[1] Some of the systems in operation or being developed include: Tully Runner’s, Travis Landreth’s running analysis, and ON COURSE RATING SYSTEMS
[2] Research grant funded since 2002, ON COURSE RATING SYSTEMS, or OCRS (patent pending) scientifically measures and rates the length and difficulty of cross country courses so coaches and athletes can objectively compare performances on courses of varying difficulty. To learn more about OCRS and how it measures courses, go to
[3] Currently there are no guidelines for measuring cross country courses.