Get near-by cordinates with google mas

It all depends, do you want to use a radius to locate all clubs, or do you want to use distance via roads?
If you want to use a radius, there is the Haversine formula. Otherwise, you can use the Google Maps Distance Matrix API.
Haversine - https://github.com/jdjkelly/jQuery-haversine
Google Matrix https://developers.google.com/maps/documentation/distance-matrix/intro?hl=en