Exact model

A UK Lotto line matches six in either round

Probability:
4.44 × 10⁻⁶%
Odds:
1 to (2.25 × 10⁷)
dBan
−73.5 dBan

One UK Lotto line has two independent chances to match all six numbers on one draw night. A double match is counted once.

Calculation

p = 2/N − 1/N² = 90,114,947 / 2,030,175,963,260,676, where N = C(59, 6) = 45,057,474

Assumptions

The current 2026 format uses two fresh sets of balls and two machines from the same 59-number pool. This counts one line on one draw night. Rules checked 25 October 2026.

Sources

  1. Allwyn: two UK Lotto rounds two-round format checked 25 October 2026
  2. National Lottery: Lotto winner story historical per-round 1 in 45,057,474 evidence