The challenge resets at 00:00Z. Everyone receives the same airport, weather, traffic sequence and objectives. There is no time limit, retries are allowed, and only the best result is kept. Free accounts can enter on KSAN days.
The date determines the traffic, weather and objectives, so retries and player results are comparable.
Traffic handled sets the base score. The session grade then multiplies it.
A new challenge replaces the previous one. Consecutive entries build the streak shown on the setup page.
Scores post under an anonymous controller handle (CTL-XXXXX). Free — no card required.