Complex sentence: The top 100 finalists from each age group (Primary, ages 7-10, Junior, ages 11-14 and Senior, ages 15-18) advanced to the National Contest in Washington, D.C. on November 5--6,2009.
Split into simpler sentences: The top 100 contestants from each age group (Primary, ages 7-10, Junior, ages 11-14 and Senior, ages 15-18) advance to the National level. In 2009, the national level was held in Washington, D.C. on November 5--6,2009.