Which Bets Work Best With Martingale?
The Martingale system is designed for even-money roulette bets with close to 50/50 odds.
These bets include red or black, odd or even, and low numbers from 1–18 or high numbers from 19–36. We focus on these bets because they offer the highest win probability available in roulette without increasing complexity.
Probability Of Consecutive Losses
The risk in Martingale comes from repeated losses, not single spins. Each loss forces you to double your next bet, which increases exposure very fast.
Here is how the probability of losses in a row looks when betting on black on an American roulette wheel:
- Odds of one loss in a row are about 52.6%.
- Odds of two losses in a row are about 27.7%.
- Odds of three losses in a row are about 14.6%.
- Odds of four losses in a row are about 7.7%.
- Odds of five losses in a row are about 4.0%.
- Odds of six losses in a row are about 2.1%.
This means you will win most short betting sequences. That is why Martingale feels effective at first. However, the losing streak always exists in the background.