It would rock if this contest was done through MHF on the problem of the week forum, at least that's what I think.
Hi. My Name is Devin Green. I teach math to high school students.
I just wanted to let you know about a math contest that I run every week.
The link to it is:
St. Charles Problem Set Contest | email@example.com
If you have any questions, please E-mail me to firstname.lastname@example.org