Lottery Lab · EuroMillions experiment

EuroMillions Hot Numbers Backtest

What would have happened if you had played the five most-drawn EuroMillions numbers and two most-drawn Lucky Stars in every current-format draw? Replay the idea across the full 5-from-50 + 2-from-12 era, then compare it with the coldest numbers, a random line or your own 5 + 2 selection.

What is being tested? 5 main numbers + 2 Lucky Stars

Every line is replayed through the comparable EuroMillions matrix from 27 September 2016 onward.

Current-format EuroMillions experiment

What if you had played the hottest 5 + 2 line in every draw?

The test starts on 27 September 2016, when the present 12-Lucky-Star pool began. That gives every current main number and every current Lucky Star the same opportunity to appear throughout the comparison.

Important: this version measures number-match results rather than pretending EuroMillions has fixed cash prizes. Prize values below the jackpot vary by draw, so Lottery Lab counts the exact match tier reached and keeps the monetary return calculation for a future historical-prize version.

Loading current-format EuroMillions history and calculating the backtest…
Hottest 5 + 2 example

Quick comparison Same 2016+ archive · same 5 + 2 matrix

Compare two hindsight-selected extremes with a fresh random valid EuroMillions line.

Main-number appearances
Lucky Star appearances
Try your own line

Choose your own 5 + 2 EuroMillions line

Pick five main numbers from 1 to 50 and two Lucky Stars from 1 to 12. Your line will be replayed through exactly the same current-format draw archive.

Build one valid EuroMillions line.

0 of 5 mains · 0 of 2 Lucky Stars
Main numbersChoose 5 · 1–50
Lucky StarsChoose 2 · 1–12
Currently showing Hottest 5 + 2
Draws played — One line in every comparable draw.
Ticket spend — Illustrated at £2.50 per UK line.
Prize-winning draws — Across the 13 number-match tiers.
Historical win rate — Number-match prizes only.
Historical win rate —
Theoretical any-prize rate 7.71%
Difference —

The exact current-matrix probability of landing one of the 13 EuroMillions number-match prize tiers is 7.71%, or about 1 in 12.97. UK Millionaire Maker is a separate code draw and is not part of this comparison.

Highest match tier reached —

All 13 EuroMillions prize-tier hits

Each row shows how many times this exact 5 + 2 line would have landed that match category. Cash values are deliberately not estimated because EuroMillions payouts vary between draws.

Why there is no “money returned” figure yet: EuroMillions number-match categories have variable prize values. A future version can add real historical UK prize amounts draw by draw; this version does not substitute averages or invented fixed values.

Why the hot line can look unusually strong: the hottest main numbers and Lucky Stars are chosen using the same completed history they are then replayed through. That is deliberate hindsight bias. It makes this a useful “what would have happened?” experiment, but not evidence that those numbers have become more likely in the next draw.

What the result means

Hindsight can improve the historical score without improving the next-draw odds

With more than a thousand comparable draws, the difference between the hindsight-selected hot line, cold line and random line can be striking. The key is understanding why: hot and cold lines are defined by the history after it happened.

The useful comparison is the historical winning-draw rate. Once the archive loads, this section compares the selected line with the theoretical chance of landing any EuroMillions number-match prize.