Next month: December 2018
I also corrected a long-standing bad assumption that 5+bonus prizes get rolled over if they're not won (I've no idea where I got that from). This meant I had to regenerate every single individual main Lotto prize page.
I now no longer display main Lotto raffle info on the home page or on any individual main Lotto page from tonight's draw onwards. I also don't auto-scrape the official site's draw details page for raffle info any more.
It's now become tough (impossible?) to reverse calculate the main Lotto ticket sales for a draw that follows the previous draw that had a won jackpot (like tonight's draw because last Saturday's draw had 2 jackpot winners). The new game procedures don't seem to explain how the jackpot prize pool is reset for the draw following a jackpot win. Tonight had no jackpot winners, but the jackpot prize pool was reset to a "mysterious" £2m not mentioned in the procedures.
With every tier for tonight's main lotto draw having a fixed value individual prize, there's no way to reverse calculate the ticket sales. For rollover draws, though, it looks like (ignoring Camelot's boosts to guarantee a minimum £1m per jackpot winner or any rare capping that might take place) that the jackpot prize pool is the unwon jackpot prize pool from the previous draw plus 9.79% of the ticket sales for the latest draw.
So the ticket sales for a rollover draw are:
( The jackpot prize pool for the rollover draw minus
the rollover amount from the previous draw
)
mulitplied by 100
divided by 9.79
If there is a jackpot boost or cap, though, it appears that it'll also not be possible to reverse calculate the sales figures for any draw where that happens.
Previous month: October 2018