Many Lotto players check their tickets with care after each draw, wondering if certain combinations might still return a prize. One that often raises eyebrows is matching a single main number alongside the Bonus Ball.
There is also plenty of confusion about how the Bonus Ball actually works, what it applies to, and which prize tiers it can affect. Different explanations circulate, which makes it easy to misread a ticket or expect a payout that is not part of the rules.
This blog post clears up whether 1 number plus the Bonus Ball wins anything, explains the Bonus Ball’s role in the UK Lotto prize structure, and shows how to check and claim if your numbers qualify. As always, set limits that suit you and only play if it remains affordable and enjoyable.

In each standard UK Lotto draw, six main numbers are drawn from one pool, then a Bonus Ball is drawn from the remaining numbers. The Bonus Ball only matters if a ticket has already matched five of the six main numbers.
If a ticket matches five main numbers, the Bonus Ball offers the chance to move from the five-number prize to the higher five-plus-Bonus tier. Matching all six main numbers wins the jackpot, so the Bonus Ball is not relevant in that case.
Crucially, the Bonus Ball does not create a prize for tickets with fewer than five main matches. Matching one or two main numbers along with the Bonus Ball does not qualify for any payout or free entry.
With that in mind, what happens if you only hit one main number and the Bonus Ball?
Matching one main number and the Bonus Ball in a UK Lotto draw does not qualify for a prize. The prize table does not include this combination.
Prizes start from matching two main numbers, and the Bonus Ball is only taken into account when a ticket has exactly five main matches. If your ticket shows just one main number plus the Bonus Ball, there is no payout or free entry.
Knowing that, it helps to see where the Bonus Ball does make a difference.
UK Lotto prizes are based on how many main numbers a single ticket matches. The jackpot is awarded for matching all six main numbers.
When a ticket matches five main numbers, there are two outcomes. Five main numbers on their own return a smaller cash prize, while five main numbers plus the Bonus Ball are worth substantially more.
For all other tiers, the Bonus Ball has no bearing. Matching two main numbers usually returns a free entry to a future draw, while matching three or four main numbers results in fixed cash prizes that increase with each extra main match.
The key point is that the Bonus Ball only applies to tickets already showing five main numbers.
The chance of a ticket matching exactly one main number and the Bonus Ball is roughly 1 in 28. It is a relatively uncommon outcome when viewed across all tickets, though it does occur often enough for players to notice it from time to time.
Even so, this combination is not part of the prize table, so it does not pay out.
If you want to check a ticket carefully, here is the cleanest way to read the results.
Start by comparing your ticket to the six main numbers drawn. If your ticket shows five main matches, then check whether one of your remaining numbers is the Bonus Ball. That is the only scenario where the Bonus Ball affects the prize.
If you have fewer than five main matches, the Bonus Ball will not change the outcome. It is useful to distinguish clearly between the main numbers and the Bonus Ball when reviewing results, and to use official results pages or an accredited checker to avoid misreading a line.
Once you know a prize has been won, the next step is understanding how claims work at different levels.
Matching five main numbers plus the Bonus Ball qualifies for the £1,000,000 tier. Paper tickets should be stored safely and, ideally, signed so ownership is clear. Smaller shop-bought wins can often be paid at the retailer, while high-value prizes, including five-plus-Bonus, are claimed through official National Lottery procedures.
For larger claims, players usually arrange an appointment through the National Lottery, present identification, and provide the winning ticket or proof of purchase. Online players are typically notified through their account and guided through the claim process. Time limits apply, so it is worth checking the official website for current deadlines and requirements.
Understanding the claim route is only part of the picture. It also helps to clear up a few myths that can lead to disappointment.
A frequent misunderstanding is that matching the Bonus Ball alongside any number of main matches guarantees a prize. It does not. The Bonus Ball only comes into play when a ticket has exactly five main matches.
Another belief is that hitting the Bonus Ball on its own, or with one or two main numbers, unlocks a special award. This is not part of the prize table. Only the combinations listed in the official breakdown are paid.
Some players also assume the Bonus Ball improves outcomes across all tiers. In reality, it is limited to one specific situation and has no effect on tickets with fewer than five main matches.
If you choose to play, keep it within a budget that works for you. If gambling starts to affect your well-being or finances, seek help early. GamCare and GambleAware offer free, confidential support. Understanding how the Bonus Ball actually works makes it easier to set expectations and check results with confidence.
*All values (Bet Levels, Maximum Wins, etc.) mentioned in relation to this game are subject to change at any time. Game features mentioned may not be available in some jurisdictions.
**The information provided in this blog is intended for educational purposes and should not be construed as betting advice or a guarantee of success. Always gamble responsibly.