I created a passkey. My username is not that unique. This might explain why two other teams are listed in my individual stats. I have no recent work units for those other teams. The passkey ensures all my completed work units go to the Code Self Study team.
Information on statistics.
The donor and team stats are updated every hour, although this can be delayed if there were a lot of work units to come back during that hour. We have been turning off web access to the stats database during stats updates (usually on the hour).