While you are contesting a battlefield, do you also control it?

Ruling: No, you do not control the battlefield if you are the one contesting it.

Nuances:

• You cannot cast cards that require controlling a battlefield (like Recruit the Vanguard) while contesting
• You can only score each battlefield once per turn, either through conquer or hold
• Moving a new unit into a previously scored battlefield does not trigger conquer effects again