2021 Constantine Firecracker 4K Fun Run/Walk This fun family Run-Walk will be held on the track, sidewalk, cross country course and a little road, it is stroller friendly. Saturday, July 3rd. Registration begins at 7:30 am with the NOT timed race beginning at 8 am. Dress up is optional. Attached Files 2021 Firecracker 4K.docx.pdf