Guide
The SharkBetX Exchange
The core SharkBetX product is a modern betting exchange that maps Polymarket's order book onto familiar back/lay cells, a leagues sidebar, a bet slip and live scores.
A real exchange, powered by Polymarket
SharkBetX takes the deepest sports prediction-market liquidity that exists — Polymarket's order books — and wraps it in the interface a serious bettor expects. Instead of one market card at a time, you get a leagues sidebar, a live match list, back and lay odds cells, and a right-hand rail showing unmatched, matched and open positions.
Back and lay, the way you know it
Every market is mapped onto Polymarket YES/NO event contracts. Back means you bet an outcome happens; lay means you bet it does not. Two order types cover every situation:
- GTC (Good Till Cancelled) — a resting order that stays open until it fills or you cancel it.
- FAK (Fill And Kill) — an instant order, ideal for live betting.
Exchange odds, not bookmaker odds
Polymarket prices are probabilities between $0.01 and $0.99 with no built-in margin, so headline odds are routinely sharper than fixed-odds books. On major fixtures the liquidity is deep enough for volume bettors to get matched without walking the price, and SharkBetX layers smart order routing on top for cleaner fills.
A flat 2% commission
Commission is 2% on net winnings only, charged only on bets that win. Losing bets cost your stake and nothing more, and there is no Betfair-style premium charge that scales up for consistent winners. Gas on Polygon is a fraction of a cent per transaction.
Coverage follows Polymarket
20+ leagues are available with live scores and Live / Prematch / Today / Tomorrow / Future filters. The honest caveat: depth follows Polymarket coverage, so big leagues are a strength while obscure fixtures with no Polymarket market have nothing to bet on. Always check the match is listed before planning around it.
Ready to bet at the best price? Visit SharkBetX — our #1 exchange. Or read the full SharkBetX review.