# Polymarket Maintenance: What to Do & How to Track Arbitrage _Yes, many users are currently experiencing maintenance on Polymarket. This is a common occurrence for prediction markets, usually for updates or system improvements._ **Published:** 2026-08-12 **Source:** https://www.startuphub.ai/ai-news/prediction-markets/2026/polymarket-maintenance-what-to-do-how-to-track-arbitrage --- Yes, many users are currently experiencing maintenance on Polymarket. This is a common occurrence for prediction markets, usually for updates or system improvements, and typically resolves within a relatively short timeframe. ## Understanding Polymarket Maintenance Like any complex online platform, Polymarket periodically undergoes maintenance. These periods are essential for ensuring the platform's stability, security, and performance. While inconvenient, especially when active positions are open or new opportunities arise, they are a necessary part of operating a robust trading environment. ### Common Reasons for Maintenance - **Software Updates:** Implementing new features, bug fixes, or performance enhancements often requires taking the system offline temporarily. - **Security Patches:** Addressing potential vulnerabilities is crucial for protecting user assets and data. - **Database Optimization:** Regular maintenance helps keep the underlying data infrastructure running efficiently, preventing slowdowns or errors. - **Infrastructure Upgrades:** Scaling the platform to handle increased user traffic or new functionalities may necessitate system-wide upgrades. - **Unforeseen Issues:** Occasionally, unexpected technical problems can lead to unscheduled maintenance to diagnose and resolve critical issues. ### How Long Does Maintenance Usually Last? The duration of Polymarket maintenance can vary significantly. Many updates are brief, lasting anywhere from a few minutes to an hour. More extensive upgrades or troubleshooting for complex issues might extend for several hours. It's less common for maintenance to last an entire day, but it can happen in rare circumstances. ### Staying Informed During Downtime Polymarket typically communicates maintenance schedules or unexpected outages through its official channels: - **Official Twitter Account:** This is often the quickest source for real-time updates. - **Discord Server:** The Polymarket community often shares information and discussions around outages. - **In-Platform Notifications:** If the site is partially accessible, a banner or pop-up message might provide details. If you're experiencing downtime and haven't seen an official announcement, checking these sources is your best first step. ## Navigating Prediction Markets During Maintenance When Polymarket is down, you cannot place new trades, close existing positions, or deposit/withdraw funds on that specific platform. This can be particularly frustrating for traders looking to capitalize on breaking news or manage risk. However, the broader prediction market ecosystem often remains active. Events priced on Polymarket are frequently also available on other venues like Kalshi, PredictIt, or even traditional betting markets, albeit with different structures and liquidity. ### Cross-Venue Arbitrage Opportunities Even during maintenance on one platform, opportunities can emerge on others. Our free cross-venue arbitrage engine at StartupHub.ai continuously monitors prices across Polymarket, Kalshi/Robinhood, and PredictIt. It flags instances where a YES + NO combination for the same event costs under $1 across different venues, indicating a potential risk-free profit opportunity. While Polymarket is undergoing maintenance, you might still observe arbitrage opportunities involving Kalshi or PredictIt. Once Polymarket comes back online, new arbitrage opportunities that include Polymarket's prices could quickly appear as the market adjusts. Our live board, located below this text, provides real-time data on these opportunities, and our free JSON API / MCP tool allows advanced users to poll for these chances programmatically. **Please note:** Trading in prediction markets involves risk. While arbitrage aims to be risk-free, execution risks, platform fees, and liquidity constraints can impact profitability. This content is for informational purposes only and not financial advice. ### What to Do When Polymarket is Down 1. **Check Official Channels:** Confirm the outage and look for estimated resolution times. 