forAndrewat 63'minutes
- 3NtlheBooked at 44mins
- 7TaylorSubstituted forAndersonat 76'minutes
- 15AndersonSubstituted forCollisonat 79'minutes
- 11MaddisonSubstituted forCoulibalyat 84'minutes
- Andy Haines
- Shots on Target
Second Half ends, Rochdale 2, Peterborough United 0.
Corner, Rochdale. Conceded by Jack Collison.
Peter Vincenti (Rochdale) is shown the yellow card for a bad foul.
Attempt blocked. Ian Henderson (Rochdale) right footed shot from outside the box is blocked.
Foul by Peter Vincenti (Rochdale).
Kgosi Ntlhe (Peterborough United) wins a free kick in the defensive half.
Attempt saved. Jimmy McNulty (Rochdale) left footed shot from outside the box is saved in the bottom right corner.
Substitution, Peterborough United. Souleymane Coulibaly replaces Marcus Maddison.
Attempt missed. Michael Bostwick (Peterborough United) right footed shot from outside the box is high and wide to the right.
Substitution, Rochdale. Michael Rose replaces Callum Camps.
Substitution, Peterborough United. Jack Collison replaces Jermaine Anderson.
Attempt blocked. Kgosi Ntlhe (Peterborough United) right footed shot from outside the box is blocked.
Attempt missed. Calvin Andrew (Rochdale) right footed shot from the centre of the box is too high.
Substitution, Peterborough United. Harry Anderson replaces Jon Taylor.
Corner, Rochdale. Conceded by Ben Alnwick.
Attempt saved. Ian Henderson (Rochdale) right footed shot from the right side of the box is saved in the top right corner.
Attempt blocked. Calvin Andrew (Rochdale) right footed shot from the centre of the box is blocked.
Corner, Peterborough United. Conceded by Tom Kennedy.
Attempt missed. Jon Taylor (Peterborough United) right footed shot from the right side of the box is close, but misses to the left.