Load up on unlimited pancakes for $10 this weekend at Boston diner

Marathon runners (and spectators) can carb-up on a budget this weekend at one diner in Boston .

South Street Diner will serve up all-you-can-eat pancakes for $10 on Sunday.

Diners can get an affordable, carb-heavy meal from 4-11 p.m. on April 20.

The pancake promotion comes a day before the 129th Boston Marathon on Monday, April 21.

Even after the race, South Street Diner welcomes athletes and attendees to indulge in a post-marathon meal.

The restaurant is open 24 hours and is located at 178 Kneeland St., Boston.

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