Combo Booster – Double winnings on your accumulator bets!

Winamax is boosting your winnings thanks to the Combo Booster promotion! You can take advantage of a cash bonus as long as your accumulator bet includes 4 selections, and this bonus increases each time you add a selection so you can reach 100% of your winnings!

How does it work?

The Combo Booster promotion applies to all matches available on (all sports and all types of bets). Your net winnings will be boosted by 2.5% for an accumulator with 4 selections, and by 100% for an accumulator with 26 selections or more!

Example :
if you place a pre-match €10 accumulator bet with 10 selections with total odds of 8 and your bet comes through, you will have €80 in winnings plus, thanks to the combo booster, 20% x €70 (net winnings) extra, for a total of €94!

Points system

Number of selections Bonus in percentage of net winnings
4 2.5%
5 5%
6 7.5%
7 10%
8 12.5%
9 15%
10 20%
11 25%
12 30%
13 35%
14 40%
15 45%
16 50%
17 55%
18 60%
19 65%
 20 70%
 21 75%
 22 80%
 23 85%
 24 90%
 25 95%
26 and more 100%


  • Selections with odds inferior to 1.10 are not counted. Thus, if you make a combination bet with 5 matches including 4 selections with odds of 2 and one selection with odds of 1.05, then your bonus will correspond to that of a combination bet with 4 selections.
  • If a selection is cancelled, the bonus will be recalculated in order to correspond with the number of valid selections in the combination bet. For example, if you place a combination bet on 7 selections that include a selection that has been cancelled, then your bonus will correspond to that of a combination bet with 6 selections.
  • In regards to the Combo Booster, a MyMatch bet is considered as being a single selection.
  • System bets are considered as a set of independent accumulator bets. The bonus displayed corresponds to the sum of all bonuses from all accumulator bets within the system bet.
  • The Combo Booster bonus does not count towards the net winnings limit for a €550,000 bet (article 6.6 of the sports betting Terms). Therefore, you can win up to €1,100,000 on a bet through the combo booster (€550,000 net winnings + €550,000 bonus).
  • The Combo Booster bonus will only be credited to your account once your account has been fully validated (documents verified and validation code entered).
  • The Combo Booster is credited in the form of a bonus of up to €500 and in cash for anything over €500. The bonuses must be wagered in sports betting or poker before being withdrawn.