Most people in Singapore know the TOTO basics: pick six numbers from 1 to 49 and hope. Fewer know how the money is actually split once the balls are drawn. Why did a Group 2 prize pay S$90,000 one week and S$40,000 the next? Why is Group 5 always exactly S$50? And what does a System 7 ticket win if you hit five numbers?
This guide breaks down the official TOTO prize structure from Singapore Pools' current game rules (dated 2 March 2026), shows the odds for every group, and walks through worked examples so you can calculate a payout yourself. Think of it as a manual TOTO prize calculator.
The Basics: How a TOTO Draw Works
TOTO is a 6/49 lottery. In each draw, Singapore Pools draws six winning numbers from 1 to 49, then one more number from the remaining 43. That seventh ball is the Additional Number. It only matters for Groups 2, 4 and 6.
- Draw days: Monday and Thursday, usually at 6.30pm. Sales close at 6pm on draw day (9pm for a cascade draw, which is drawn at 9.30pm).
- Price: S$1 per set of six numbers, GST included. An Ordinary bet (one set) costs S$1.
- Minimum to win: at least three of the six winning numbers. The Additional Number alone does not count towards those three.
- Claim window: prizes must be claimed within 180 days of the draw. Unclaimed money goes to good causes through the Tote Board.
The Prize Pool: Where Your S$1 Goes
Under clause 5.4 of the TOTO game rules, the prize pool for each draw is 54% of total sales, after GST is removed. With GST at 9%, that works out to roughly 49.5 cents of every S$1 ticket going back to players as prizes. The rest covers GST, Singapore Pools' costs and contributions to the Tote Board.
That 54% is then divided between the prize groups. Groups 1 to 4 get a fixed percentage of the pool, shared equally among all winning tickets in that group. Groups 5 to 7 pay a fixed dollar amount per winning combination, no matter how many people win.
TOTO Prize Structure Table (Groups 1 to 7)
Here is the full structure from Singapore Pools' rules, with the odds for a single S$1 Ordinary bet. The odds are standard 6/49 maths and match the figures Singapore Pools publishes.
| Group | Numbers matched | Prize | Odds (1 set) |
|---|---|---|---|
| Group 1 (Jackpot) | 6 | 38% of prize pool + snowball, minimum S$1,000,000 | 1 in 13,983,816 |
| Group 2 | 5 + Additional | 8% of prize pool + snowball | 1 in 2,330,636 |
| Group 3 | 5 | 5.5% of prize pool + snowball | 1 in 55,491 |
| Group 4 | 4 + Additional | 3% of prize pool + snowball | 1 in 22,197 |
| Group 5 | 4 | S$50 fixed | 1 in 1,083 |
| Group 6 | 3 + Additional | S$25 fixed | 1 in 812 |
| Group 7 | 3 | S$10 fixed | 1 in 61 |
Add them all up and the chance of winning any prize with one S$1 set is about 1 in 54. Most of those wins are the S$10 Group 7 prize.
The four percentages add up to 54.5% of the pool. The remainder pays for the fixed prizes in Groups 5, 6 and 7. Because those fixed prizes are paid per winning combination, a draw with lots of small winners does not reduce what each Group 5 to 7 winner receives.
Why Groups 2 to 4 change every draw
Groups 2, 3 and 4 have no guaranteed minimum. Their value depends on two things: how much was sold for that draw, and how many winning tickets share it. A heavily bought draw with one Group 2 winner can pay a six-figure sum. A quiet draw with four Group 2 winners might pay a fraction of that. This is why the official results page shows a different share amount for these groups every time.
Snowballing and the S$1 Million Guarantee
Singapore Pools guarantees the Group 1 jackpot will never be less than S$1,000,000. If 38% of the pool comes in lower, Singapore Pools tops it up.
If nobody wins a group, the money rolls over (snowballs) to the same group in the next draw:
- Group 1: the jackpot amount, excluding the S$1 million guaranteed portion, carries forward to the next draw. It keeps growing until someone wins or a cascade is triggered.
- Groups 2, 3 and 4: each snowballs into its own group in the next draw until won. These never cascade.
Cascade Draws: When the Jackpot Must Be Paid Out
The jackpot cannot snowball forever. Under the current rules, if Group 1 goes unwon for four consecutive draws, the fourth draw becomes a cascade draw. In practice, Singapore Pools announces a cascade after three draws without a Group 1 winner, and that draw is moved to 9.30pm with sales open until 9pm.
If no one hits six numbers in the cascade draw, the whole jackpot drops to the next group that has winners:
- Group 2 first The jackpot is shared equally among all Group 2 winning shares, on top of their normal Group 2 prize.
- Then Group 3, 4, 5, 6 and 7 If a group has no winners, the jackpot moves down one level. In theory it could end up split among thousands of Group 7 tickets, though this almost never happens because Groups 2 and 3 usually have winners.
- Reset if no one wins anything Only if every group from 2 to 7 has zero winners does the jackpot carry forward and the cascade count start again.
Cascade draws are where the big "TOTO S$10 million draw" headlines come from. For example, the 13 July 2026 cascade draw was estimated at around S$10 million beforehand and was eventually split by two tickets at a total of S$12.8 million. We cover cascade strategy (and its limits) in our guide on how to win TOTO.
Worked Example: Calculating Prizes for One Draw
Let's use a made-up draw to show how the percentages turn into dollars. Say total sales for a Monday draw are S$5,450,000, including GST.
- Remove GST S$5,450,000 ÷ 1.09 = S$5,000,000 in net sales.
