If you would like to end a round in GPS+Track or PRO mode prior to playing the 9th or 18th hole or if you are finishing on a hole other than the 18th (a shotgun start format for example) then there are a couple of options. Please follow the steps below:
1) When you are ready to end your round press the menu button top left. Then press the bottom right button until you reach the 'End Round' option, then press the top right button to confirm this.
In terms of using the device in a shotgun start there a couple of different options that you can use to make sure that it registers as a normal 18 hole round. Firstly when you get to the 18th hole and it asks if you wish to end your round you can navigate back to the yardage screen by pressing the top left button You will then be able to scroll to hole 1 and continue your round.
Alternatively, you can choose to end your round on the 18th when prompted and then start a new round on the first hole this will continue giving you the correct yardages. When you upload the rounds after you have finished, the rounds will combine to form one 18 hole round.