ICO
Mt Hood Orienteering Mt Hood Orienteering
Middle Distance NRE Friday afternoon. One-day stand-alone event.
Classic NREs Saturday and Sunday. US Masters Champs and Southeastern Interscholastic Champs
Mal Harding Extreme-O Monday
GNC and Masters (Sat/Sun) awards based on two-day cumulative time.
SEIS Individual and Team awards based on Sat/Sun point totals using OUSA Rules of Competition scoring formula.
Early registration is open Dec 1, 2025! Register early and save.
Regular registration begins Jan 2, 2025 at 6am EST with increased fees.
Late registration begins Jan 9, 2025 at 6am EST with even higher fees.
Registration closes Jan 13, 2025 at 6am EST.
Sign up for Fri/Sat/Sun or Fri/Sat/Sun + Extreme-O, and save $$$
Pick-your-own desired start time windows available for Friday, Saturday, and Sunday races.
SEIS competitors - Please see the GNC 2025 website (GNC 2025 SEIS Rules) for eligibility and other questions before registering. Please disregard references and links to OUSA US Championships rules within the Event Register registration system.
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