Games and odds · free tool

Result chart patterns: what random lists also do

A neat pattern in a list of results is easy to see and easy to over-read. Here is how often random lists show one, and what a list that swaps nearly every round looks like.

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Type or paste them. Spaces, commas, new lines or nothing between results all work. In digits mode every digit is one result, and big means 5 to 9 and small 0 to 4 (the common description; if your app shows big and small differently, paste its own B and S results in two-sides mode). In colours mode use G, R and V, or the words green, red, violet.

Try an example:
60results read
p = 0.80counts of each side against the expected shares: consistent with random
3longest streak of one side (usually 6 in a list this long)
over 99.9%of random lists this long hold a streak that long
15%of 1,000 random lists the same length looked unusual on at least one check
5.9%looked unusual on the counts alone (the 5% line)
48 runsabout 31 expected: unusual for random
11 of 12bets “the opposite after 2 in a row” that came off (50% by chance): unusual for random

2 of the 4 checks on these 60 results look unusual for random: the runs and the “opposite after 2” rule. Random lists this long look unusual on at least one check 15% of the time, so one odd check proves little, and none of it says anything about the next result.

What was checked in these 60 results
CheckYour listRandom listsVerdict
Count of each sideχ² = 0.1 on 1 degree of freedomusually below 3.8Consistent with random (p = 0.80)
Longest streak of one side3 small in a rowusually 6; 3 or more in over 99.9% of random listsConsistent with random (p = 1.00)
Runs (how often the result switches)48 runsabout 31 (usually 23 to 38)Unusual for random (p < 0.001)
Bet the opposite after 2 in a row11 of 12 (92%)50% (usually 25% to 75% for 12 bets)Unusual for random (p = 0.006)

Random lists look odd too

This draws 1,000 random lists the same length as yours, runs the same checks on each and counts how many look unusual. It uses random numbers from your browser on your own device. There is no money in it, nothing is saved or sent, and it is not any app’s game.

People read charts for patterns because the eye finds shapes, and random lists are full of them: streaks, zig-zags and repeats appear with no plan behind them. This page uses a list built to swap almost every round, the kind that looks like a code. It shows 48 runs (about 31 expected: unusual for random).

A pattern that has repeated twice has not promised a third. The checks count how often results switch and how long streaks run, then compare both with random lists; 15% of random lists this long look unusual on at least one check.

Paste your own list into the box above and every check updates. The example list was made by this site’s random generator, not taken from any app.

Common questions

Do random results contain patterns?

Yes, all the time. Streaks, runs of switching and repeating blocks all appear in random lists. Among random lists of 100 digits, about one in six is flagged by at least one of the five checks, so a neat pattern alone is no signal.

If a pattern has repeated before, will it repeat again?

Not because it repeated before. In random results each round starts fresh, so an earlier repeat gives the next round no push. A repeat can only be counted after it has happened.

What does unusual for random mean?

It means random results would rarely look like your list, with a chance below one in twenty. It does not say why the list looks that way, who made it, or that anything is wrong with an app. More results are the sensible next step.

Why does the page run several checks at once?

Each check looks for a different kind of pattern: counts, streaks, switching and a popular rule. Running several also shows how easily random lists trip at least one, which is why the simulation under the tool is worth a look.

Does this page keep or send the list I paste?

No. The list is read in your browser and nothing is stored or sent. The copy-link button puts the list in the link itself, after the # sign, which a website never receives.

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