Abstract: An umbrella clamp that includes an adjustable, flexibly-resilient clamp having a cam lever, the clamp detachably secured around an umbrella post, the clamp further includes a flange and anchor assembly, and one or more shock absorber elements. The clamp includes a flange with a series of holes, each of the holes are configured for securing one end of a cable, the opposing end of the cable is affixed to a weighted article (such as a bag filled with sand) and one or more friction pads disposed along the inner surface of the clamp body.