FirstBlood is a decentralized eSports protocol based on Ethereum that allows users to compete against each other in popular online games (e.g. DOTA2) for rewards. FirstBlood utilizes an Ethereum smart contract that acts as escrow for tournament funds. It uses oracle-like entities called Witnesses to process game results and initiate transfers. Its native 1ST token allows users to play matches, become a Witness for games, vote on juries, host tournaments, and claim rewards from referrals. Many different types of tournaments can be created using the FirstBlood platform and the project appears to have created a set schedule for its tournaments.