Ayr ‘3 Castles’ Duathlon [Show slideshow] 12► Some highlights from the Ayr ‘3 Castles’ Duathlon. All copyright Kenny Girvan. 2 Responses to Ayr ‘3 Castles’ Duathlon Jamie strathearn says: 03/01/2016 at 09:42 Hi could someone please contact me about how I sign up for the 2016 duathlon in aye or send me a link… thank you. .. Reply Steve White says: 03/01/2016 at 11:56 Jamie Confirmed arrangements for this year’s Duathlon will probably appear around the end of this month on EntryCentral.com. I suggest you follow Twitter feeds @EntryCentral and @AyrodynamicTri to be notified when the race opens for entry. Reply Leave a Reply Cancel reply Your email address will not be published. Required fields are marked *Comment Name * Email * Website( optional ) Protected with IP Blacklist Cloud Notify me of follow-up comments by email. Notify me of new posts by email.