If one color has been coming up a lot, are my odds better by betting with
it or against it on the next round?
Your odds do not change regardless of whether you choose to bet with the
color or against it. Roulette is a game of independent events, where one
spin has no effect on the outcome of any other spin. What appear to be
patterns actually have no affect on the probabilities associated with
the available bets. The chance of hitting red or black on any given spin
is always a consistent number.
This is sometimes difficult to believe, because we have likely all experienced
runs of red or black numbers on the roulette wheel. Statistically though,
it is not unlikely for such a run to occur; in fact there is an expectancy
to it. Runs of red or black numbers are just as likely as runs with alternating
Is there a difference between betting on a combination of numbers and
betting on the same numbers individually?
If you bet $4 on a split bet that covers four numbers, your expected outcome
is equivalent to betting $1 each on the four numbers you're covering.
Splitting your bet over the numbers is only beneficial because it is convenient,
and it allows you to place multiple small bets if you wish to.
Can you beat the house by starting with a table minimum bet on an even-money
spot, then doubling-up after every loss and returning to the lowest level
when you win?
This is commonly referred to as the 'Martingale' betting system, and has
been discussed at length in many forums of gambling discussion. The Martingale
system does offer a high likelihood of netting a small profit, but pits
that likelihood against a low chance that you could lose a major amount.
The flaw in the system revolves around upper table limits. If you happen
to start into a losing pattern where you are doubling your bet each time,
the amount you are betting after a few short losses in a row grows rapidly.
Eventually you reach the upper table limit and can no longer recover all
of your losses with a win on the next spin. If a player is unlucky enough
to lose a number of times in a row, the potential losses are usually seen
to greatly outweigh the potential wins.