A Rules for Foot Orienteering Events - Orienteering USA

A.17.10 Courses shall be set so that swimming will be neither necessary nor
tempting as a route choice.
A.17.11 Control Proximity
A.17.11.1 Controls shall be separated by a minimum of 30 meters on features that are
distinctly different in the terrain and on the map (15 meters for map scales
1:4000 or 1:5000).
A.17.11.2 Controls shall be separated by a minimum of 60 meters on similar features (30
meters for map scales 1:4000 or 1:5000).
A.17.12 Course Length and Climb
A.17.12.1 The course length shall be measured without regard for elevation change as the
shortest possible route a runner could fairly take - i.e. around lakes and
impassable and out of bounds areas as well as following any compulsory
marked routes.
A.17.12.2 The expected winning time for an orienteer with a ranking score of 100 (or the
average of the top three ranked US orienteers in the classes assigned to a
course) shall be decisive in determining course lengths. For all formats it is
desirable to design the best course possible within the given time range, rather
than striving for the exact middle of the time range.
A.17.12.3 The course climb shall be measured as the climb in meters along the optimum
route.
A.18 Sprint
A.18.1 Definition
A.18.1.1 EMPHASIS: Sprint format emphasizes high speed orienteering.
A.18.1.2 COMPETITON: Sprint races are individual competitions.
A.18.2 Course/Class structures
A.18.2.1 Sprints shall have three or more courses with the standard Orienteering USA
classes spread reasonably among the courses offered. When offering the
standard class structure, the sprint format must be available to all advanced
level classes. Courses for White/Yellow/Orange may be sprint or an
alternate format, clearly stated in the event announcement.
A.18.2.2 The Sprint format will be included in the United States Individual Orienteering
Championships event.
A.18.3 Technical Rules