in the zone
In a state in which one can or feels as though one can perform with exceptional focus, skill, and energy. I'm not the best chess player in the world, but when I'm in the zone, I feel unstoppable. Their goal tender has been in the zone all game long. Nothing has gotten by her!
in the zone
Informal In a state of focused attention or energy so that one's performance is enhanced: a goalie who was in the zone throughout the playoffs.