British hcper ,it’s not difficult.

There’s enough info,results over last 5 years or more.

To calculate the exact weight Irish horses should be given.

They seem to be well treated as they seem to win more races per entry,than the British horses.

Dancing on my own,first race winner today,was 6lb up from winning at aintree,don’t they get a 7lb penalty any more.

It won a competitive red rum chase at aintree,so surely a 10lb rise,

The last day. Won same race in 2022 and went up 8lb.

There are computers these days to calculate exact sums.