1 Bet

Introduction

1bet is a simple keno-based game by TvBet, a supplier of live dealer games to Internet Casinos. The idea is simple, the dealer will draw one ball from a bin with 37 balls and the player bets on what it will be, much like roulette.

Rules

Balls numbered 0 to 36 are placed in a hopper.
The player may wager on the next ball drawn. There are a host of different bets, as shown below in the analysis section.
The dealer shall draw a ball.
Bets are adjudicated, the ball is replaced back in the hopper, and a new game begins.

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Analysis

The following table shows every bet available, how many balls would cause that bet to win, probability of winning, and expected return.

1 Bet

Bet	Pays	Winning Numbers	Probability	Return
Specific number	35	1	0.027027	0.945946
Ball in dozen	2.929	12	0.324324	0.949946
Ball in column	2.929	12	0.324324	0.949946
Ball in group of 3	11	3	0.081081	0.891892
Ball in group of 6	5.858	6	0.162162	0.949946
Ball in group of 18	1.953	18	0.486486	0.950108
Even/odd	1.953	18	0.486486	0.950108
Red/black	1.953	18	0.486486	0.950108
Under 9.5	3.515	9	0.243243	0.855000
Over 9.5	1.302	27	0.729730	0.950108
Under 18.5	1.85	18	0.486486	0.900000
Over 18.5	1.953	18	0.486486	0.950108
Under 27.5	1.255	27	0.729730	0.915811
Over 27.5	3.906	9	0.243243	0.950108
Under 14.5	2.343	14	0.378378	0.886541
Over 14.5	1.598	22	0.594595	0.950162
Under 22.5	1.528	22	0.594595	0.908541
Over 22.5	2.511	14	0.378378	0.950108