Thats because of the house edge, for example: you have a lose streak of ten rolls at 2x payout with rolls: 66.78 56.34 98.65 91.45 50.11 65.34 76.43 77.44 81.11 55.98 in this case if you bet for the opposite site you would have gotten a 4 win streak a lose and 5 win streak... So it is easier to see big lose streaks than win streaks, but not impossible, i had once 411 win streak at 1.01 payout, so it can happen...