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Coach99 is a Polymarket wallet profile with -$6.9K PnL, $5.0M total volume, a 80.6% win rate, and activity across 589 markets. This page summarizes the wallet's trading record, risk signal, market activity, and generated trader overview. Risk is shown as low and should be interpreted as an analytics signal, not financial advice.
Trader Overview
One wallet opened with an enormous $313K deposit, and this Coach99 Polymarket trader has somehow managed to turn that into a net loss of nearly $6,865 despite boasting an 80.56% win rate — the kind of stat breakdown that makes you question everything you know about prediction market analytics.
Coach99 is a whale-tier Polymarket trader currently ranked near the bottom at #2,650,493 by PnL, but the numbers tell a war story, not a scam. With a -46.67% ROI on deposits, $167K withdrawn against $313K deposited, and 589 markets traded across 157 total trades, this is a high-volume operator who clearly understands the mechanics but got burned on a few bad positions that dwarfed the winners. The 80.56% win rate Polymarket trader is textbook: consistent small wins, then one catastrophic loss. His best trade: +$1,336.50 on UFC Fight Night: Cortes-Acosta vs. Gaziev (Heavyweight, Main Card). Worst: -$343.62 on UFC Fight Night: Rock vs. Aliev (Lightweight, Prelims).
The edge here is raw discipline. With a buy-to-sell ratio of 20.29:1 (almost entirely buying YES shares) and an average entry of $0.87, Coach99 is a conviction buyer who accumulates heavy positions in low-priced YES outcomes. That 80.56% win rate is real, but the low risk label (combined with a 1.5 trades-per-day cadence) suggests he plays the math on high-liquidity event lines, not the noise. The problem? One bad 1.5% loss (the worst trade) likely wiped out dozens of small wins. The gameplay is "grind small edges, accept the occasional blow-up."
Currently holds 120 open positions with only 37 closed — that’s a massive unrealized exposure. If the open bets are underwater, the realized PnL might be masking a deeper hole. Pola there’s a bull case: if his open bets are winners, the -$6,864 could flip quickly. Reality check: 80% win rate with negative PnL means his losing trades are bigger than the winners — a classic sizing mistake or poor exit timing on the big bets.
Check this wallet on Predicts.guru for real-time PnL breakdowns and open position risk, or browse other top Polymarket traders who don’t carry the same "winning but losing" contradiction.
whaleRisk: low