Not true. It would be true in the case if Russian roulette where there is no benefit to "winning". In an all-risk-no-reward scenario like RR, your statement is accurate. But in a game like trading you have to account for the potential gain and the cost of that gain. If you have a 5/6 chance of a 20% gain and a 1/6 chance of 100% loss, that is the same as having a 5999/6000 chance of 0.016667% gain and a 1/6000 chance at 100% loss. True you have to play more times to lose, but also you have to play more times to win. But in both cases the risk of loss and the chance of gain are equal.