Why is there a 50km and 100km option? We want to cater to people of all abilities but still provide a challenge you can feel like you conquered. You will have the option to choose between the 50km and 100km option when signing up. By cahill|2021-05-05T11:18:16+00:00September 1st, 2018|0 Comments Cheers! FacebookTwitterLinkedInWhatsAppPinterestEmail About the Author: cahill Leave A Comment Cancel replyComment Save my name, email, and website in this browser for the next time I comment.