As a contest participant, you can change your own password through the password reset link at the contest site.
The password reset link can be located by clicking the Sign In button at the upper right-hand corner of the Home page of the contest site.
Enter your email address (see blue box), and then click Continue:
Click Forgot Your Password (see blue box):
Then, enter in your email address and click Recover Password:
💡 The temporary password reset link expires after 24 hours. If you click the link after 24 hours has lapsed, you will be taken to a screen to request a new password reset link.
If you don't want to reset your password, you also have the option (on the previous screen) to email a one-time code to sign-in:
💡 The six-digit codes expires after 60 minutes. If you click the link after 60 minutes has lapsed, you will be taken to a screen to request a new password reset link.