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Marathons Found In Watford
View all ↓Marathons in Watford 2026 - 2027
The most comprehensive list of Marathons in and near Watford in 2026 - 2027. Find your perfect race!
The Grand Union Canal towpath runs straight through Watford and keeps going for miles in either direction. Head north out of the city and you get flat, uninterrupted running with nothing to manage except your pace. Cassiobury Park and the River Gade path give you more varied ground when you need it. Between the two, you have most of what marathon training requires. Prefer to build up first? Half marathons in Watford are a good starting point.
Browse the listings below and pick one that works for you. Watford isn't a destination marathon city, but the flat Colne Valley setting makes it a decent option if you're chasing a time. For a shorter effort, try 10k runs in Watford or 5k runs in Watford first.
Looking for more options?
Explore marathons across the East of England with Basildon marathons, marathons in Bedford or marathons near Cambridge.
Race Calendar: Marathons Found In Watford
Great British Bake Run 2026
The Last Hop, Unit 2, Thames Edge, 15-18 Clarence St, Staines TW18 4SU
Sun 09 Aug 26
£18.00 - £35.00
4.5
PHOENIX - Prosecco Run
Dorking, Surrey
Sun 09 Aug 26
£22.00 - £39.95
5.0
Midweek Chasing Numbers Aug 2026
The Last Hop, Unit 2, Thames Edge Court, Clarence Street, Staines, TW18 4SU
Fri 14 Aug 26
£18.00 - £27.00
5.0
I'm Not Throwing Away My Shot Run
The Last Hop, Unit 2, Thames Edge, 15-18 Clarence St, Staines TW18 4SU
Sat 15 Aug 26
£18.00 - £35.00
Midweek Medal Madness Run August 2026
The Last Hop, Unit 2, Thames Edge Court, Clarence Street, Staines, TW18 4SU
Fri 21 Aug 26
£18.00 - £27.00
Surrey - Duck n Run - Rubber Ducky - Day 1
Walton-on-Thames, Surrey
Sat 22 Aug 26
£22.00 - £39.95
Surrey - Duck n Run - Rubber Ducky - Day 2
Walton-on-Thames, Surrey
Sun 23 Aug 26
£22.00 - £39.95
Surrey - Duck n Run - Rubber Ducky - Day 3
Walton-on-Thames, Surrey
Mon 24 Aug 26
£22.00 - £39.95
Surrey - Duck n Run - Rubber Ducky - Day 4
Walton-on-Thames, Surrey
Tue 25 Aug 26
£22.00 - £39.95
Surrey - Duck n Run - Rubber Ducky - Day 5
Walton-on-Thames, Surrey
Wed 26 Aug 26
£22.00 - £39.95
Surrey - Duck n Run - Rubber Ducky - Day 6
Walton-on-Thames, Surrey
Thu 27 Aug 26
£22.00 - £39.95
Surrey - Duck n Run - Rubber Ducky - Day 7
Walton-on-Thames, Surrey
Fri 28 Aug 26
£22.00 - £39.95
Surrey - Duck n Run - Rubber Ducky - Day 8
Walton-on-Thames, Surrey
Sat 29 Aug 26
£22.00 - £39.95
Surrey - Duck n Run - Rubber Ducky - Day 9
Walton-on-Thames, Surrey
Sun 30 Aug 26
£22.00 - £39.95
Surrey - Duck n Run - Rubber Ducky - Day 10
Walton-on-Thames, Surrey
Mon 31 Aug 26
£22.00 - £39.95
Mystery Marathon & Half Marathon
Milton Keynes, Buckinghamshire
Thu 03 Sep 26
£29.99 - £34.99
Wind in the Pillows Marathon
Milton Keynes, Buckinghamshire
Thu 03 Sep 26
£39.99
