Lottery Duplicate Line Checker – Compare Your Lines
Paste your lottery lines below to find exact duplicates, count unique combinations and spot repeated groups. Two lines can look different on paper and still be the same combination. Compare complete selections for the same game and draw, keeping main numbers and extra numbers in separate pools.
Choose a game to check whether your combination is marked on this website.
Find duplicate lines in your list
Choose a game, confirm that your lines are for the same draw and enter one complete line per row. The comparison keeps your original rows visible and excludes invalid or incomplete lines from the valid totals. Enable JavaScript to use the tool, or follow the comparison steps below.
- Find duplicate lines in your list
- Complete line formats for all five games
- What counts as an exact duplicate?
- Four worked EuroMillions comparisons
- Check the game and draw context
- Count entries and unique combinations
- A repeatable comparison checklist
- Check marks on the shared board
- Choose the right tool for your question
What counts as an exact duplicate?
For this comparison, two entries are duplicates when they belong to the same game and draw and have identical complete number selections. Number order within a pool does not matter. Any extra numbers that the player chooses, such as Lucky Stars, are part of the line.
Sharing some numbers is a partial overlap. It does not make two complete lines identical. Also distinguish a player's selection from a drawn extra ball. For example, UK Lotto players choose six main numbers, not the drawn Bonus Ball.
Complete line formats for all five games
Each row must contain the player's full selection for the chosen UK game. Compare each pool independently. A number can appear in both a main and special pool, but it must not repeat within the same pool.
| Game | Main numbers | Selected special numbers |
|---|---|---|
| EuroMillions | 5 different numbers from 1–50 | 2 different Lucky Stars from 1–12 |
| Set For Life | 5 different numbers from 1–47 | 1 Life Ball from 1–10 |
| UK Lotto | 6 different numbers from 1–59 | None. Do not enter the drawn Bonus Ball. |
| Thunderball | 5 different numbers from 1–39 | 1 Thunderball from 1–14 |
| UK Powerball | 5 different numbers from 1–69 | 1 Powerball from 1–26 |
Changing the order of numbers within one pool does not create a new combination. Moving a number between the main and special pools can create a different line. For UK Lotto, one paid line is entered into both rounds of the same draw. Enter that line once for each actual entry, not once per round.
Four worked EuroMillions comparisons
These are fictional planning examples for one EuroMillions draw, not winning numbers. Use this reference line in all four comparisons.
Main numbers: 7, 16, 28, 35, 44
Lucky Stars: 3, 10
1. Reordered numbers: duplicate
Main numbers: 44, 7, 35, 16, 28
Lucky Stars: 10, 3
Sort each pool separately. The main numbers become 7, 16, 28, 35, 44 and the Lucky Stars become 3, 10. Both pools now match A exactly, so this is the same complete combination.
2. One changed Star: different line B
Main numbers: 7, 16, 28, 35, 44
Lucky Stars: 3, 11
All five main numbers match A, but Star 11 replaces Star 10. The complete selections differ. Comparing main numbers alone would wrongly label this a duplicate.
3. Four shared main numbers: different line C
Main numbers: 7, 16, 28, 35, 45
Lucky Stars: 3, 10
Four main numbers and both Stars match A. Main number 45 replaces 44, so this is a different complete line despite the substantial overlap.
4. Numbers in different pools: different line D
Main numbers: 3, 16, 28, 35, 44
Lucky Stars: 7, 10
The seven values are the same as A when mixed together, but 3 and 7 have changed pools. Keep the pools separate. A main number and a Lucky Star are not interchangeable.
The EuroMillions rules and odds guide explains valid selections and the probability calculation behind complete-line coverage.
Check the game and draw before comparing
Different games: keep separate lists for EuroMillions, Set For Life, Lotto, Thunderball and Powerball. A number appearing in two games does not make the entries duplicates. Their selection formats and results belong to different games.
