From the Rivers of Ink webpage:

The Rivers of Ink Writer’s Conference is proud to announce our third annual Story Contest! Open to writers age 15 and up, the contest will award first, second, and third prizes to the most engaging and promising works submitted.

All genres are accepted, including nonfiction. Send the first five pages (no more than 1500 words; shorter works are okay) of your manuscript, with a $10 entry fee per submission, to: RoI Writing Contest, c/o AFMC, PO Box 2296, Richland, WA 99352

Stories must be postmarked by August 1, 2015 to be eligible. Finalists will be notified via email by September 15, 2015, so be sure to include your email address with your submission. Finalists who have already paid for their admission to the conference will be refunded.