First, be sure to check your spam folder to ensure it didn't end up in there. (Be sure to add @ruggedraces.com and @runsignup.com to your safe sender's list to ensure all of our emails arrive safely in your inbox.)
For US events, simply log into your account, go to your profile in the top right corner, and under “Upcoming events,” simply click: Resend Confirmation.
For Canadian events, if you're registered, simply log into your account, where you can view your orders and click "Print" to view a copy of your receipt that is identical to your confirmation email. If you forget your password or didn't create a password when logging in, simply click 'Forgot Password' prior to logging in to change or set your password.