2020sat18aprAll DayWellington Boot100 km(All Day: saturday) Wellington Rugby Football Club, Corams La, Wellington TA21 8LLRegion:South West

2020fri01may10:00 am8:00 pmDevil's Challenge97 miles10:00 am - 8:00 pm Chilcomb Sports Ground, WinchesterRegion:South Central

2020sat02may9:30 amTHAMES PATH 100100 miles9:30 am Richmond Old Town Hall, Whittaker Ave, Richmond TW9 1TPRegion:South East

2020sat09may8:30 amRidgeway 4040 miles8:30 am Avebury Sports & Social Club, Beckhampton Road, Avebury, Wiltshire SN8 1RDRegion:South Central

2020sat09may9:30 amOx 5050 miles9:30 am RUSHMORE ESTATE, Tollard Royal Salisbury SP5 5QBRegion:South Central

2020sat09may8:00 pmT60 CHALLENGE60 miles8:00 pm The Bowyers Arms, Radley, Oxford OX14 3AERegion:South Central

2020sat16may7:00 amWestcountry Ultra 100 Miler100 miles7:00 am Canal Road, Taunton TA1 1PNRegion:South West

2020sat16may7:30 amWestcountry Ultra Flat 5050 miles7:30 am Canal Road, Taunton TA1 1PNRegion:South West

2020sat16may8:00 amNORTH DOWNS WAY 5050 miles8:00 am Farnham Leisure Centre, Dogflud Way, Farnham GU9 7UDRegion:South Central

2020sat16may10:00 amMonarchs Way Ultra615 miles10:00 am Powick Bridge, Worcester WR2 4BURegion:South West

2020sat16may10:30 amWestcountry Ultra Hilly 5050 miles10:30 am Quay West Car Park, Quay W, Minehead TA24 5UPRegion:South West

2020sat23may7:00 amLondon 2 Brighton Full Challenge100 km7:00 am Richmond, LondonRegion:London

2020sat23may7:00 amLondon 2 Brighton Challenge - 1st HALF CHALLENGE56 km7:00 am Richmond, LondonRegion:London

2020sun24may6:00 amLondon 2 Brighton Challenge - 2nd HALF CHALLENGE44 km6:00 am Tulleys Farm, Unit 1 Turners Hill Rd, Crawley RH10 4PERegion:London

2020sat06junAll DayClassic Quarter44 miles(All Day: saturday) Lizard Point, Cornwall TR12 7NTRegion:South West

2020sat06jun9:30 amDartmoor Discovery32 miles9:30 am Princetown Community Centre, 1 Moor Cres, Princetown, Yelverton PL20 6RFRegion:South West

2020sat13jun6:00 amSOUTH DOWNS WAY 100100 miles6:00 am Eastbourne Sports Club Athletics Track, Cross Levels Way, Eastbourne, East Sussex BN21 2UFRegion:South Central

2020sat20junAll DayRace to the King53.6 miles(All Day: saturday) ArundelRegion:South East

2020sat04julAll DayRace to the Stones100 km(All Day: saturday) LewknorRegion:South Central

2020sat04jul7:00 amHam & Lyme 100k100 km7:00 am Lyme Regis, Dorset Region:South West

2020sat04jul9:30 amHam & Lyme 50k50 km9:30 am Ham Hill Country Park, Ham Hill Rd, Stoke-sub-Hamdon TA14 6RWRegion:South West

2020sat11jul9:00 amHumanity Direct Chiltern Challenge31 miles9:00 am Princes Risborough, School, Merton Road, Princes Risborough HP27 0DRRegion:South Central

2020sat18julAll DayRace to the Tower52.4 miles(All Day: saturday) WhiteshillRegion:South Central

2020sat08aug12:05 amThe Rat 64 Miles12:05 am Porthpean Outdoor Centre, Castle Gotha Farm, Porthpean, Saint Austell PL26 6AZRegion:South West

2020sat08aug6:00 amNORTH DOWNS WAY 100100 miles6:00 am Farnham Leisure Centre, Dogflud Way, Farnham GU9 7UDRegion:South Central

2020sat08aug7:00 amThe Rat 32 Miles32 miles7:00 am Porthpean Outdoor Centre, Castle Gotha Farm, Porthpean, Saint Austell PL26 6AZRegion:South West

2020sat08aug8:00 amMendip Marauder 5050 miles8:00 am Frome, SomersetRegion:South West

2020sat08aug10:00 amMendip Marauder 3030 miles10:00 am Wells, SomersetRegion:South West

2020sat22aug8:00 amSUMMER GREEN MAN ULTRA 4545 miles8:00 am Ashton Park School, Blackmoors Ln, Bower Ashton, Bristol BS3 2JLRegion:South West

2020sat22aug11:00 amSUMMER GREEN MAN ULTRA 3030 miles11:00 am The White Horse Inn, Bristol Road, Hambrook, Bristol BS16 1RYRegion:South West

2020tue25aug10:30 amT184 CHALLENGE184 miles10:30 am Thames Barrier Cafe (South Side), London SE18 5NJ Region:London

2020fri28aug10:30 amT100 CHALLENGE100 miles10:30 am Thames Barrier Cafe (South Side), London SE18 5NJ Region:London

2020sat05sep8:30 amThe Conquest of Avalon 50 Miles50 miles8:30 am Ham Hill Country Park, Ham Hill Rd, Stoke-sub-Hamdon TA14 6RWRegion:South Central

2020sat05sep10:30 amThe Conquest of Avalon 30 Miles30 miles10:30 am Castle CaryRegion:South Central

2020sat12sep9:00 amCHILTERN WONDERLAND 5050 miles9:00 am Goring Village Hall, High Street, Goring-on-Thames, Oxfordshire, RG8 9AG.Region:South Central

2020sat26sep9:00 amHumanity Direct Tring Ultra31 miles9:00 am Tring Cricket Club, Beechwood, London Road, Tring, Hertfordshire HP23 6HARegion:South Central

2020sat10oct8:30 amATLANTIC COAST CHALLENGE78 miles8:30 am Fistal Beach, CornwallRegion:South West

2020sat10oct9:00 amAUTUMN 100100 miles9:00 am Goring Village Hall, High Street, Goring-on-Thames, Oxfordshire, RG8 9AG.Region:South Central

2020sat14nov9:30 amWENDOVER WOODS 5050 miles9:30 am Trig Point Field, Aston Hill, Halton, Aylesbury HP22 5NQRegion:South Central