- Work out the prize pool 54% of S$5,000,000 = S$2,700,000.
- Split by group Group 1 = 38% = S$1,026,000. Group 2 = 8% = S$216,000. Group 3 = 5.5% = S$148,500. Group 4 = 3% = S$81,000.
- Divide by winners If there are 2 Group 2 tickets, each gets S$108,000. If there are 30 Group 3 tickets, each gets S$4,950. If there are 120 Group 4 tickets, each gets S$675.
Groups 5, 6 and 7 stay at S$50, S$25 and S$10 regardless. To estimate real numbers, check the sales figure and winner counts on Singapore Pools' results page after the draw.
System Entries: How System 7 to System 12 Prizes Multiply
A System bet lets you choose more than six numbers. Singapore Pools then buys every possible six-number combination from your selection, at S$1 each. A single winning draw can therefore produce several winning combinations across different groups.
| Bet type | Numbers picked | Combinations | Cost | Jackpot odds |
|---|---|---|---|---|
| Ordinary | 6 | 1 | S$1 | 1 in 13,983,816 |
| System Roll | 5 + any | 44 | S$44 | 1 in 317,814 |
| System 7 | 7 | 7 | S$7 | 1 in 1,997,688 |
| System 8 | 8 | 28 | S$28 | 1 in 499,422 |
| System 9 | 9 | 84 | S$84 | 1 in 166,474 |
| System 10 | 10 | 210 | S$210 | 1 in 66,590 |
| System 11 | 11 | 462 | S$462 | 1 in 30,268 |
| System 12 | 12 | 924 | S$924 | 1 in 15,134 |
Notice the pattern: the odds improve exactly in line with the cost. A System 12 is 924 Ordinary bets bundled together. You are not getting better value per dollar, just more combinations.
What a System 7 wins
We worked through every combination for a System 7 (seven numbers, seven sets). Here is what you receive depending on how many of your seven numbers are drawn:
| Your 7 numbers contain | Prizes won |
|---|---|
| 6 winning + Additional | 1 × Group 1, 6 × Group 2 |
| 6 winning | 1 × Group 1, 6 × Group 3 |
| 5 winning + Additional | 1 × Group 2, 1 × Group 3, 5 × Group 4 |
| 5 winning | 2 × Group 3, 5 × Group 5 |
| 4 winning + Additional | 2 × Group 4, 1 × Group 5, 4 × Group 6 |
| 4 winning | 3 × Group 5, 4 × Group 7 |
| 3 winning + Additional | 3 × Group 6, 1 × Group 7 |
| 3 winning | 4 × Group 7 |
The "5 winning + Additional" row matches the example in Singapore Pools' own rulebook. Using our made-up draw above, that System 7 would collect S$108,000 (Group 2) + S$4,950 (Group 3) + 5 × S$675 (Group 4) = S$116,325.
A simpler case: your System 7 contains 4 winning numbers and no Additional Number. You get 3 × S$50 + 4 × S$10 = S$190 for a S$7 ticket. That is the kind of result that makes System 7 feel generous, but remember it only happens when four of your seven numbers come up.
Bigger systems at a glance
For a System 12 that contains all 6 winning numbers plus the Additional Number, you would hold 1 Group 1 share, 6 Group 2 shares, 30 Group 3, 75 Group 4, 150 Group 5, 200 Group 6 and 200 Group 7. That is one ticket collecting from every single prize group, which is why System 12 wins make the news. It also costs S$924 per draw.
Group TOTO, iTOTO and Sharing a Win
Two official ways exist to split a bet:
- Group TOTO splits one entry into up to 10 equal tickets (minimum S$7 per unit). Any prize is divided equally between the tickets. Good for friends or colleagues sharing a System entry, as each person holds their own ticket.
- iTOTO lets you buy a portion of a large System entry (System Roll to System 12) that Singapore Pools offers in units. Your prize is based on how many units you hold. Prize money for unsold units goes to good causes.
Hongbao Draw and Other Special Draws
Each Chinese New Year, Singapore Pools runs the TOTO Hongbao Draw with a much larger guaranteed Group 1. The 2026 Hongbao Draw on Friday, 27 February offered S$12,000,001 and was shared by three tickets of S$4 million each. The prize groups work exactly the same way in special draws; only the guaranteed jackpot is higher. Because more people play, Group 2 to 4 shares can be larger, but they are also split among more winners.
Using a TOTO Prize Calculator Correctly
Online TOTO prize calculators and results checkers are handy, but they can only be as accurate as the data you feed them:
- Groups 5 to 7 are always exact: S$50, S$25 and S$10 per winning combination.
- Groups 1 to 4 need the actual share amounts from that draw's official results. Any calculator that "predicts" Group 2 to 4 values before the draw is guessing.
- System bets need the correct combination counts (like the System 7 table above). Singapore Pools' rules, clause 5.16, list them for every system size.
When in doubt, scan your ticket with the Singapore Pools app or check at an outlet. The official result is the only one that counts.
Keep It in Perspective
TOTO returns roughly half of what is spent to players as prizes, so over time players as a group lose about half their stake. That is by design: the proceeds fund good causes. Treat a ticket as a small entertainment cost, set a fixed budget, and do not chase losses with bigger System bets. If you play casino games as well, the same habits apply. Our responsible gambling page has practical tools, and if you want to know how Singapore's legal 4D game compares, see how to buy 4D online.
Source: Singapore Pools, TOTO Game Rules (dated 2 March 2026) and Lottery Betting FAQ. Odds calculated from 6/49 combinatorics. Prize examples are illustrative only.