Speedrun Ethereum
BuidlGuidl's set of build-and-submit Ethereum challenges using Scaffold-ETH 2, from tokens to ZK voting.
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Speedrun Ethereum key facts
| Category | Web3 education |
|---|---|
| Platforms | Web |
| Company | BuidlGuidl |
| Open source | Yes, MIT license |
What is Speedrun Ethereum?
Speedrun Ethereum is a set of hands-on Ethereum challenges run by BuidlGuidl. It lists 10 core challenges, from tokenization and a DEX to over-collateralized lending, stablecoins and ZK voting, each built on Scaffold-ETH 2. The site code is public on GitHub under the MIT license.
How Speedrun Ethereum works
Each challenge is a Scaffold-ETH 2 repository you run locally.
In the Tokenization challenge you start a local chain with yarn chain, deploy with yarn deploy, and run the Next.js frontend in a third terminal. The README gives instructions for both Hardhat and Foundry.
To pass, you deploy the contract to Sepolia, set targetNetwork in scaffold.config.ts to Sepolia, ship the frontend with yarn vercel, and submit the live URL on speedrunethereum.com. After a few completed challenges the site unlocks a builder profile with badges and access to BuidlGuidl's ETH Tech Tree and a Capture the Flag game with 12 contract challenges.
How to start with Speedrun Ethereum
- Install Node 20.18.3 or newer, Yarn and Git, then connect a wallet on the site.
- The Tokenization README says it is meant for developers who already understand the basics and points beginners to a 15-video Web2 to Web3 series first.
- Fund your deployer address with Sepolia test ETH from a faucet such as Alchemy, Infura or Google Cloud.
- The Tokenization challenge has a Telegram group for help, and yarn vercel may ask you to log in to Vercel first.
Speedrun Ethereum fees and limits
Speedrun Ethereum challenges run on test networks, so the gas you spend is test ETH. Each challenge starts on a local Hardhat or Foundry chain, where the Scaffold-ETH 2 faucet button funds burner wallets. Submitting requires a Sepolia deployment, paid for from a deployer address you fund with Sepolia ETH from a faucet. Scaffold-ETH 2 ships predefined API keys for Alchemy and Etherscan so you can finish the challenges without registering for those services; the README recommends your own keys for production apps to avoid rate limiting. Hosting the frontend with yarn vercel may require a Vercel login.
Risks to know before using Speedrun Ethereum
- Challenge 3 has you exploit block-hash randomness in a dice game, a pattern the homepage calls a very weak form of randomness; do not reuse it in production.
- Keep the deployer key you use for testnets separate from any wallet holding real funds.
Speedrun Ethereum alternatives
Other projects people compare with Speedrun Ethereum.
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Free video courses from the audit firm Cyfrin on Solidity, Foundry, DeFi and smart contract security.
Developer portal funded by the Ethereum Foundation, with docs, community tutorials and links to free courses.
Solana's official developer hub with docs, a video bootcamp and a free in-browser Solana Playground.
Where Speedrun Ethereum ranks on DappAtlas
Speedrun Ethereum pros and cons
- 10 core challenges that end in working dApps, not quizzes
- Built on Scaffold-ETH 2, the stack the ethereum.org quickstart uses
- Site code is open source under the MIT license
- Assumes you can already read JavaScript and basic Solidity
- Pricing is not stated on the homepage
Speedrun Ethereum FAQ
What is Speedrun Ethereum?
Speedrun Ethereum is a set of hands-on Ethereum challenges run by BuidlGuidl. It lists 10 core challenges, from tokenization and a DEX to over-collateralized lending, stablecoins and ZK voting, each built on Scaffold-ETH 2. The site code is public on GitHub under the MIT license.
Sources
How this page works
Sources: Speedrun Ethereum: official site, Speedrun Ethereum: GitHub repository, Speedrun Ethereum: Tokenization challenge README. Data as of Oct 1, 2026.
Not affiliated with any project listed. Educational content, not financial advice.