PHOENIX - Summer Marathon & Half Marathon
Walton-on-Thames, Surrey
Sat 05 Sep 26
£33.50
5.0
The Shere 42k, 21k & 10k Multi Terrain Event
Shere Recreation Ground, Upper Street, Shere, Surrey, GU5 9JF
Sat 12 Sep 26
£27.50 - £70.00
4.5
Flying Scotsman Marathons & Half Marathons
Milton Keynes, Buckinghamshire
Sat 12 Sep 26 - Sun 13 Sep 26
£34.99 - £41.99
The Rubber Ducky Waddle
The Last Hop, Unit 2, Thames Edge, 15-18 Clarence St, Staines TW18 4SU
Sun 13 Sep 26
£18.00 - £35.00
Richmond Marathon @ Richmond RUN-FEST 2026
Richmond, Greater London
Sun 13 Sep 26
£45.00
4.3
Midweek Chasing Numbers Sept 2026
The Last Hop, Unit 2, Thames Edge Court, Clarence Street, Staines, TW18 4SU
Fri 18 Sep 26
£18.00 - £27.00
5.0
PHOENIX - Hedgie Hog Jog
Walton-on-Thames, Surrey
Sun 20 Sep 26
£22.00 - £40.00
Phoenix Crystal Palace - Retro Run
London
Sun 20 Sep 26
£22.00 - £39.95
PHOENIX - Cakeathon
Walton-on-Thames, Surrey
Sat 26 Sep 26
£22.00 - £40.00
Run Dorney Lake Marathon, Half Marathon, 10k & 5k - September
Dorney Lake, Court Lane, off Lake End Road, Windsor SL4 6FJ
Sat 26 Sep 26
£29.68 - £42.40
4.4
PHOENIX - Chocothon
Walton-on-Thames, Surrey
Sun 27 Sep 26
£22.00 - £40.00
Midweek Chasing Numbers Oct 2026
The Last Hop, Unit 2, Thames Edge Court, Clarence Street, Staines, TW18 4SU
Fri 02 Oct 26
£18.00 - £27.00
The Autumn Lucky Dip Run
The Last Hop, Unit 2, Thames Edge Court, Clarence Street, Staines, TW18 4SU
Sun 04 Oct 26
£18.00 - £35.00
Thames Meander Autumn
Richmond, Greater London
Sun 04 Oct 26
£37.36 - £58.59
4.1
PHOENIX BEDFORDSHIRE Freaky Phoenix Friday
Biggleswade, Bedfordshire
Fri 16 Oct 26
£22.00
PHOENIX BEDFORDSHIRE Skull Runner
Biggleswade, Bedfordshire
Sat 17 Oct 26
£22.00 - £39.95
Windsor Dorney Lakeside Marathon
Dorney Lake, Off Court Lane, Windsor, Berks, SL4 6QP
Sun 18 Oct 26
£41.51
BATTERSEA PARK RUNNING FESTIVAL
London
Sat 24 Oct 26
£12.00 - £47.00
4.5
Scare Bear Run 2026
The Last Hop, Unit 2, Thames Edge Court, Clarence Street, Staines, TW18 4SU
Sat 24 Oct 26
£18.00 - £35.00
Running Tribe Races
Course 1,2,3 are at - Chalfont Park Sports Club Chalfont Park, SL9 0QA. Course 4,5,6,12 are at - Chalfont St. Peter Community Centre , SL9 9QX. Course - 7,8 are at - Amersham Cricket Club, Missenden Rd, Old Amersham, Bucks, HP7 0RN Course - 9 is at - Sarratt Village Hall, The Green, Sarratt,,Nr Rickmansworth, Herts WD3 6AS Course - 10,11 are at - Chesham & District Community Association, White Hill Centre, White Hill, Chesham, Bucks, HP5 1AG.
Sun 25 Oct 26
£38.69
The Horrorwood Halloween Run
The Last Hop, Unit 2, Thames Edge Court, Clarence Street, Staines, TW18 4SU
Sat 31 Oct 26
£18.00 - £35.00
Wendover Woods Marathon, Half Marathon & 10k
Wendover Woods, Upper Icknield Way, Aston Clinton, HP22 5NQ
Sun 01 Nov 26
£7.68 - £50.00
4.6
We Will Remember Poppy Run
The Last Hop, Unit 2, Thames Edge Court, Clarence Street, Staines, TW18 4SU
Fri 06 Nov 26
£18.00 - £35.00
Showing 1-40 of 102 results