2025 Schedule. These dates are subject to change. Printable Schedule « All Events Sierra Warm-Up – Oatfield MX – DOUBLE POINTS April 11, 2027 « South National – Honolulu Hills MX Sierra National – Oatfield MX » Add to calendar Google Calendar iCalendar Outlook 365 Outlook Live Details Date: April 11, 2027 Organizer Sierra OTHG View Organizer Website Venue Oatfield Mx 12801 Looney Rd Snelling, CA 95369 United States + Google Map Printable Schedule – Click Here