Operators for timed challenges allow you to set the "winning conditions" for your agents. There's currently three operators:
"Most" and "least" are available for both Agent vs. Agent and Team vs. Team challenges. "Average" is only available for Team vs. Team. "Most" is generally the most common option; this tells PowerStandings that you want the agent or team with the highest KPI value when time runs out to be declared the winner.
The "Least" option is for KPIs where you actually want the agent / team with the lowest value to be the winner. Common examples might be if you wanted to track which support agents had the fewest remaining open cases at the end of the week, or which agent had the fewest "dead lead" call dispositions.
For Team vs. Team challenges, the "Average" operator sets up the competition to see which team can have the highest average KPI for the defined challenge time period. For example, "the team with the highest average Appointments Set per day over a period of two weeks will be the winner."