Oscar’s Grind holds the stake after a loss and raises it after a win, while limiting the next wager to the amount needed to reach a one-unit cycle profit. Reaching that target resets the cycle. Both the stake and current cycle profit belong in the record.
A complete example
Use one-unit opening bets and outcomes loss, loss, win, loss, win, win. The stakes are 1, 1, 1, 2, 2, 2. The cycle totals −1−1+1−2+2+2=+1 unit and resets. After the fifth result, the cycle stands at −1. A normal increase would request three units, but only two are needed to reach the+1 target, so the sixth stake stays at two.
Scroll to compare all columns
| State after spin | Cycle net | Next stake |
|---|---|---|
| First loss | −1 | 1 |
| Second loss | −2 | 1 |
| Win | −1 | 2 |
| Loss | −3 | 2 |
| Win | −1 | 2 |
| Win | +1 | 1 after reset |
Repeated losses do not raise the stake immediately
That feature can make the opening of a bad run look quiet. The wallet still declines one unit at a time. A ten-unit wallet loses all ten on ten consecutive opening losses, ending before the cycle recovers. Later in a cycle, the held stake may be larger because earlier wins raised it.
The long-run average cannot be inferred from a completed +1 cycle. The record also needs unfinished cycles, maximum stakes and the amount wagered. A high share of completed targets can coexist with less frequent, much larger losses.
The convention used here
The audited app source defines a configurable cycle target, initially one unit. After wins it raises the stake, then caps that request by the distance to the target. It resets when cycle net reaches the target. This page follows that convention rather than treating every version called Oscar’s Grind as identical.
Compare the append-and-cancel state in Labouchère and the steady stake in flat betting. Read how to compare simulations before interpreting the number of successful cycles.
Sources and scope
- Rules of Play for Table Games, Roulette. British Columbia Lottery Corporation. Double-zero standard payout table and placement. European pocket count is independently verified from native Wheel.
Publication date: not stated. Checked 2026-11-07.
- Roulette development source. Amenti Labs LLC. Game.swift Wheel, StrategyCatalog, App ProAccess/PurchaseStore/ChipEconomy/Engagement and PrivacyInfo. Source evidence, service behavior not independently retested.
Publication date: 2026-11-07. Checked 2026-11-07.
- Roulette probability derivation. Amenti Labs LLC. Fair independent pockets, fixed payouts, full outside loss on zero. Formula and all supported bets regression tested.
Publication date: 2026-11-07. Checked 2026-11-07.