THOMAS ELROD SYSTEM
Basically, the system uses a debit, or due column,
and a control number which is divided into the debit
to arrive at the figure of the amount of the next bet.
Elrod used a basic goal of 100 units for his initial
debit or due. He used the figure 20 as his initial
control number.
He divided 100 by 20 and therefore his first bet was
5 units.
If he lost, he added the amount of the losing bet to
the debit and divided again. After a win, he subtracted
the amount of odds he control figure and the amount of
units won from the debit figure and divided again.
Elrod used the column or dozens exclusively, thus his
odds were always 2 to 1 and this was always the figure
he would subtract from the control number after a win.
He never allowed his control number to drop below 3.
Thus, he needed two or three wins in a row at the end
of a series in order to close it out and start over.
He also never reduced his bets at any time.
Here is an example:
Debit Control Bet Outcome Win Lose TWin TLose
100 20 5 L 0 5 0 5
105 20 5 L 0 5 0 10
110 20 5 W 10 0 10 10
100 18 5 L 0 5 10 15
105 18 5 L 0 5 10 20
110 18 6 W 12 0 22 20
98 16 6 L 0 6 22 26
102 16 6 L 0 6 22 32
108 16 6 W 12 0 34 32
92 14 6 W 12 0 46 32
80 12 6 L 0 6 46 38
86 12 7 L 0 7 46 45
93 13 7 W 14 0 60 45
79 11 7 W 14 0 74 45
65 9 7 L 0 7 74 52
72 9 8 L 0 8 74 59
81 9 9 L 0 9 74 68
90 9 10 L 0 10 74 78
100 9 10 W 20 0 94 78
80 7 11 W 22 0 106 78
56 5 11 L 0 11 106 89
67 5 13 L 0 13 106 99
80 5 16 L 0 16 106 115
96 5 19 L 0 19 106 134
115 5 23 W 46 0 152 134
69 3 23 L 0 23 152 157
92 3 30 L 0 30 152 187
122 3 40 W 80 0 192 187
42 3 40 W 80 0 272 187
0
Here you start over. Obviously there are endless variations.
You don't have to use dozens or columns. You can arbitrarily
add numbers to either the debit or control numbers to
reduce the amount of your bet. And, you can adapt the system
to other games and types of gambling.
Obviously, the system is not foolproof. Bets will eventually
rise during losing streaks. Sometimes they can get prohibitively
big. Still, with a little common sense it's not too bad.