Thousands of athletes will hit the ground running for the 2014 Chevron Houston Marathon and Aramco Houston Half Marathon (& 2014 ABB 5K). There are a few course changes that should make for more prime spots from which to watch the race. Runners from around the world compete in the races of varying distance. At stake is a $40,000 first-place payout for each of the men’s and women’s champions. A total of $259,000 in guaranteed prize money will be awarded to the top finishers.