Tier et Tout Roulette Strategy
Tier et Tout divides a bankroll into one-third then two-thirds stakes. It is not a way to replenish a bankroll after both bets lose.

With a £90 bankroll, the rule bets £30 then £60 after a loss. One success nets £30; two losses deplete the full £90.
Rule as described
Tier et Tout is an even-money two-stage pattern. Divide the bankrollmoneyBankrollThe total amount set aside for play. Bankroll management is deciding how much of it to risk per bet and per session.Read full → into one-third and two-thirds; bet the first third, then if it loses bet the remaining two-thirds. After both bets lose, restarting requires a new bankroll allocation, so the pattern is not self-contained recovery.
Two-stage table
A £90 example makes the cash flow plain.
Worked example
Bet £30 on blackbetBlackEven-money bet on the 18 black numbers. French: noir.Read full →. A win leaves the session at £120, a £30 gain. If black loses, £60 remains and is wagered on the next black spin. Winning that second spin returns £120 including stake, restoring the original £90 plus £30. Losing it leaves £0. After a success, the next cycle uses the new £120 bankroll: £40 first, then the remaining £80 if that bet loses. After two losses, “restarting” means allocating new money, not recovering from the same bankroll.
Cost and risk
On a standard European wheel, a specified two-loss fresh cycle has probabilitymathsProbabilityChance of an outcome, from 0 to 1 or 0% to 100%. One number: 1/37 = 2.70%.Read full → (19/37)^2 = 26.37%. The pattern creates a common +£30 outcome and a rarer full-cycle −£90 outcome, but it has no opportunity to magically replenish after depletion. Each cycle’s expected lossmathsExpected lossExpected value times total amount wagered; the average amount lost over a session or a period.Read full → is still determined by its total wagers, and repeated fresh cycles require separately budgeted money. A stop target alters when play ends, not the value of the bets.
Questions
No. The original £90 has been entirely staked and lost. A restart requires a new bankroll allocation.
If it wins, the two-spin sequence nets +£30; that possibility is offset by the −£90 two-loss path and the casino edge.
Comic relief

One win in two bets gains a third; two losses take the whole bankroll.
Sources
- RouletteDoc, “Tier et Tout system” — stated two-stage rule
- Roulette77. Strategy description and examples.
- Roulettesystemen, “Tier et Tout” — independently published two-stage description
- Wizard of Odds, Roulette Basics — standard even-money roulette rules
- Wizard of Odds, The Truth about Betting Systems