The longest same-color roulette run is a claimed 32 reds — the verified famous one is 26 blacks
Asked:“the longest streak in roulette”
Two same-color streaks dominate the record: a widely repeated but unverified claim of 32 consecutive reds, usually dated 1943, and the well-documented run of 26 consecutive blacks at Monte Carlo Casino on 18 August 1913. Four modern sources were compared; probabilities are for the exact run starting from one specified spin.
32 reds is a claimed record, not a verified one. Modern pages repeat it, but the searched sources conflict on where it happened and no primary casino log was found.
fixanswer.com
The location conflict is stark: one source places the 32-red run in U.S. casino history, another in a Brazilian casino, and a third names no place at all.
lasvegasadvisor.com
Monte Carlo’s 26 blacks of 1913-08-18 is precisely dated and located — but it is not the longest if the 32-red claim is accepted.
hsm.stackexchange.com
From a specified starting spin, 32 same-color spins is about 1 in 10.32 billion on a single-zero European wheel and 1 in 24.23 billion on a double-zero American wheel — a fixed-window probability, not the chance of it ever happening somewhere.
roulettephysics.com
What each source claims
| Source | Claimed streak | Year | Claimed location | Characterization |
|---|
Research run on 2026-09-01. Two highlighted streaks and four source claims were compared; each probability is the chance of that exact same-color run beginning at one specified spin (red or black pays on 18 of 37 pockets on a European wheel, 18 of 38 on an American wheel). Source retrieval timestamps trimmed to dates for space. No primary casino record or Guinness verification was found for the 32-red claim.