Matt Fryatt scored a goal in each half as Leicester claimed their first league victory over Blackpool in 43 years.
Blackpool's Keith Southern saw a hooked shot rebound off a post before Fryatt slotted through Paul Rachubka's legs after Richie Wellens' quick free-kick.
Charlie Adam levelled - playing a one-two with Jason Euell before tapping in.
But, after Matt Oakley's free-kick hit a post, Fryatt capitalised on a mis-kick from Neal Eardley and rounded Rachubka before lashing the ball home.
Leiciester manager Nigel Pearson: "I've never questioned if Matty Fryatt can do it at this level, but I've never had any doubts he can score at any level.
"You get less chances the higher you go, so two goals from him today speak for themselves.
"I'm delighted with the win, this was a potential banana skin because they've had a decent start to the season. You have to make sure if you are not at your very best you are still winning games, and I think that was the case today."
Blackpool manager Ian Holloway: "I felt we didn't pass the ball as well as we have been doing. We started well, then lost our shape.
"The two goals we conceded were very poor. The first goal was a schoolboy error, we should have been more switched on.
"The second was a long ball from their keeper, our centre-half spewed it and Matty Fryatt says 'thank you very much'."
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