IcE's Hi/Lo Roulette System
This is by far my farorite system. This system if fairly simple. The places you will be putting money on is the first dozen (1-12) and the second half (19-36). This will cover 84% of the board. The only time you will lose is if the ball lands on: 13, 14, 15, 16, 17, 18, or zero(0). I recommend using European Tables. Also i would advice to use only 4% of your Bank Roll on each spin. There are three variations to this system.
In the descriptions "Lo" will stand for the first dozen and "Hi" will stand for the second half. "BR" stands for Bank Roll.


With this variation you will win when the ball lands on the second half and break even on the first dozen.
Lo $1/ Hi $2 --- Lands Lo - even / Lands Hi +$1 (BR min $75)
Lo $2/ Hi $4 --- Lands Lo - even / Lands Hi +$2 (BR min $150)
Lo $3/ Hi $6 --- Lands Lo - even / Lands Hi +$3 (BR min $225)
Lo $4/ Hi $8 --- Lands Lo - even / Lands Hi +$4 (BR min $300)
Lo $5/ Hi $10 --- Lands Lo - even / Lands Hi +$5 (BR min $375)
Lo $6/ Hi $12 --- Lands Lo - even / Lands Hi +$6 (BR min $450)
Lo $7/ Hi $14 --- Lands Lo - even / Lands Hi +$7 (BR min $525)
Lo $8/ Hi $16 --- Lands Lo - even / Lands Hi +$8 (BR min $600)
Lo $9/ Hi $18 --- Lands Lo - even / Lands Hi +$9 (BR min $675)
Lo $10/ Hi $20 --- Lands Lo - even / Lands Hi +$10 (BR min $750)
Lo $15/ Hi $30 --- Lands Lo - even / Lands Hi +$15 (BR min $1125)
Lo $20/ Hi $40 --- Lands Lo - even / Lands Hi +$20 (BR min $1500)
Lo $25/ Hi $50 --- Lands Lo - even / Lands Hi +$25 (BR min $1875)
Lo $30/ Hi $60 --- Lands Lo - even / Lands Hi +$30 (BR min $2250)
Lo $40/ Hi $80 --- Lands Lo - even / Lands Hi +$40 (BR min $3000)
Lo $50/ Hi $100 --- Lands Lo - even / Lands Hi +$50 (BR min $3750)
Lo $100/ Hi $200 --- Lands Lo - even / Lands Hi +$100 (BR min $7500)
These are just examples of what to bet and what you will gain. The concept is simple just bet double on the second half of what you bet on the first dozen.