Match Bonuses Match Bonus offers are normally the most lucrative of all bonus rewards offered by Sports Betting Sites. In fact, very few sportsbooks offer match bonuses as their primary offer. More often sportsbooks will use match bonuses as a special promotion during major sporting events like the World Cup, European Cup, Champions League, etc. A 100% match bonus means a €50 deposit will be matched by the offering sportsbook, so when you deposit €50 you will be able to bet €100. This bonus will also be subject to a rollover, meaning that you will have to make a number of bets before you can withdraw the money.