sun14jan - 21jan 148:00 amjan 21MONTANE® Spine® Race268 miles8:00 am - 6:00 pm (21) Edale Village Hall, Edale, Hope Valley S33 7ZARegion:Midlands

sat3feb - 4feb 39:00 amfeb 4The Pilgrim Challenge - Sealskinz Ultra Trail Series66 miles9:00 am - 6:00 pm (4) Sandy Farm Business Park, Sandy Lane, Farnham, GU101PXRegion:South Central

fri9feb12:00 pmThe Arc of Attrition100 miles12:00 pm Blue Bar, Porthtowan, Cornwall TR4 8AWRegion:South West

fri23mar - 25mar 2311:30 ammar 25Jurassic Coast Challenge78 miles11:30 am - 8:00 pm (25) ​Weymouth & Portland Sailing Academy, Osprey Quay, Portland, Dorset, DT5 1SARegion:South West

sat31mar12:00 amTHE B2R MIDNIGHT ULTRA 80 miles40 miles12:00 am Bynea Cycle Club, Heol y Bwlch, Bynea, LlanelliRegion:Wales

sat5may10:00 amTHAMES PATH 100100 miles10:00 am Richmond Old Town Hall, Whittaker Ave, Richmond TW9 1TPRegion:South East

sat12may8:00 amPembrokeshire 100 mile ultra100 miles8:00 am Dale, Haverfordwest, Pembrokeshire SA73 3AURegion:Wales

sat19may7:00 amWestcountry Ultra 100 Miler50 miles7:00 am Canal Road, Taunton TA1 1PNRegion:South West

sat9jun6:00 amSOUTH DOWNS WAY 100100 miles6:00 am Chilcomb Sports Ground, WinchesterRegion:South Central

sat4aug6:00 amNORTH DOWNS WAY 100100 miles6:00 am St Polycarps School, Waverley Lane, Farnham GU9 8BQRegion:South Central

sat11aug12:05 amThe Rat 64 Miles12:05 am Porthpean Outdoor Centre, Castle Gotha Farm, Porthpean, Saint Austell PL26 6AZRegion:South West

sat18aug6:00 amUltra Great Britain214 miles6:00 am Southern Upland Way, North of Portpatrick Harbour, Portpatrick, Stranraer, DG9 8AN.Region:Scotland

sat13oct10:00 amAUTUMN 100100 miles10:00 am Goring Village Hall, High Street, Goring-on-Thames, Oxfordshire, RG8 9AG.Region:South Central