Half Marathons Found In & Near Hertfordshire
View all ↓Half Marathons In & Near Hertfordshire 2026 - 2027
The most comprehensive list of Half Marathons in and near Hertfordshire in 2026 - 2027. Find your perfect race!
Top Tip: Viewing this page in the default “Featured view” will show you all the Best Half Marathons in and around Hertfordshire. If you’re ready to set yourself a challenge right now then switching to “Bookable view” will show you those that can be booked instantly and securely through Find A Race. Guarantee your place today and get training :-)
Race Calendar: Half Marathons In & Near Hertfordshire
Wendover Woods Half Marathon & 10k
Wendover Woods, Upper Icknield Way, Aston Clinton, HP22 5NQATW St Albans Half Marathon #icelollyrun
Verulamium Park, St Albans AL1 2DLMK24 Midsummer RunFest
Milton Keynes, BuckinghamshireDunstable Downs Half Marathon
Dunstable, BedfordshireFINSBURY PARK 5K, 10K & HALF MARATHON
LondonCock-a-doodle Dawdle - 5k,10k, Half Marathon, Full Marathon or Ultra Marathon
Hyde Hall Farm, Buntingford, SG9 0RULee Valley Velo Park - June
London, Greater LondonRichmond Park Half Marathon
LondonWorld Cup winners 60th anniversary Marathon
Milton Keynes, BuckinghamshireBattersea Park 10k & Half Marathon
LondonChiltern Ridge Half Marathon
Aylesbury, BuckinghamshireWorld Cup winners 60th anniversary Marathon
Milton Keynes, BuckinghamshireThe Railway Run Marathon, Half Marathon & 50km
Milton Keynes, BuckinghamshireBattersea Park 10k & Half Marathon
LondonRichmond Park July 5k,10k and Half Marathon
London, Greater LondonFormula One Marathons, Half Marathon & 50km
Milton Keynes, BuckinghamshireWind in the Pillows Marathons & Half marathon
Milton Keynes, BuckinghamshireBattersea Park 10k & Half Marathon
LondonLee Valley Velo Park - August
London, Greater LondonATW Bedford Running Festival
Russell Park, The Embankment, Bedford MK40 3RHRichmond Park September 5k, 10k and Half Marathon
London, Greater LondonFlying Scotsman Marathons & Half Marathons
Milton Keynes, BuckinghamshireBattersea Park 10k & Half Marathon
LondonEaling Half Marathon 2026
LondonATW Welwyn Half Marathon & 10k
Gosling Sports Park, Stanborough Road, Welwyn Garden City, Hertfordshire, AL8 6XELee Valley Velo Park - October
London, Greater LondonTop Gun 40th Anniversary Marathons & Half Marathons
Milton Keynes, BuckinghamshireBATTERSEA PARK RUNNING FESTIVAL
LondonRichmond Half Marathon Autumn
Old Deer Park - Richmond Upon Thames TW9 2SFATW Bedford 10k & Half Marathon
Russell Park, Bedford, Bedfordshire, MK40 3RHHertfordshire Half Marathon & 10k
Knebworth, HertfordshireEnigma Fireworks Marathons & Half Marathons
Milton Keynes, BuckinghamshireBattersea Park Half Marathon
LondonFINSBURY PARK 5K, 10K & HALF MARATHON
LondonGremlins Christmas Half & Marathons
Milton Keynes, BuckinghamshireBattersea Park Half Marathon
LondonLee Valley Velo Park - December
London, Greater LondonDie Hard Christmas Jumpers Marathon & Half Marathon
Milton Keynes, BuckinghamshireWinter Enigma Marathon & Half Marathon
Milton KeynesRelated Pages on Find A Race
If you still haven’t found what you’re looking for here are a few suggestions: broaden your search and take a look at the South East or South West of England if you’re willing and able to travel a bit further. If you’re in the Hertfordshire area but fancy something a bit shorter then check out our Hertfordshire 10k Runs page. If you’re happy to travel or you want to build a race into a trip away then check out our UK-wide Half Marathons calendar and you can refine and filter your search from there.