Good morning all,
Dan from Substance projects has released the preliminary schedule for the XC Marathon series. Below is a snapshot.
Homage to Ice: April 14th, 2018
Long Socks Classic: May 19th, 2018
Kingston Trophy: September 1st, 2018
Northumberland Humbler: September 29th, 2018
Check out their facebook and website for more details.
https://www.facebook.com/substanceprojects/
http://substanceprojects.com/xc-marathon
Cheers