Double Ball Roulette: two balls, two winning numbers
Double Ball Roulette fires two balls onto one wheel at the same time. Inside bets win if either ball hits, at lower pays. Outside bets need both balls to land in your area, at higher pays.
Reviewed Oct 15, 2026
Answer first
90s- 01A straight-up bet pays 17 to 1 for one ball and 34 to 1 if both hit.
- 02Red, black and other even-money areas pay 3 to 1, but both balls must land there.
- 03On a single-zero wheel the best bet is one number, at about 2.8% house edge.
Key numbers
Double Ball in four numbers
In short
Key takeaways
- Two balls give two results each spin.
- Inside bets win on either ball.
- Outside bets need both balls.
- The both-on-one-number bet costs more.
On the wheel
One spin, two results
Ball one
Lands on red 17
Ball two
Lands on black 8
Straight on 17
Wins 17 to 1
Bet on red
Loses: ball two is black
The wheel shown is single zero.
Pay table
Double Ball payouts (single zero)
Glance before you bet
| Bet | Wins when | Pays |
|---|---|---|
| One number | Either ball hits | 17 to 1, or 34 to 1 if both |
| Split | Either ball hits | 8 to 1, or 16 to 1 if both |
| Street | Either ball hits | 5 to 1, or 10 to 1 if both |
| Dozen or column | Both balls in it | 8 to 1 |
| Red, black, odd, even, high, low | Both balls in it | 3 to 1 |
| Both balls on one number | Both on your pick | Up to 1,300 to 1 |
Pays follow the Evolution live game; tables can differ.
How a round works
You place bets on a normal roulette layout while the timer runs. The dealer then launches two balls from a device on the wheel, so both spin at once.
When both balls stop, the game marks two winning numbers. Each bet is settled against both results.
If both balls land in the same pocket, inside bets on that number pay double.
Chance and house edge by bet
| Bet | Chance to win | House edge |
|---|---|---|
| One number | About 1 in 19 | About 2.8% |
| Split | About 1 in 9.6 | About 3.0% |
| Street | About 1 in 6.5 | About 3.4% |
| Red or black | About 1 in 4.2 | About 5.3% |
| Dozen | About 1 in 9.5 | About 5.3% |
Our own math for a single-zero wheel.
Why outside bets cost more
On a single-zero wheel, each ball lands on red 18 times in 37. Both balls need to do it, which happens about 24% of the time. A 3 to 1 pay returns $4 for $1, so the house keeps about 5.3%.
A normal red bet on the same wheel keeps only about 2.7%.
Sequence
Playing Double Ball sensibly
Step 01
Check the wheel
Single zero is far cheaper than double zero.
Step 02
Prefer single numbers
They carry the lowest edge here.
Step 03
Treat outside bets as costly
Both balls must agree.
Step 04
Keep the jackpot small
It is a long shot.
Step 05
Set a time limit
Live rounds run fast.
Where you can play
Double Ball Roulette is mostly a live dealer game streamed from a studio. In US states with legal online casinos, which live games you see depends on the licensed operator.
A few land casinos have run two-ball wheels, but they are rare. Most US floors deal standard double-zero roulette.
Floor rules
Double Ball terms
Know before you sit
- Inside bet
- Numbers on the grid; either ball can win it.
- Outside bet
- Areas like red or dozens; both balls must land there.
- Double hit
- Both balls in the same pocket.
- Jackpot bet
- A bet that both balls hit one chosen number.
Checking the math yourself
For one number, a single ball hits 1 time in 37. The chance that exactly one ball hits is about 5.3%, and both hit about 0.07%. Paying 17 on one hit and 34 on two returns slightly less than you stake over time.
That gap is the 2.8% house edge.
Cost per 100 spins at $5 (rough)
| Bet | Expected loss |
|---|---|
| One number | About $14 |
| Red or black | About $27 |
| Normal European red | About $14 |
Single-zero wheel; rough figures.
Common mistakes
- Thinking red pays even money
- Here it pays 3 to 1 but needs both balls.
- Ignoring the wheel type
- Double zero raises every edge.
- Chasing the jackpot
- It hits about once in 1,369 spins per number.
- Betting faster than planned
- Two results feel like more action.
Keep reading
Related pages
Go play
Where to play in Las Vegas
Tap a resort — each row opens that casino’s White Gambling page (hours, game mix, floor facts). Venues with this game in official counts, sorted high to low.
Open a casino page
Real listings · not adsAfter the 90 seconds
Questions before and after you play
A 90-second guide cannot cover every table moment. Tap a group, then a question — answers are short paragraphs, not one-liners.
01Basics
What is Double Ball Roulette?
A roulette game where two balls are launched each spin, giving two winning numbers.
Who makes it?
The live version comes from Evolution, the live dealer studio company. House rules can vary, so check the table placard or ask the dealer.
Is the layout different?
No, it is the normal layout, but the pays are changed. House rules can vary, so check the table placard or ask the dealer.
02Payouts
What does one number pay?
17 to 1 if one ball hits it and 34 to 1 if both do. House rules can vary, so check the table placard or ask the dealer.
What does red pay?
3 to 1, and both balls must land on red. House rules can vary, so check the table placard or ask the dealer.
What is the top pay?
Up to 1,300 to 1 for both balls on one chosen number. House rules can vary, so check the table placard or ask the dealer.
03Value
Which bet is best?
A single number on a single-zero wheel, at about 2.8% house edge. House rules can vary, so check the table placard or ask the dealer.
Is it better than normal roulette?
No. Normal single-zero roulette keeps about 2.7% on every bet. House rules can vary, so check the table placard or ask the dealer.
Can a system beat it?
No. Every spin is independent. House rules can vary, so check the table placard or ask the dealer.
Sources
- Wizard of Odds — Double Ball Roulette Not from a registry (Reference source, not an official registry)The gaming industry’s standard reference for casino-game math, by actuary Michael Shackleford. Not an official registry; our calculators compute these numbers independently. · accessed Oct 15, 2026Rules, pays and house edge by bet
- Evolution — Double Ball Roulette Not from a registry (Reference source, not an official registry) · accessed Oct 15, 2026Game maker description
- Pennsylvania Gaming Control Board · accessed Oct 15, 2026Licensed online casinos and live dealer studios
- National Council on Problem Gambling — Help and resources Not from a registry (Reference source, not an official registry) · accessed Oct 15, 2026Free, confidential help: call or text 1-800-GAMBLER