**2017 Big D Marathon Cancelled Due to Weather**
The Big D Marathon course has long stretches that are flat; however, there are some hills especially between miles 10 and 22. After the late hills, it is downhill to the finish.
The race can be challenging since the Dallas weather in April can be warm. With the likelihood of warm or hot weather, coupled with a rolling course, a PR or qualifying for the Boston Marathon may be difficult.
Rankings will be listed for 2018 at the end of the year.
In 2016, 4.7% of finishers qualified for the Boston Marathon.
It ranks th in the U.S. in the percentage of finishers achieving Boston Marathon qualifying times in 2016.
Its Course Score of 98.31 ranks it as the th fastest marathon course in the U.S. and the th fastest course in Texas.
The typical race time temperature and humidity levels are above the ideal range for optimal marathon performance. This, coupled with the Course Score, gives the Big D Texas Marathon a PR Score of 97.43. This PR Score ranks it as the th fastest marathon in the U.S. and the th fastest in Texas.
Learn more about PR Scores and Course Scores on the FAQ page.