How are competition winners chosen?

You have bought your tickets. The draw date is approaching. How are competition winners actually chosen? The method varies more than most entrants realise, and it matters for whether you can trust the result. This guide covers random selection, when draws happen, what counts as a valid entry, and what to expect after your number comes up.

Random selection is the standard

Nearly all prize competitions pick a winner at random from every valid entry. Each ticket has an equal probability of being selected. There is no weighting by location, purchase time, or how many tickets someone bought (though buying more tickets gives you more entries in the pool, which mathematically improves your chance).

Your odds are: your tickets divided by total valid tickets. One ticket in a 2,000-ticket draw is 1 in 2,000. Five tickets in the same draw is 5 in 2,000, or 1 in 400.

How the random selection works technically

Many competition sites pick winners using a browser-based random number generator, often livestreamed on social media. Google's random number widget is a common choice. It looks transparent on camera, but the operator controls the browser and can rig the result in seconds; for example, by overriding Math.random() in DevTools before clicking generate. There is no audit trail, and viewers have no way to verify the draw was fair. If you see a draw being run with a random number generator on a livestream in a browser, you can presume the host could rig it to whatever number they want.

A proper draw should work like this: all valid entries (paid tickets and qualifying postal entries) go into the pool. A random number is generated within the range of valid ticket numbers. The ticket holder matching that number wins. This should not happen in the browser or anywhere the host controls. It should happen on a server, somewhere the host has no control over. The host should not be able to influence the result in any way.

On luckladder the draw runs automatically on the server when the competition closes, using a cryptographically secure random number generator. No human selects the winner, and the host cannot influence the outcome. The system picks the winning ticket from the valid entry pool and notifies the holder.

When the draw happens

Competitions close in one of two main ways:

Fixed date. The draw runs on a set date and time, whether or not all tickets have sold. If only 70% of tickets sold, the field is smaller than advertised and everyone who entered has better odds.

Sell-out. The draw runs the moment the last ticket sells. The field is exactly what was advertised. No surprises on ticket count.

Some competitions use a combination: a target sell-out date, but the draw runs early if all tickets sell before then. The terms should state which applies. Either method is fine as long as it is clear and automatic.

Manual draws vs automatic draws

Some operators still pick winners manually: a name from a hat, a livestreamed ball draw, or someone clicking a button. This is not necessarily dishonest, but it is harder to verify after the fact. Livestreamed draws at least give you a chance to watch the process.

Automatic draws on a platform are preferable because the process is consistent, auditable, and not subject to human interference. If a site never explains how the winner is picked, that is a gap in transparency.

What counts as a valid entry

Paid tickets that cleared payment are valid. Postal entries that meet all the formatting requirements and arrived before the deadline are valid. Each valid entry goes into the same pool.

Invalid entries are removed before the draw. Common reasons for disqualification: postal entry missing required details, entry received after the deadline, duplicate entries where the terms allow only one.

After the draw: what happens next

The winner is notified by email, usually within hours of the draw. On luckladder you can also check your entered competitions page. The host arranges delivery or collection. Both sides confirm the handover through the platform before any payout is released.

For tax on your winnings, read do you pay tax on competition winnings in the UK.