Many people struggle with self-motivation when it comes to achieving long-term fitness goals, particularly when sustained effort is required. To address this, we build Stake & Run, a Telegram bot application that allows users to stake ETH and participate in fitness challenges, such as a 30-day running challenge.

Solution: In Stake & Run, users stake ETH to join the challenge and upload daily screenshots of their runs to the Telegram bot. An integrated AI coach validates the uploaded data. User performance is tracked on-chain using The Graph for transparency. The challenge smart contract is deployed on Scroll Sepolia and enforces clear rules: users must complete the challenge to get their staked ETH back. If they fail (e.g., miss more than 4 days), their stake is slashed and awarded to the top performers who run the most distance over the 30 days.

Incentives: The staking and slashing mechanisms, managed by the smart contract, provide multiple incentives to keep users motivated:

1. Earn rewards – The chance to earn interest is a strong motivator, especially for longer challenges.
2. Accountability – Avoiding slashing keeps users focused on consistent participation.
3. Competition – The prize pool made up of slashed stakes motivates participants to run more and compete for rewards.