Blockchain · Explainer
Algorand Build-A-Bull Hackathon: What It Was and What to Do Next
Algorand Foundation ran a Build-A-Bull hackathon in late 2023 with a $200,000 prize pool in USDC. This guide explains what the event was, how its prize structure worked, what happened after it closed, and what builders can do with the same playbook today.
By the DappsAtlas editorial team · Updated

What the Algorand Build-A-Bull Hackathon was
The Build-A-Bull Hackathon was a global builder competition run by the Algorand Foundation on the Algorand blockchain. The organisers invited developers, designers and student teams to build working products on Algorand and to submit them for judging. The event was announced in October 2023 and was presented as one of the larger prize-backed hackathons on the network that year.
It is best understood as a competition with two parts. The first part was the build period, when teams created prototypes, wrote smart contracts and prepared demos. The second part was the judging and awards stage, when submissions were reviewed and winners were announced, followed by a livestreamed demo day for the grand prize finalists. Both parts were time-limited, so the event has a clear start and end.
For readers now, the useful question is not whether you can still enter, but what the event teaches about how Algorand-focused hackathons are structured and what a team needs to do to compete in a similar contest. The sections below cover the dates, prize pool, tracks, eligibility, what happened afterwards and how to check the record yourself.
Key dates, prize pool and prize structure
Public listings gave the main dates as October 18 to November 15, 2023 for the build and submission window. Sign-up for the event opened earlier, in September 2023, and some listings described the registration stage as open ahead of the official start. The final submission deadline fell inside November, which left most teams a few weeks to finish their projects.
The headline prize pool was $200,000 in USDC. Listings attributed the funding to Algorand Ventures. Because the pool was paid in a stablecoin, the value of each prize was not exposed to the price moves that affect volatile tokens, which is one reason the figure was widely quoted.
Several prizes sat alongside the main pool. A university track carried a $5,000 USDC prize, and a DeFi partner, Folks Finance, offered a prize of up to $10,000 for projects that met its own criteria. Treat each figure as the amount stated in the original announcement. If you need exact payouts, look for the final results published by the organisers, because early listing copy often repeats the planned amounts rather than the amounts actually awarded.
How the tracks and judging categories worked
The hackathon was organised around several tracks. Public listings described five tracks in total, and each track had its own first-place prize as well as a grand prize pool shared across the event. This design let teams compete against others working on similar problems, rather than all entries being judged against one list of criteria.
In general terms, a track-based hackathon tends to reward projects that solve a clear problem in their category. Typical categories in blockchain events include decentralised finance, payments and remittances, developer tooling, consumer apps and real-world asset use cases. The exact track names matter less than the principle: a judge needs to see what problem the project solves, who uses it and why a blockchain is part of the answer.
A practical lesson is to read the track descriptions before you start building. Teams that choose a track after the build is finished often have to rewrite their pitch to fit the criteria. Teams that pick a track early can design the product, the demo and the documentation around what judges are told to look for.
Who could enter and how teams formed
Public listings said anyone could sign up, which made the event open to individual developers as well as established teams. Because the event included a university prize, student groups were also a target audience. Many hackathons use open entry to attract a wide pool of ideas, and then rely on team formation tools, Discord channels and mentor sessions to help people find collaborators.
If you took part in a similar event, you were typically expected to form a team, register it, and then submit a project that met the rules. Many rules cover things like originality, whether code was started before the official start date, open-source licences and whether a project can be entered by more than one team. Read the terms carefully because disqualification is often for technical rules, not for weak ideas.
For future events, prepare a short team profile that lists each member's skills, a description of the product in two sentences, and a plan for who will handle the smart contracts, the front end and the demo. Judges and mentors respond well to teams that can explain their roles and their scope clearly.
What happened during the event and the demo day
A typical blockchain hackathon moves through a few stages, and Build-A-Bull followed a similar path. Registration opened first, then the build window ran for several weeks. Teams submitted their projects before the deadline. Judges reviewed the entries and selected winners for each track. The grand prize finalists then presented their projects to a wider audience in a livestreamed demo day.
Listings noted that the grand prize demo day was scheduled for December and would be streamed across the organisers' social channels. Demo days give finalists a chance to explain their product in front of a larger audience and often help projects gain users, partners or investors after the event.
If you want to follow the outcome, look for the official recap, the list of winners and any post-event updates from the organisers. Many teams also publish their own write-ups, which can show how their project evolved after the hackathon. Use these as secondary sources and check them against the official announcements.
Current status and how to verify the results
The Build-A-Bull Hackathon is closed. Its registration and submission windows have passed, so you cannot enter it now. That is a common situation with event-based guides, and it means the right next step is to look for whatever comes after the event rather than trying to join the original contest.
To confirm the record, start with the official Algorand Foundation website and social accounts. Look for a final results post, a list of winning projects and any statement on prize distribution. Compare those with the early listing pages, which may describe planned prizes rather than the awards that were actually paid.
Be careful with public reporting and third-party posts that describe the hackathon as still open or promise extra rewards. Many such pages are outdated, copied or created to collect wallet connections. If a page asks you to sign a transaction, connect a wallet or share a seed phrase to claim a prize, stop. Legitimate hackathon prizes are announced through official channels and are paid out according to published rules.
