ATW Welwyn Half Marathon & 10k
From ATW
- Date Sun 28th September 2025
- Time 09:30
- Location Gosling Sports Park, Stanborough Road, Welwyn Garden City, Hertfordshire, AL8 6XE
- Price £30.74 - £39.22
- Races 2 races
- Distances 10km, Half Marathon
Event summary
Get ready for an exhilarating day of running at the ATW Welwyn Half Marathon & 10k on Sunday, September 28th, 2025, in the picturesque Welwyn Garden City, Hertfordshire! This exciting event, organized by ATW, promises to be a fantastic experience for runners of all ages and abilities. The Half Marathon takes you on a scenic journey through the leafy outskirts of Welwyn, featuring a delightful traffic-free section along the historic Cole-Green Way. Meanwhile, the inaugural 10k will kick off alongside the Half Marathon, allowing participants to enjoy the same beautiful route for the first 5km before heading back.
Starting at 9:30 AM at the impressive 400m athletics track at Gosling Sports Park, this event is designed for fun and camaraderie. Runners can look forward to a well-marked course, supportive marshals, and custom-designed medals. The day will also feature a FREE 400m Children’s Fun Run, making it a perfect family-friendly outing. With professional chip timing, mouth-watering finish line snacks, and a vibrant atmosphere, the ATW Welwyn Half Marathon & 10k is a must-attend event for those who love to run. Join us for a
Starting at 9:30 AM at the impressive 400m athletics track at Gosling Sports Park, this event is designed for fun and camaraderie. Runners can look forward to a well-marked course, supportive marshals, and custom-designed medals. The day will also feature a FREE 400m Children’s Fun Run, making it a perfect family-friendly outing. With professional chip timing, mouth-watering finish line snacks, and a vibrant atmosphere, the ATW Welwyn Half Marathon & 10k is a must-attend event for those who love to run. Join us for a
ATW Welwyn Half Marathon & 10k
Sun 28th September 2025
Organiser's Description
The popular Welwyn Half Marathon and 10k starts and finishes on the impressive 400m athletics track at Gosling Sports Park.
You will be directed out of the stadium, through the leafy outskirts of Welwyn where the Half Marathon heads towards the Cole-Green Way, a disused railway line which is now a perfect traffic-free track to run along. After this traffic free section the Half will complete a short loop to bring you back onto the Cole Green Way again. You then reverse your route to finish on the track back at Gosling Sports Park.
2025 will see the inaugural 10k taking place, starting alongside the Half Marathon. The two races will follow the same route for the first 5km before heading back.
Taking place in Autumn, it's a perfect time for a half marathon.
This race will be operating a 3 hour cut off time, after which there will not be marshals and course signage available.
The event is held under a full UK Athletics race license and chip-timed by our professional timing partner, Event Chip Timing.
This event is more than just a run. You’ll be warmed up with personal trainers, welcomed home by a professional commentator and your cheer-squad will be kept fed and watered by quality caterers while you run.
Running with friends or family? Purchase a Group Saver Ticket (minimum 2 people, max 10)
The event will start at 09:30am. A FREE 400m Children’s Fun Run will also take place on the running track 15 mins before the half-marathon start (no need to book, just turn up to registration). Parents are welcome to run with their kids and use it as a warm-up for the main event!
Reasons to enter:
Fun for the family
Well marked, scenic course
Supportive marshals
Custom designed medal
FREE event photos
Finish line snacks & goodies
Positive reviews from previous participants (see below)
Read reviews on Racecheck
Event Organiser
ATW was established in 2011 by James Shipley. We have now become a national events company in the UK, specialising in Running, Triathlon, Duathlon, Aquathon, Cycling, Swimming and all permutation of swim-bike run events. With over 40,000 entries a year ATW has become a firm favourite amongst people who are determined to Dream, Believe and Achieve.
You will be directed out of the stadium, through the leafy outskirts of Welwyn where the Half Marathon heads towards the Cole-Green Way, a disused railway line which is now a perfect traffic-free track to run along. After this traffic free section the Half will complete a short loop to bring you back onto the Cole Green Way again. You then reverse your route to finish on the track back at Gosling Sports Park.
2025 will see the inaugural 10k taking place, starting alongside the Half Marathon. The two races will follow the same route for the first 5km before heading back.
Taking place in Autumn, it's a perfect time for a half marathon.
This race will be operating a 3 hour cut off time, after which there will not be marshals and course signage available.
The event is held under a full UK Athletics race license and chip-timed by our professional timing partner, Event Chip Timing.
This event is more than just a run. You’ll be warmed up with personal trainers, welcomed home by a professional commentator and your cheer-squad will be kept fed and watered by quality caterers while you run.
Running with friends or family? Purchase a Group Saver Ticket (minimum 2 people, max 10)
The event will start at 09:30am. A FREE 400m Children’s Fun Run will also take place on the running track 15 mins before the half-marathon start (no need to book, just turn up to registration). Parents are welcome to run with their kids and use it as a warm-up for the main event!
Reasons to enter:
Fun for the family
Well marked, scenic course
Supportive marshals
Custom designed medal
FREE event photos
Finish line snacks & goodies
Positive reviews from previous participants (see below)
Read reviews on Racecheck
Event Organiser
ATW was established in 2011 by James Shipley. We have now become a national events company in the UK, specialising in Running, Triathlon, Duathlon, Aquathon, Cycling, Swimming and all permutation of swim-bike run events. With over 40,000 entries a year ATW has become a firm favourite amongst people who are determined to Dream, Believe and Achieve.
Races
-
10k
Sun 28th September 2025 (09:30)
£30.74
UK Athletics (UKA) save £2.00
Booking for more than 1? -
Half Marathon
Sun 28th September 2025 (09:30)
£39.22
UK Athletics (UKA) save £2.00
Booking for more than 1?
ATW Welwyn Half Marathon & 10k
