Taking a wild guess here, but thinking 1000 points.
The image we see in this thread lists numbers around 100,000-150,000 if we assume 30 members all doing 5 matches, that’s 150 matches. So a “perfect” score could be 150,000, meaning 1,000 per battle. This doesn’t take into account the % bonuses of the guild statues though. So it’s probably a bit more complex than that. Maybe 100,000 + statue colour bonus?