Overall Leaderboard

 week of Sep 18, 2017 

How do we compute the scores? We use the following formula:

, where:

C - is the number of correct answers,
I - is the number of incorrect answers, and
G - is the grade number.


How often is the leaderboard updated? The leaderboard runs for one week and is updated every 5 minutes. The leaderboard week starts on Monday and ends at midnight on Sunday.

last updated on Sat, Sep 23 2017 10:22:14 PST

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