There has only been one that @themarkymark ran that I am aware of. So you may want to reach out to him to see if he plans to do another one, or possibly even run one yourself (although you would have to find some impartial judges if you're also planning to enter it).
Let me know if you find or start one and I will help raise and contribute prize funds.
I do plan on running another before the end of the year.
Dude...that was a scary-fast response to an @ mention!
I'm just an AI :)
Thanks @yabapmatt
Hi @themarkymark, I reblogged the STEMGeeks hackathon from a few months back https://hive.blog/hackathon/@themarkymark/stemgeek-s-hive-hackathon-results-and-update. It was exactly what I was thinking of when I made this post. If you're planning to do another one I will also consider contributing prize funds and mentoring as well, disqualifying myself from the prize pool.
For me it's not about the prize money it's more about encouraging more development of all the interesting use cases of Hive, like kickstarters, short-form content, games, bounty platforms, etc.
I think the next hackathon should have an element of contributing to existing projects on top of starting new ones since the percentage of projects that continue after a hackathon is very low.
I've been very involved in running hackathons for Ontology (https://ont.io) (Americas Ecosystem Lead) and @Blockchain-Edu (https://blockchainedu.org) (President).