Core races are the ones with a special significance to the club. Members are encouraged to attend these races. There are extra club championship points for competing in core races - see the Club Championship page for details.

In the current championship season (2023-2024) the dates of known core races are:

• 17-Dec-2023 - Sunday League XC Stevenage.
• 18-Feb-2024 - Sunday League XC Royston (postponed to 10-Mar provisionally).
• 25-Feb-2024 - London Winter Run 10k.
• 15-May2024 - Mid Week League Stevenage.
• 06-Jun-2024 - Mid Week League Royston.
• 19-Jun-2024 - Mid Week League Harlow.
• 23-Jun-2024 - Triffic Trail.
• 27-Jun-2024 - Mid Week League Trent park.
• 07-Jul-2024 - Ware 10 Miles.
• 10-Jul-2024 - Mid Week League Mob Match.
• 24-Nov-2024 - Hatfield 5 Miles.