PlanA-PlanB (0x7fd18d13de2d76adf66f6ab90861fb959bf933e5) is a Polymarket trader who somehow posts an 81% win rate while sitting at -$21.51 total PnL — the most honest portrait of why raw accuracy means nothing without position sizing discipline. The stats read like a koan. Rank 1,638,406. 51 trades across 51 different markets over 46 days at 1.1 trades per day. Win rate that would make most degens jealous: 81.08%. But the portfolio? Negative $21.51. This Polymarket trader is the textbook case of a specialist who nailed the prediction side and got absolutely ruined by the execution side. Here's the edge hack that broke: PlanA-PlanB hunts micro-edges in crypto price action calls — tight entry discipline, tight market selection, refusing to chase. Average entry price sits at 0.73, meaning they buy dips and sell rallies with surgical precision. The best trade netted $12.86 on Ethereum price on October 23?. But then came the worst trade: -$10.47 on Ethereum above _ on October 24?. That spread tells the whole story. Low risk tolerance, small average trade size of $2.80 — this is someone betting like they're protecting capital while playing prediction markets like they're farming noise. The real trap: 14 open positions sitting right now. Buy-sell ratio of 15.25 means they're way longer than they should be. This top Polymarket trader has the prediction market fundamentals down — 81% accuracy is genuinely strong — but swings between $12.86 wins and $10.47 losses when they should be compounding 5% gains consistently. Win rate without sizing discipline is just slow death with a smile. PlanA-PlanB is live proof that Polymarket PnL doesn't care about your win rate. You can read price action better than 99% of retail and still go negative if you're betting the same $2.80 on a 50-50 variance flip as you are on your highest-confidence setups. Not everyone survives the drawdown between your edge materializing and your account size staying tiny.