How Fast Is Polymarket Copy Trading? Latency, Explained
June 15, 2026 · 6 min read
Everyone claims 'sub-second' Polymarket copy trading. Here's how copy latency actually works — feed lag vs execution time — and the real numbers behind a fast copy bot.
Speed wins copy trading — get in after the source wallet and you get a worse price or miss the move. But 'sub-second' and '0-second execution' are marketing words. Here's what actually drives latency, and how to judge a fast Polymarket copy bot.
Two different clocks
Total copy latency splits into two parts that are often conflated:
- Feed lag — how long until the bot even sees the source trade. This depends on the data source and is largely outside the bot's control.
- Execution time — how long the bot takes, once it sees the trade, to validate, price, and place your order. This is the part a good bot controls and optimizes.
Where execution time goes
Inside execution, time is spent on a balance check, an order-book fetch, market validation, and the signed order submission. Naive bots re-read on-chain balance and re-fetch the book on every order, adding seconds. A well-engineered bot caches what's safe to cache and keeps slow calls off the critical path.
What 'fast' really looks like
PolyMaster shows you both clocks per trade: the feed lag and the execution time in milliseconds. After optimization, filled orders land in roughly a second of execution — and you can verify it yourself in the timeline rather than trusting a slogan.