What happens if I retreat first?

Often Rebels will try to power up their FTL drives and jump away to report my position. What happens if I manage to stall them long enough to get my own drives online and jump away first. Do they count as having gotten away and warning the rebels (causing them to catch up faster?) Or is it as effective as destroying them?

Bonus: Same situation, but before I leave or they power up their drives, they offer to surrender? If I accept their surrender, will the report me?

Solution 1:

Yes, the Rebel fleet gets faster if you run away from a Rebel. And if you accept surrender they normally don't report you. I think it's a 50% chance that they will report you.