Last updated: July 6, 2026 · By Mikkel Hansen
Quick Answer
- Hit rate (European)
- 32 ÷ 37 = 86.48%
- Loss probability
- 5 ÷ 37 = 13.52%
- Hit rate (American)
- 32 ÷ 38 = 84.21%
- Expected value
- Negative (house edge remains)
- Key point
- Hit rate is not profit rate
This page owns the math behind the Romanovsky Roulette System: the probabilities, what they mean, and why they do not add up to long-term profit.
32/37 Probability
A European roulette wheel has 37 pockets. The Romanovsky layout covers 32 of them, so the chance the ball lands on a covered number is 32 out of 37. The exact chip placement that reaches 32 is described in the 32-number Romanovsky bet layout.
86.48% Hit Rate
32 ÷ 37 = 86.48%. On roughly 86 spins out of every 100, a covered number lands and at least one bet wins.
13.52% Loss Probability
The five uncovered numbers give a per-spin loss probability of 5 ÷ 37 = 13.52%. About 14 spins in every 100 land on a danger number and lose the whole stake. The consequences are covered under the 13.52% loss probability.
Why Hit Rate Is Not Profit
The system uses several bets at once. On a winning spin, some of those bets still lose, so the net gain is small. On a losing spin, the entire stake is gone. A high hit rate therefore describes how often you win, not how much. Frequent small wins can still add up to a net loss once danger numbers appear.
European vs American Probability Table
| Roulette Type | Total Pockets | Coverage | Hit Probability |
|---|---|---|---|
| European roulette | 37 | 32 | 86.48% |
| American roulette | 38 | 32 | 84.21% |
The gap widens when you factor in the house edge - see the full European vs American roulette odds comparison.
House Edge and Expected Value
European roulette carries a house edge of about 2.70%; American roulette about 5.26% because of the double zero. Romanovsky does not touch these figures. Expected value stays negative: each unit staked returns, on average, slightly less than it cost.
Coverage changes volatility, not expectation. The house edge is unchanged by how many numbers you cover.
Long-Term Results
Over a short session, an 86.48% hit rate can produce a run of wins. Over the long run, negative expected value dominates, and results trend toward a loss. This is why the system is best understood as changing the experience of play, not the outcome. Managing exposure is covered under Romanovsky bankroll management, and worked figures appear in the Romanovsky payout examples.
FAQ
What is the Romanovsky hit rate?
On European roulette, covering 32 of 37 numbers gives 32 ÷ 37 = 86.48% per spin.
What is the Romanovsky loss probability?
Five uncovered numbers out of 37 give 5 ÷ 37 = 13.52% per spin.
Does an 86.48% hit rate mean I will profit?
No. Hit rate is how often a covered number lands. Net profit depends on settlement, and the house edge keeps expected value negative.
What is the Romanovsky expected value?
Negative. Roulette has a built-in house edge, so long-term expected value is negative for any roulette bet, including Romanovsky.