Turning a hackathon project into a lasting product
A hackathon can be a good starting point for a long-term project, but only if the team plans for life after the demo. Winning a prize does not automatically produce users, funding or a working business. Teams that continue usually focus on three things: a clear user, a repeatable problem, and a plan for maintenance.
For builders who want to pursue a similar path, a simple checklist helps. Choose one user group and one problem. Build a minimal version that works end to end. Write tests for any smart contract before you deploy it, and get an independent review if money will move through the code. Publish clear documentation so that judges, users and future contributors can understand the system without asking the team.
Also plan the money side. Decide how you will pay for hosting, RPC access and audits, and whether you will apply for grants, raise funds or charge fees. Many ecosystem programmes publish their own calendars, so keep an eye on official channels for rounds that suit your stage.
Practical infrastructure builders often need next
Once a team has a working prototype, it usually needs supporting infrastructure. The list below groups common needs and the type of tool that fills each one. Check each tool's documentation for the chains it supports before you commit, since coverage changes over time.
- Data and indexing: developers often need to read on-chain events quickly. Envio offers indexing and data APIs across many chains.
- Price data: applications that show or settle values need reliable market feeds. Pyth Network is a first-party oracle provider used by many apps.
- Cross-chain movement: if your product must move assets or messages between networks, compare bridge and messaging options such as Across and LayerZero V2.
- Payments and vesting: teams that pay contributors or run token grants can review onchain vesting tools such as Sablier Lockup.
The key discipline is to test each dependency in a staging environment. Confirm that the chain you use is supported, that fees are acceptable at your expected volume, and that you have a plan if a service goes down.
Security checks for hackathon prizes and submissions
Hackathon periods are a common time for scams. Fake registration pages, copied prize announcements and direct messages offering a spot in a contest are all used to steal wallet access. Treat any unsolicited message about a prize, airdrop or whitelist as suspect until you confirm it through the organisers' official website or verified accounts.
Use a dedicated wallet for event activity, and keep only the funds you need in it. Never share a seed phrase or private key with anyone, including people who claim to be judges, support staff or project admins. Legitimate organisers will not ask for those details. Check every contract approval before you sign it, and revoke unused approvals regularly.
For teams, protect the repository and the deployment keys. Store keys in a hardware wallet or a multisignature setup where possible. Enable two-factor authentication on code hosting, cloud and communication accounts. Keep a written record of who controls each key, so that a team member leaving the project does not leave a single point of failure.
What to take from the event today
The Algorand Build-A-Bull Hackathon is a clear example of a prize-backed builder competition with a fixed window, a stablecoin prize pool, track-based judging and a public demo stage. Its details are mostly historical now, but the structure is one that many chains use to attract developers.
To make use of the lessons, read official announcements for any current programme, compare them with independent accounts from past participants, and be honest about your team's capacity. Keep a short list of the infrastructure tools you expect to need, and plan how you will test and secure your code.
If you remember one point, make it this: a prize is a result, not a plan. The projects that last tend to solve a specific problem for specific users, and they build the operational habits that let them continue after the contest ends.
Frequently asked questions
Can I still join the Algorand Build-A-Bull Hackathon?
No. The registration and submission window ran from October 18 to November 15, 2023, so the event is closed. Check the official Algorand Foundation channels for any newer hackathon, grant round or builder program before assuming one is open.
How much was the prize pool and was it paid in USDC?
The prize pool was reported as $200,000 in USDC, funded through Algorand Ventures. Listings also mentioned a $5,000 USDC prize for university teams and a DeFi partner prize of up to $10,000 for projects in its track. Verify the final payout records through official Algorand announcements, since listing pages often repeat early figures.
Where can I find the official winners of the hackathon?
Start with the official Algorand Foundation announcements and any published winners list. Then check the demo day coverage and project pages that teams shared themselves. Treat unofficial posts that promise extra rewards or ask you to connect a wallet as suspicious.
What should I prepare for a future blockchain hackathon?
Read the rules for eligibility, submission format, judging criteria and how prizes are paid. Build a working prototype on the target chain, keep a clear README, and plan for a short demo video. Prepare for security review of any smart contract code, because judges often check it.
Does this guide list dApps from the Algorand hackathon?
Not directly, but many of the tools that teams need after a hackathon, such as indexing, price feeds, cross-chain messaging and token vesting, are listed in the directory. Use them only after you read their documentation and confirm they support the chain you build on.
Mentioned in this guide
dApps in this guide
Envio is a blockchain indexing and data platform offering HyperIndex APIs and fast HyperSync raw data access for developers across 81+ chains.
Pyth Network is a first-party price oracle and market data provider for blockchain apps, trading venues and institutions, with its own PYTH token.
Sablier Lockup is an audited onchain protocol for token vesting, payroll, grants and airdrops, aimed at DAOs and businesses across many chains.
Across is an intent-based cross-chain bridge and swap protocol for moving tokens between Ethereum, rollups and other chains, with an API for apps.
LayerZero V2 is a cross-chain messaging protocol and bridge infrastructure for developers and asset issuers, connecting dozens of blockchains.
Current is a Sui-based lending protocol with isolated markets and one-click yield multiply, focused on tokenized real-economy yield.
A DeFi lending, borrowing and staking protocol that started on Algorand, for users who want pooled-liquidity loans and yield.
Foundation was an Ethereum NFT art marketplace for creators; the team took it offline indefinitely on April 27, 2026 after a failed sale.
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