In Ludum, if you are rowing coach, you are able to set your own custom Gold Medal Time's for each rowing boat type. By default we use the world best times as the current GMTs.
To change your clubs GMTs you must have the permission to change the GMTs, if you don't have these please contact the Club Manager of your club.
Click on the arrow next to your profile image.
Here you will see an "edit" next to your club.
This will open up a page with your club details, select GMT in the tabs.
You will now be shown each boat type and status type.
You can also change the intensity distribution which is used for when GPS data is imported for boats.