Lottery Lab · UK Lotto experiment

New UK Lotto Two-Round Backtest

What happens when the same six-number Lotto line gets two separate chances on every draw night? This experiment uses the new two-round format introduced in June 2026, enters one £2 line into Round 1 and Round 2, and measures the fixed-prize return from both rounds.

What is being tested? 6 numbers × both Lotto rounds

One £2 line is replayed through Round 1 and Round 2 on every complete draw night from 10 June 2026 onward.

New Lotto · Two-round experiment

What happens when one £2 Lotto line is replayed through both rounds?

This backtest uses only the current two-round Lotto game. One six-number line costs £2 per draw night and is checked independently against Round 1 and Round 2. Start with the six hottest numbers, then compare the coldest six, a random line or your own numbers against exactly the same completed draw nights.

Comparable era: the test begins on 10 June 2026, the first draw night where one £2 Lotto line entered both Round 1 and Round 2. Older single-round Lotto draws are deliberately excluded. The page reads the local Data Manager era lotto_6_59_two_round_2026 and only admits draw nights where both rounds are present.

Loading completed New Lotto draw nights and calculating the backtest…
Hottest 6 example

£2 line · Round 1 + Round 2
Quick comparison Same draw nights · same two rounds

Compare hindsight-selected hot numbers with the coldest six and a fresh random Lotto line.

Try your own line

Try your own 6 Lotto numbers

Pick six different numbers from 1 to 59. The same line will be replayed through both rounds of every complete New Lotto draw night.

Select six different numbers from 1 to 59.

0 of 6 selected
Currently showing Six most-drawn numbers
Draw nights played — Each £2 line entered both rounds.
You would have paid — £2 per complete draw night.
Fixed prizes returned — Jackpot matches: —
Net after fixed prizes — Fixed-prize return: —
Historical fixed return —
Fixed-prize benchmark 36.4%
Difference —

The 36.4% benchmark covers Match 2 through Match 5 + Bonus under the current two-round prize matrix. The variable Match 6 jackpot is deliberately excluded from both the benchmark and cash-return calculation.

How did the line perform in each round?

Round 1 and Round 2 are independent, but the same £2 line enters both.

Round 1 fixed prizes — — winning rounds
Round 2 fixed prizes — — winning rounds
Draw nights with any prize — — nights paid in both rounds

Prize-tier hit summary

Fixed cash tiers are valued exactly. Match 6 is counted separately because the Lotto jackpot changes from draw to draw and can be shared.

Why Match 6 is separate: Lotto does not have one fixed jackpot value. The Lab will count any historical Match 6 hits, but it will not invent a cash value for them.

What this shows: this is a hindsight test, not a prediction. The Hottest 6 are selected from the same New Lotto rounds they are replayed through, so they receive the benefit of hindsight. The comparison is useful precisely because Hottest 6, Coldest 6, Random 6 and your own six numbers all face the same two-round history and the same prize rules.

What the result means

Two rounds change the ticket structure — not the randomness

The useful comparison is how much of the cost of repeatedly chasing the Lotto jackpot would have been recovered through the fixed prize tiers. Because the jackpot itself varies, this page keeps Match 6 separate rather than pretending it has a standard cash value.

The important comparison is money in versus fixed prizes back. Once the backtest loads, this section will translate the result into the percentage of £2 ticket spend recovered.