Dear Math Coordinators, I am writing with sincere regret to announce the cancellation of this year's OSU High School Math Day, and the associated competition. The spread of the coronavirus is making it clear that it would be irresponsible to ask students to come together, even with only their classmates and teachers, to take the competition this spring. I hope you and your students will stay safe over the coming months, and look forward to seeing many of you on OSU's campus in the future. We continue to hope that next fall's Math Day, scheduled for Wednesday, October 7, will take place as scheduled. Sincerely, Jeff Mermin Associate Professor, Department of Mathematics Oklahoma State University mermin@math.okstate.edu