The Dallas Marathon (formerly the Dallas White Rock Marathon) is Texas' oldest marathon and has taken place each December in Dallas, Texas since 1971 (with the exception of 2013 due to winter storms). An official time from the Dallas Marathon can be used to qualify for the Boston Marathon. The course begins & ends in Downtown Dallas and features iconic neighborhoods and White Rock Lake along the way. In recent years, race weekend has included the Mayor's Race 5K, a 5-person relay, and a half-marathon in addition to the traditional marathon race. read more