ATW (Advance Training World) have now opened entries for their 5ml event on 29 Nov. This will be run under the strict Covid-19 rules. The race has always clashed with the XC races but as these are not happening this year the Hatfield 5 is worth considering. It is a flat course from Hatfield University and a good one for a PB.
As far as I know there will be split start times based on estimated times put on the entry forms.