Different draws: using A for one draw and A again for a later draw gives one planned line in each draw. Do not merge those records into a single-draw coverage total. Record the intended draw date alongside the numbers.
A line's current board status also cannot confirm its status in an earlier draw. For past winning numbers, select the dated page in the EuroMillions results archive.
Count entries and unique combinations separately
Suppose a plan for one draw contains these four entries:
- Reference line A.
- The reordered version of A from comparison 1.
- Line B with the changed Lucky Star.
- Line C with the changed main number.
There are 4 planned entries and 3 unique combinations: A, B and C. Entry 2 repeats A. It adds an entry, but no new complete combination. Line D is a separate comparison example and is not included in this four-entry plan.
For a list containing A, A, B, B, C, the tool reports 5 valid lines, 3 unique combinations, 2 extra repeated entries and 2 groups containing repeats. A and B are the two repeated groups. Invalid or incomplete rows are flagged separately and excluded from these counts.
Keep the original rows if you are checking an existing record. Flag the repeat rather than silently deleting a person's entry. A planning count does not establish whether tickets were bought or who owns them.
What unique coverage tells you
Someone else choosing your numbers does not change your individual line's chance of matching the draw. Repeating A within your own or your syndicate's entries does not introduce another jackpot combination. Using different complete lines instead of repeats increases the number of different jackpot combinations covered in the same draw.
This count is not the chance of winning any prize. Partly overlapping lines can share lower-tier matches, and prize entitlement depends on the actual entries and game rules. After comparing your list, choose Calculate odds for these unique lines to open the odds calculator with your selected game and unique-line count. Its multiple-line mode calculates jackpot coverage. Exact combined lower-prize chances also depend on which numbers the lines share.
A repeatable comparison checklist
- Group records by game and draw. Resolve missing draw dates before combining totals.
- Check that each selection is complete and valid. Keep incomplete or invalid rows separate until corrected.
- Sort main numbers and selected extra numbers independently. Preserve which pool each number belongs to.
- Compare the full sorted selections. Equal main and extra pools mean a duplicate. One changed selected number makes a different line.
- Assign the same reference to matching rows. For example, label both versions of A as A, while retaining their original entry records.
- Report both totals. State the number of entries and the number of unique combinations for that game and draw.
Check marks on the shared board
To check whether a complete line is currently marked here, open its game's Check your combination section and enter all selected numbers in their correct fields. Entering only some numbers searches for possible lines containing them and cannot identify one exact complete line.
The tool above compares only the list you enter. The shared board answers a different question: has a visitor marked this combination on the current board? A mark records a line on this website. It does not identify its owner, reserve numbers or establish how many official tickets share your numbers. Follow the annotated marked-combinations instructions for the screen controls and what each status means.
Carry the comparison into a group record
For an existing group, record a line reference, its numbers, the intended draw and the person responsible for checking the record. Keep planned selections separate from confirmation of any actual ticket purchase. The syndicate planning guide provides a copyable template and a worked handover example.
Frequently asked questions
Does reversing the number order create a different line?
No. Sort each number pool separately before comparing. The first worked example is still line A even though both the main numbers and Lucky Stars are written in a different order.
Are two EuroMillions lines with the same main numbers duplicates?
Only if their Lucky Stars also match. Line B in the examples has the same main numbers as A but a different Star, so they are different complete combinations.
Does a partial overlap mean I should discard a line?
No. Sharing some numbers does not make the complete lines duplicates. This guide identifies equality between selections, not which numbers to choose.
Can a board mark prove that my group bought a duplicate ticket?
No. The shared board records marks on Lottery-Checker. Compare your group's actual ticket records separately, including the game, draw and complete selections.
Choose the right tool for your question
This page checks for complete combinations repeated in your own list. Use the related pages for current board marks, probability calculations or organising a group's records.
Responsible use
A comparison helps you check records. It does not predict winning numbers. Keep any existing spending limit, only spend what you can afford to lose and verify real tickets and possible prizes officially.
Choose a game to check whether your combination is marked on this website.