OKLAHOMA CITY (AP) — Organizers of the Oklahoma City Memorial Marathon say they are changing the race's course to reflect development of new public projects in the downtown area.

Race officials said Wednesday that the 18-year-old marathon has outgrown its traditional space and will expand the race and its finish line south of the downtown area to reflect development of a new streetcar system and a downtown park.

The race will begin at its traditional start line outside the Oklahoma City National Memorial & Museum. But, beginning next year, the finish line will move southwest from its current location in the eastern downtown area.

It will move further south in 2020 following completion of the new Scissortail Park. This new finish line will allow runners to compete along one of the widest corridors downtown.