A basic blackjack player who follows a blackjack strategy will win 43.3 percent of the time, lose 48.0 percent, and push 8.7% of the time. As a result, the chances of losing 8 consecutive blackjack hands are as low as 0.59 percent, or one in every 170 tries. Remember that these are averages, and your results may vary if you play blackjack online in short periods.