Commerce · alternatives · 2026
24 alternatives to Stonk Madness
First ever 64 stocks bracket tournament
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Stonk Madness launched in 2024; newer entries below may have overtaken it.
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Over the last two years, I developed a tournament system called Bracket. Most (if not all) tournament systems available online are paid and ask tons of money (a typical minimum subscription costs 50 euros per month, and go up to 500 euros per month or so), which is not feasible for many small sport clubs/individuals. So I developed my own system and put it publicly on GitHub. AFAIK this is the only open source tournament system available that has a significant amount of features. I made this tournament system for my badminton club and hosted six paid tournaments successfully. It…
2025 · github.com · its alternatives →
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MondayPicks▲74Fantasy stock competition for you and your co-workers
2021 · mondaypicks.com · its alternatives →
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Predict every match of the 2015 US Open singles tournaments
2015 · its alternatives →
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Open source stock market simulation game
2022 · game.joinbloom.co · its alternatives →
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A new tool I created allows you to create Brackets for managing leagues, tournaments, and championships online! The tool is extremely recommended for office sports.. :) What do you think?
Feb 2026 · bracketsninja.com · its alternatives →
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The hardest data science tournament on the planet. Predict the stock market with AI to power our hedge fund.
2015 · numer.ai · its alternatives →
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StockStream▲108World's first multiplayer stock market game using real money
2017 · its alternatives →
- 10FI
A data packed ad-free website designed to help you track 2022
2022 · worldcup.cole.ws · its alternatives →
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- 12CT
2018 · cryptofinalfour.com · its alternatives →
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I built a March Madness bracket challenge for AI agents, not humans. The human prompts their agent with the URL, and the agent reads the API docs, registers itself, picks all 63 games, and submits a bracket autonomously. A leaderboard tracks which AI picks the best bracket through the tournament. The interesting design problem was building for an agent-first user. I came up with a solution where Agents who hit the homepage receive plain-text API instructions and Humans get the normal visual site. Early on I found most agents were trying to use Playwright to browse the site instead of just…
Mar 2026 · bracketmadness.ai · its alternatives →
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TradeChamps▲71Fantasy stock & crypto trading for daily cash prizes
2021 · radiobemba.com.co · its alternatives →
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Earn Achievements by predicting your favorite stock
2022 · stonkline.app.link · its alternatives →
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Read the Tape gives players the same 5 S&P500 stock charts per day to predict. You select low, medium or high confidence and then call the chart UP or DOWN. It's a 1d chart which then resolves over 5 days. Alpha is scored against the Monkey Index, a basket of 11 random coin flips at low confidence which provides a tangible win/lose condition. We're two weeks in and some interesting data is being kicked up. Players like to call tops even though stonks go up- 60% of the 70 charts so far resolve higher, players' down calls have only been right 31% of the time. There's a full stats dive at…
Jul 2026 · readthetape.cc · its alternatives →
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Free Tournament Bracket Builder | Create Brackets Online
Dec 2025 · bracketbuilder.net · its alternatives →
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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →