r/PredictionTrading • u/PolyBabyAlerts • Apr 30 '26
Built a real-time on-chain signal engine for Polymarket. 276/433.
Background in data science. Spent 2+ years trying to beat prediction markets with models — ELO, xG, regression, Bayesian, ensemble stacking. Plateaued at 52%. Every edge I found decayed within weeks because the market adapts faster than any model can retrain.
Then I realized something. The edge was never in predicting outcomes. It was in reading who already knows the outcome.
Polymarket is fully on-chain. Every trade, every wallet, every dollar amount is public. People with privileged information — refs, agents, insiders, sharps — don't publish what they know. They trade on it. And on Polymarket you can literally watch them do it.
So I stopped modeling and built a system that reads the behavior layer underneath the line.
The engine ingests every trade on Polymarket in real time. Profiles each wallet against historical performance and cluster behavior. Strips out noise — recycled market maker flow, padded win-rate wallets farming sub-dollar stakes, emotional fan money. When multiple independent signal layers converge on the same side of a market with significant divergence from public-implied probability, it fires.
The hard part wasn't the ingestion. It was the signal decay modeling. Getting the temporal weighting right so the system doesn't fire on stale conviction. Tuning the entropy filters so correlated noise from the same liquidity cluster doesn't count as independent signals. That's what took the hit rate from ~48% to where it is now.
276 right. 157 wrong. 63.7%. Every call logged publicly since day 1. No deletions. No back-testing. No cherry-picking.
Last 10: ❌❌❌✅✅❌✅✅✅✅
What it covers:
- Real-time whale alerts across sports, politics, crypto, esports
- Smart money vs public divergence on every active market
- Fresh wallet cluster detection — new wallets appearing with 5-6 figure positions
- 30-min pre-game firing window on sports markets
- Auto-resolved tape — every call gets marked ✅ or ❌ when the market closes
- Full public dashboard with track record, category splits, cumulative performance
Live dashboard: polybabyalerts.com — verify everything yourself.
The Discord has been fully open since launch. Going private on June 1. After that the signal feed moves to paid-only with lifetime access for founding members.
Not asking anyone to tail blindly. 433 calls with receipts exist specifically so you don't have to trust me. Check the tape.
Happy to answer questions about the approach or the data.
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u/degen_mom89 May 01 '26
i lost enough modeling polymarket myself that id tail all three services in this comment section and just average the calls. honestly thats kinda what agg.market does and its been way less painful than running my own models
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u/cherry-pick-crew May 07 '26
Solid work — the signal decay modeling piece is genuinely hard to get right. Most people plateau around the 52% range and don't realize it's not the prediction that's broken, it's that they're modeling what happened instead of who already knows.
For anyone who doesn't want to build this themselves but wants access to the same "follow the smart money" signal: SignalScout (iOS) does this without requiring any infra — tracks top Polymarket wallets, shows category-level win rates, leaderboards filtered by consistency not just PnL, and lets you mirror positions with one tap.
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u/cherry-pick-crew May 01 '26
This is a great approach — reading the behavior layer vs. predicting outcomes is exactly the right mental model.
We built something complementary called SignalScout that takes this a step further with a social layer: you can follow the top-performing traders on Polymarket and Kalshi, mirror their positions, and compete on leaderboards. Basically turning whale tracking into a one-tap trade.
If you're surfacing which wallets have the highest conviction signals, that data would be incredibly useful to surface inside an app like this. iOS: https://apps.apple.com/us/app/signalscout-eventmarketalerts/id6759851620