Leon Cort's second-half goal earned Championship leaders Stoke a point.
After a traffic accident caused the kick-off to be delayed by 30 minutes, Stoke started well and Mamady Sidibe headed against the Blackpool post.
But Ben Burgess dispatched a 20-yard drive which appeared to take a slight deflection off Cort on the way past Stoke goalkeeper Carlo Nash.
Stoke equalised when Paul Gallacher's corner was headed on by Chris Riggott and Cort applied the finish.
Stoke boss Tony Pulis on referee Mike Pike after his late arrival forced kick-off to be delayed by 30 minutes: "It's a serious lack of professionalism by the referee.
"I am amazed. He chose to travel down the busiest road in the country on the day of the game during a holiday period. It is astonishing.
"I had to drag my players in from the warm up, we were all sitting around for
half an hour, and then I had to send them out again."
Blackpool boss Simon Grayson on the disruption caused by their late arrival: "I can understand Stoke's frustration but we started off from Blackpool at 10am for a 75 minute journey and it took over four hours.
"I told the players I wouldn't accept our problems as an excuse for a poor performance - they rallied to the call.
"It was a very good point and we could have got all three."
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