Logging back is a different thing...I your internet connection gets stuck in the between and you do not refresh the browser and when its back again your match will start form the same time as if nothing happened between the time your internet was not working...
You can also try this - When you are watching a live match and the match is about to be finish leave the match and go to any other option like fixtures, transfer market then closely watch your morale, condition and treatment packs, you will notice that they get incremented before the match in finished...
And who said the results are pre - determined you can influence them by making changes but that change will have a affect in the game only after a check point where the simulation is being done again......