After purchasing a ranked win boost, one of our boosters will start to play on your account. The booster will try to win as many ranked games as possible in order to finish his work in the fastest manner. Losing a game during the ranked wins boost means that the booster will have to win 2 extra games. For example, If you buy 10 wins and the booster loses 2 games, he will have 12 wins and 2 defeats overall by the time he has finished ranked win boost on your account. We guarantee a 90% win rate on any win boost purchased until Diamond tier. From Diamond tier the guaranteed win rate is 80%.