HI, Please help me write a formula
to sort the 10 lowest scores out of the last 20 entered by date and either mark them or copy in the next col. So they can be added.

I can add and average the result.

The real and complete way to calculate HDCP is
5 or 6 games, sort the Lowest 1
7 or 8 games, sort the Lowest 2 and so forth,
9 or 10 Lowest 3
11 or 12 Lowest 4
13 or 14 Lowest 5
15 or 16 Lowest 6
17 Lowest 7
18 Lowest 8
19 Lowest 9
20 games Lowest 10

But if that's too complicated, I can live with 10 best of 20.
Thanks