How RaffleScout's Live Odds System Works
A plain-English explanation of how we calculate live odds for your chosen spend, why they change as tickets sell, and how to use them to compare competitions.
What "live odds" actually means
Most operator sites quote odds based on the maximum ticket count — for example "1 in 50,000". That figure assumes every ticket will sell. In reality, many competitions draw before they sell out, which means your real chance of winning is often much better than the headline number.
RaffleScout's live odds reflect what your odds would be **right now** if you bought tickets at this moment, based on how many tickets have actually sold so far.
The formula
For a single ticket, your live odds are:
- Live pool = tickets sold so far + 1 (your ticket)
- Live odds = 1 in (live pool)
We add 1 because, until you buy in, you are not in the draw. Only sold tickets enter the prize draw on the closing date.
When you choose a spend amount (£1, £3, £5, £10, £20 or £25), we work out how many tickets that buys at the operator's ticket price, then divide the live pool by that number:
- Tickets for your spend = floor(spend ÷ ticket price)
- Live odds for your spend = 1 in (live pool ÷ tickets for your spend)
Example: A competition has sold 4,000 tickets at £2.50 each. You pick £10 spend.
- Tickets you would get: £10 ÷ £2.50 = 4 tickets
- Live pool: 4,000 + 4 = 4,004
- Live odds for £10: roughly 1 in 1,001
The same competition's headline odds at a 50,000 maximum would be 1 in 12,500 per ticket — a very different picture.
Why odds change over time
Live odds are dynamic. Every time more tickets sell, the live pool grows and the odds get longer. That is why a competition can look great early in its run and less attractive once it has been heavily promoted.
The flip side: if a competition is not selling well as the draw date approaches, its live odds stay favourable. Some experienced players watch for this — drawing on the stated date is a Government Voluntary Code expectation for signatories, regardless of how many tickets sold. See our [guide to the Voluntary Code](/guides/government-voluntary-code-prize-draws) for more.
Max odds if sold out
Underneath the live odds figure, we also show the maximum odds if the competition sells out completely. This is the worst-case scenario for your spend — if every available ticket sells before the draw, this is the number you would be playing at.
The gap between live odds and max odds tells you how much headroom the competition has. A small gap means it is already nearly full; a large gap means there is plenty of room for the odds to lengthen if it gets popular.
Choosing your spend
The spend selector at the top of the home page and competitions page defaults to £10. Change it to match what you would actually spend, and the live odds, sorting and best-odds rankings update instantly across the site.
This matters because the best-value competition for someone spending £1 is not necessarily the best-value competition for someone spending £25. Higher ticket prices often mean fewer total tickets, which can flip the rankings depending on your budget.
What we do not include
To keep things clear, live odds only count the ticket pool. They do not include:
- Bonus or free entries operators sometimes give for sharing on social media
- Postal entry routes (which are required by UK law as a free alternative)
- Multi-prize draws where you might win a smaller secondary prize
For headline competitions, the live odds figure is the cleanest single number for comparing one competition to another. For multi-prize draws, always check the operator's full T&Cs.
Where the data comes from
Tickets sold figures are pulled from operator data via our content management system. We update them regularly, but there can be a short lag between a ticket being sold on the operator's site and the figure refreshing on RaffleScout. For competitions that are filling up very quickly, treat the live odds as a recent estimate rather than a millisecond-accurate count.
If a competition does not show a tickets-sold figure, it is usually because the operator does not publish that data publicly. In those cases we fall back to showing the maximum-odds figure only.
Frequently Asked Questions
Why do my live odds get worse after I buy?
Because more tickets are now in the draw. Every additional ticket sold — including yours — increases the pool size and lengthens the odds for everyone, including you. This is normal and applies to every prize draw, not just RaffleScout listings.
Are live odds guaranteed?
No. They are a snapshot based on the most recent tickets-sold data we have. The final odds at draw time depend on how many tickets sell between now and the closing date.
Why does the odds figure change when I change my spend?
Because more spend buys more tickets, and more tickets means a better share of the pool. £10 at a £2.50 ticket price gives you 4 entries; £25 gives you 10. The live pool barely changes, but your chance of being one of the winning entries goes up roughly in proportion.
Should I always pick the competition with the best live odds?
Not necessarily. Live odds are one signal. You should also look at the prize value relative to ticket price (expected value), the operator's track record and Voluntary Code status, and how close the competition is to its draw date. See our [guide to finding the best odds competitions](/guides/how-to-find-best-odds-competitions-uk) for the full picture.
[Browse competitions sorted by live odds for your spend →](/competitions)
This guide was last updated in May 2026.