mechanism of betting at OneHash is very simple and clear.
in each bet there are several results you can bet on (depending on discipline, contest or specific event). you decide how much BTC you want to stake for which option, and you put them in the bank. after finished event, all players who bet on won result gets their BTC and all of BTCs bet on all other results that didnt win.
winnings are distributed accordingly to proportions of all bets placed on won result.
OneHash is not a bookmaker - users play against each other, not against the site. we only take 1% commission.
(this information will be included in our 'Help' section - we hope to get it work today ASAP)