You will need to follow this link to log into your RunSignup account, https://runsignup.com/Profile
In your Upcoming Events find the Why Not Tri and select "Manage Registration".
You will be brought to your Why Not Tri Registration information page. Here you will select "Questions" in the above menu bar.
Once you are on the Question management page, you will then update all of your question responses and select "Update Responses".