A clear breakdown of Singapore 4D odds, the prize tiers, expected value, and how Big and Small bets really compare.
There are 10,000 possible four-digit numbers from 0000 to 9999. The chance that your specific number is drawn as first prize is 1 in 10,000. Because 23 numbers are drawn each session, your chance of landing in any prize category with a Big bet is roughly 1 in 435.
Each prize tier pays a fixed amount per $1 bet. Multiplying each payout by its probability gives the expected value of a bet. For 4D the expected return is below the amount wagered, which is the house edge that funds the operator and prizes.
A Big bet spreads your stake across all 23 prizes for more frequent but smaller wins. A Small bet concentrates on the top three prizes for larger payouts but fewer chances. Neither changes the underlying odds of your number being drawn.
No strategy overcomes the house edge over time. Use the odds to set realistic expectations and a sensible budget, and treat any analysis, including 4D Insights, as a way to inform selection rather than to predict outcomes.