2. **Exercise Patience:** Maintenance is usually temporary. Avoid attempting to access the site repeatedly, which can sometimes exacerbate issues. 3. **Monitor Other Venues:** If you trade across multiple platforms, use this time to assess positions or look for opportunities on active markets. 4. **Review Your Strategy:** Downtime can be a good moment to review your overall trading strategy, research upcoming markets, or analyze past performance. 5. **Stay Hydrated:** Step away from the screen for a bit. The market will be there when the platform returns. In summary, while Polymarket maintenance can be disruptive, it's a normal part of platform operation. Staying informed through official channels and understanding how to monitor the broader prediction market landscape can help you navigate these periods effectively. **Live cross-venue arbitrage on these markets** The same event priced on Polymarket, Kalshi/Robinhood and PredictIt. Updates automatically. Not financial advice. - **Will Trump recognize Somaliland? :: During Trump's term**. Arbitrage: 58.0% ROI, locks 37c per $1. Buy YES on [Polymarket](https://polymarket.com/event/will-trump-recognize-somaliland-before-2027?via=startup-hub-ai) at 8c, buy NO on [Kalshi / Robinhood](https://kalshi.com/markets/kxrecogsomali) at 55c. - **Who will leave Trump's Cabinet next? Will Robert F. Kennedy Jr. be the next person to leave the Trump Cabinet?**. Arbitrage: 13.0% ROI, locks 12c per $1. Buy YES on [Kalshi / Robinhood](https://kalshi.com/markets/kxcabout) at 20c, buy NO on [Polymarket](https://polymarket.com/event/who-will-leave-trump-administration-before-2027?via=startup-hub-ai) at 69c. - **Where will Putin and Zelenskyy next meet? Will Putin and Zelenskyy meet next in Switzerland?**. Arbitrage: 8.6% ROI, locks 8c per $1. Buy YES on [Polymarket](https://polymarket.com/event/where-will-zelenskyy-and-putin-meet-next?via=startup-hub-ai) at 3c, buy NO on [Kalshi / Robinhood](https://kalshi.com/markets/kxputinzelenskyylocation) at 89c. - **French presidential election: who will advance? Will François Hollande qualify for the runoff in the 2027 French presidential election?**. Arbitrage: 7.4% ROI, locks 7c per $1. Buy YES on [Polymarket](https://polymarket.com/event/next-french-presidential-election?via=startup-hub-ai) at 0c, buy NO on [Kalshi / Robinhood](https://kalshi.com/markets/kxfrpresadvance) at 93c. - **Who will leave Trump's Cabinet next? Will Chris Wright be the next person to leave the Trump Cabinet?**. Arbitrage: 6.4% ROI, locks 6c per $1. Buy YES on [PredictIt](https://www.predictit.org/markets/detail/8850/Who-will-be-the-next-Cabinet-member-to-leave-office) at 9c, buy NO on [Kalshi / Robinhood](https://kalshi.com/markets/kxcabout) at 85c. - **Who will win the next French presidential election?, Gérald Darmanin**. Arbitrage: 5.0% ROI, locks 5c per $1. Buy YES on [Polymarket](https://polymarket.com/event/next-french-presidential-election?via=startup-hub-ai) at 0c, buy NO on [PredictIt](https://www.predictit.org/markets/detail/8766/Who-will-win-the-next-French-presidential-election) at 95c. [See the full live arbitrage board](https://www.startuphub.ai/arbitrage) or poll the free [JSON API](https://www.startuphub.ai/api/v1/arbitrage). ## See live opportunities and the free API StartupHub.ai tracks the same event across [Polymarket, Kalshi/Robinhood and PredictIt](https://www.startuphub.ai/arbitrage) and flags arbitrage the moment a YES plus NO combination drops under $1. Every match is also a free JSON API and an MCP tool for trading agents. ``` curl https://www.startuphub.ai/api/v1/arbitrage?arbs_only=1 ``` Focused guides: [Polymarket arbitrage](https://www.startuphub.ai/arbitrage/polymarket), [Kalshi arbitrage](https://www.startuphub.ai/arbitrage/kalshi), and the [arbitrage bot API](https://www.startuphub.ai/arbitrage/bot). [Arbitrage API reference](https://www.startuphub.ai/api-docs/reference/arbitrage). Informational only, not financial advice. --- Original analysis from [startuphub.ai](https://www.startuphub.ai), the #1 AI startup directory. © StartupHub.ai. 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