score:3
This casino site says:
Think your number or color has to hit soon? The longest recorded streak of one color in roulette in American casino history happened in 1943 when the color red won 32 consecutive times. In a row. The people convinced black had to hit next were absolutely right. Eventually.
Interestingly, I wrote a quick simulation of this, and can get to 29 in a row rather quickly, but to get to 32 it took several minutes:
68717891 Flips, in Elapsed Time: 0 min, 2 sec , Current longest run=25
68717892 Flips, in Elapsed Time: 0 min, 2 sec , Current longest run=26
102946854 Flips, in Elapsed Time: 0 min, 3 sec , Current longest run=27
102946855 Flips, in Elapsed Time: 0 min, 3 sec , Current longest run=28
4078170601 Flips, in Elapsed Time: 2 min, 1 sec , Current longest run=29
4078170602 Flips, in Elapsed Time: 2 min, 1 sec , Current longest run=30
4078170603 Flips, in Elapsed Time: 2 min, 1 sec , Current longest run=31
7945382548 Flips, in Elapsed Time: 3 min, 56 sec , Current longest run=32
7945382549 Flips, in Elapsed Time: 3 min, 56 sec , Current longest run=33
15853962961 Flips, in Elapsed Time: 7 min, 52 sec , Current longest run=34
15853962962 Flips, in Elapsed Time: 7 min, 52 sec , Current longest run=35
15853962963 Flips, in Elapsed Time: 7 min, 52 sec , Current longest run=36