Solana Fall Hackathon 2026 (Colosseum)

Colosseum runs two Solana hackathons a year, each followed by an accelerator cycle. The fall 2026 edition runs from 28 September to 2 November, per Colosseum’s own Codex newsletter.

For scale, the spring edition — Frontier — drew more than 10,000 participants from 150 countries and 2,857 final submissions, with $2.75 million in combined prizes and pre-seed investment. Colosseum’s venture fund has deployed over $2.5 million into winning founders.

The fall hackathon’s name, prize pool and registration page had not been published at the time of writing. Builders who do not want to wait can enter Eternal instead: Colosseum’s rolling between-hackathons programme, where you launch a product in four weeks and compete for $250,000 in pre-seed funding and a place in the next accelerator cohort.