You can find the Chippenham Harriers Club Championship Rules here in PDF format. These rules will be applied from 2022 onwards.
Chippenham Harrier Club Championship Rules
Summary
The detailed rules in the link, but here is a quick summary:
• Four Championship categories
• Score based on position to other Harriers (start at 30 pts, min 5 pts)
• Best race scores accumulated (drop worst two scores)
• Selected races from WRRL, WORL plus parkrun
• Prizes for category winners