The Seasiders ended Oldham's nine match winning streak with a gutsy performance and a fine goal from young winger, Lewis Gobern.
The teenager, on-loan from Wolves, struck three minutes after half time with a 20-yard effort at the end of a jinking run, which capped his best performance since coming to Blackpool back in November.
In typical January conditions Oldham made marginally the better start and should have gone ahead on 10 minutes when Stefan Stam's far post header trickled along the goal line before inching just wide.
At the other end of the pitch, a misplaced pass by Richie Wellens allowed Keigan Parker to hit a long-range effort which inched just wide of the post.
Blackpool kept old-boy and Latics dangerman Wellens in check for most of the game and the playmaker struggled to get on the ball for much of the second half. And memories of the midfielder's Bloomfield Road days came flooding back when he picked up a pointless booking for dissent late in the second half.
It wouldn't be Blackpool without a few last minute traumas and Oldham pressed hard after throwing on three substitutes, including another old boy, David Eyres.
But the 42-year-old winger and his colleagues just couldn't find a way past a Blackpool defence which looks like it has found some much-needed resolve.
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