Abstract: In embodiments of route event mapping, a device has a display device that displays a map of a region, which includes a location of the device. A route event mapping service can receive an input of an athletic event course as a user input to the device, and obtain course data of the athletic event course, such as a course route, a course length, environmental conditions, and/or elevation data. The route event mapping service can then determine a training course within the region that includes the location of the device based on the course data. The route event mapping service can also map training segments of the training course that approximate segments of the athletic event course, where the training segments are mapped within the region that includes the location of the device. The mapped training segments can then be displayed in the map of the region.