Notification when reaching 10 Best answers

We are thinking to run a bounty system for our community members to encourage them to engage in helping other people.
we use Q&A plugin to select the best answer or (Solved).
Is there any way we can get a notification when a specific community member hits every 10best answers?
for example, when the member hit 10 we get a notification when hit 20, 30, 40 Etc.

Thanks in advance