I wish there were, but no.
There are shows that have hand work categories. The International Quilting Association show at Houston is one - they have a category for hand quilting, and for handmade quilts. The American Quilters Society show in Paducah has hand quilting categories, but their other shows do not.
Some shows do sponsor ribbons for hand work or hand quilting. The Vermont Quilt Festival is one, as are the Mancuso shows that you've entered. So does Quilt Odyssey in Hershey, Pennsylvania. Most local quilt shows will have a ribbon for hand quilting, too.
While it's sad not to see many hand quilted entries, it does make it easier to win. :)
Janet