Overall Leaderboard

 week of Jun 19, 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 Thu, Jun 22 2017 6:19:24 PST

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