To log your myathlon times, goto https://raceid.com/

Click on sign in

Use the details you used when you signed up for the event

You will now see the home page again. Click on your profile pic on the top right of the screen. 

You will see the events you have signed up for it will say full, swim, bike or run on the line abovr "log result"

Ignore the full race. Log your times in the swim, bike and run sections by clicking on log results and entering a time. 

Or if you get stuck you can email your times to iainmacivertodd@gmail.com and I'll add them for you.