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Roulette Betting Strategies · Negative progression · 7 min

ATM Roulette Strategy

ATM combines low (1–18) with the third dozen, then advances through four unequal stake pairs after misses. Its fourth pair makes a third-dozen hit a net loss, and no action is specified after a fourth miss.

Short answer

The stake pairs are 3/2, 9/6, 33/22, and 74/36. A low hit after prior misses nets +1, −2, −9, or −37 at those four stages.

groups
low and third dozen
base pair
3 + 2 units
European coverage
30 / 37
after fourth miss
no action stated

Steps and stopping boundary

Stake the first number of each pair on low and the second on the third dozenbetDozen1–12, 13–24 or 25–36, pays 2:1.Read full →: 3/2, then 9/6, 33/22, then 74/36. The groups are disjoint. A miss advances to the next pair, while a win returns to 3/2. No next action is stated after a fourth miss, so a run should stop there rather than assume a fifth pair. This analysis uses a single-zerowheelZeroThe single green pocket that no even-money, dozen or column bet covers; the source of the house edge. Also: single zero, 0.Read full → wheel and standard payoutsmoneyPayoutWhat a winning bet returns, quoted as “X to 1” on top of the returned stake.Read full →.

Per-spin outcomes

The final pair is especially important because a covered third-dozen result does not profit.

low / third-dozen pairlow hitthird-dozen hitmiss
3 / 2+1+1−5
9 / 6+3+3−15
33 / 22+11+11−55
74 / 36+38−2−110
All net figures subtract both components of the pair placed for that spin.

Worked example

After two opening misses, losses total 5 + 15 = 20 and the active pair is 33/22. A low hit earns 11 on that spin, so the cycle is still −9. At the fourth pair, a third-dozen hit returns 108 gross from the 36-unitmoneyUnitThe base stake a system or a player works in. Progressions are described in units so they apply at any table.Read full → dozen chipmoneyChipA token representing a fixed amount, placed on the layout to make a bet. Also: check.Read full →; against 110 total staked, that spin nets −2. It is covered in the sense that a bet wins, yet it is a losing result for the complete layoutequipmentLayoutThe printed betting grid on the table. Also: table, felt, cloth.Read full →.

Expectation and risk

Each pair covers 30 of 37 pocketsequipmentPocketOne of the 37 numbered compartments on the rotor. Also: slot, cup.Read full →, but a base spin has expected result −5/37. After preceding misses, a low hit produces cycle nets of +1, −2, −9, and −37 across the four stages, so the schedule is not a loss-recovery progressionstrategyProgressionAny rule that changes the stake based on previous results. Negative progressions raise it after losses, positive after wins.Read full →. The final pair places 110 units to pursue an outcome that can still net −2 on a covered dozen. A fourth miss loses 185 units across the stated sequence and reaches an unspecified boundary; neither a guessed continuation nor a larger bankrollmoneyBankrollThe total amount set aside for play. Bankroll management is deciding how much of it to risk per bet and per session.Read full → changes the negative expectation of the wagers made.

Questions

Does a third-dozen hit always count as a win?

No. At 74/36, its 108-unit gross dozen return is less than the 110-unit combined stake, so the net is −2.

What is the next stake after four misses?

No next pair is specified. Treating a fifth pair as part of the system would invent a rule.

Sources

  1. RouletteDoc, Strategy overview https://roulettedoc.com/strategy
  2. Roulette77, “ATM System” — stated stake pairs https://roulette77.us/strategies/atm-system
  3. Wizard of Odds, Roulette Basics — low and dozen payouts https://wizardofodds.com/games/roulette/basics/
  4. Wizard of Odds, The Truth about Betting Systems — progression expectation https://wizardofodds.com/gambling/betting-systems/
reviewed 2026-09-28model: European, single zeromethodology ↗sources ↗