Google Support explanation is vague :
Scores update at the time of each checkpoint. The Mind Units held at that checkpoint are averaged with the running average score for each faction.
It does not explain if the field is done in the first checkpoint or the last one within that cycle.
My understanding is that if I make a field worth 100K in the first checkpoint, the team gets 100K. If nothing happens and I make another 100K in the second checkpoint I get 100 / 2 = 50K. As the team had 100K, we now have a total of 150K.
Is my logic right ? If not, can you please explain how it works with a practical example ?