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Sure AgentCash,
Odds of winning on betting on 20 numbers are 52% (2.6% x 20) and payout is $35 after paying $20 for the bet. (that's if I understand you correctly)
If you are doubling on a loss then you will hit $64 per number after 6 bets , thereafter you can't double just go to $100.
Once you hit the $100 max the doubling stops so lets look at winning on the 6th bet which is probably as far as you normally go in a 50:50 losing streak.
after 5 lossses you've lost $1,260 and on the sixth you win $1024 (thats a 35x$64 stake less the loss of $64x19 on the losers). Giving a loss of $236, even after you win on the sixth.
Obviously the probabilities of this are irrelevant as even in the favourable outcome you've lost, if you look at losing 4 and winning on the 5th you also lose.
Wierd huh? but the reason is that the table doesn't compensate for the risk. You have a 48% chance of losing so the return on a odds of each bet needs to give a least returns of 1.92:1 to break even in the long run however the return on each bet is only 1.84:1 (ie 35/19).
This illustrates how poor the odds are on the table.
Didn't do hitting the max but since you can't continue doubling and you're losing cash even if you double its a moot point.
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