Course 1 (Men Open, Men Vet 40+)
Entry limit: 20
Course 2 (Men Supervet 55+, Women Open, Women Vet 40+)
Entry limit: 38
Course 3 (Men Ultravet 65+, Women Supervet 55+)
Entry limit: 44
Course 4 (Men Hypervet 75+, Women Ultravet 65+, Women Hypervet 75+)
Entry limit: 38
Course 5 (M/W16, adult intermediate)
Entry limit: 2
Course 6 (M/W14, adult beginner)
Entry limit: 10
Course 7 (M/W12)
Entry limit: 4
Course 8 (M/W10)
Entry limit: 5
Black
Suggested long classes: M21L
Entry limit: 15
Brown
Suggested long classes: M18L M20L M35L M40L M45L M50L W21L
Entry limit: 15
Blue
Suggested long classes: M16A M55L M60L M65L W18L W20L W35L W40L W45L W50L
Entry limit: 35
Green
Suggested long classes: M70L W16A W55L W60L
Entry limit: 25
Short Green
Suggested long classes: M75L M80L M85L W65L W70L
Entry limit: 35
Very Short Green
Suggested long classes: M90L W75L W80L W85L W90L
Entry limit: 8
Light Green
Suggested classes: M14A W14A
Entry limit: 15
Orange
Suggested classes: M12A W12A
Entry limit: 12
Yellow
Suggested classes: M10A W10A
Entry limit: 8
White
Entry limit: 12
Thirsk Urban event
See the EBOR website for full details
Boltby "Acorn" National event
See the CLOK website for full details