For those planning to attend or just have a bet from home, be aware that a total closure of a section of the M25 all weekend is likely to produce chaos on the roads in the area.
And it might also lead to non runners, as getting there from stables in Epsom or on the south coast will be difficult.
https://nationalhighways.co.uk/article/m25-braced-for-first-ever-planned-full-closure-as-drivers-warned-of-long-delays-and-told-to-only-travel-if-necessary/