Connect a MetaMask wallet on BNB Smart Chain, create a match with your stake, and wait for an opponent to join at the same amount. Both stakes are held by the escrow contract, not by GAP.
Report the result within 4 hours. Conceding pays your opponent instantly and two matching draw reports refund both sides; anything else, including two players who both claim a win, goes to review. If nobody reports for 8 hours, or a review goes unresolved for 4 hours, the stakes become refundable — anyone can send that refund, but it does not happen on its own.
The winner receives 90% of the pot. The 10% fee is only charged when there is a winner — draws, refunds and cancelled matches return every stake untouched.