Adult & Masters Running
Running coaching for adults and masters in Brentwood, Essex
Brentwood Beagles is an England Athletics affiliated club in Brentwood, Essex. Our senior and masters runners range from people training for their first 10K to Stefan Otway, who ran 2:25:52 at the 2026 London Marathon. Every adult who joins as a first claim member can have free blood lactate testing and a free, data-driven training plan for their main race, written with one of our qualified endurance coaches.
At a glance
- Brentwood Beagles Athletics Club has been affiliated to England Athletics since 2022.
- We coach senior and masters runners of every standard, from beginners to a 2:25 marathoner.
- First claim members get free blood lactate testing and a personalised, data-driven plan for their main race.
- Club nights are on Tuesday and Thursday from 6:30pm to 9pm.
- We train at the Brentwood School athletics track, Middleton Hall Lane, Brentwood, Essex CM15 8EE.
- To get started, book a free taster session on a Tuesday or Thursday evening.
What first claim adult members get
- Free blood lactate testing. We measure how your body responds as the pace rises, find your lactate threshold and set your training zones from your own data. How blood lactate testing works.
- A free, personalised plan for your main race. Your coach builds it around your test results, your training history and the time you have each week, whether you are aiming at a first half marathon or a marathon PB.
- Qualified endurance coaches. Our coaching team includes England Athletics Event Group Coaches for Endurance, Coaches in Running Fitness and certified IRONMAN coaches, with strength and conditioning support.
- Club nights on Tuesday and Thursday evenings from 6:30pm to 9pm on the six-lane, 400m track at Brentwood School, Middleton Hall Lane, CM15 8EE.
- A team to race with. More than 25 senior Beagles ran the 2026 Brentwood Half Marathon, and our adults race everything from parkrun and the Essex Cross Country League to the World Marathon Majors.
Results from our seniors and masters
Almost every senior and masters athlete who has followed a plan with one of our coaches has run a personal best, and many have taken minutes off their previous times. These are some recent examples from our race reports.
| Athlete | Distance | Result |
|---|---|---|
| Stefan Otway | Marathon | 2:25:52 at the 2026 London Marathon, 88th overall, then 2:26:11 in Berlin |
| Stefan Otway | Half marathon | Won the 2026 London Landmarks Half Marathon in a PB of 68:31 |
| Scott Brooks | Marathon | From 2:53 in Valencia (December 2023) to a PB of 2:46:00 in New York (November 2024) |
| Scott Brooks | Half marathon | From 1:24:23 (October 2023) to 1:16:26 (January 2026), across six PBs |
| Scott Brooks | 10K | From 36:52 (February 2024) to 34:27 (January 2026) |
| Lorraine Massarella | Half marathon | 1:33:16 at the 2024 Royal Parks Half, a PB by eight minutes |
| Lorraine Massarella | Marathon | PB of 3:31:41 at the 2025 London Marathon and a good for age place, then 3:30:54 in 2026 |
| Yvo Heidemans | Marathon | From 3:34:51 in Valencia (December 2024) to 3:14:24 in Rotterdam (April 2026) |
| James Connor | 10K | Essex 10K Road champion in 31:29 (June 2026) and qualified for the England Masters V40 team |
| Stuart Crowther | 10K | A course PB by four minutes at Hatfield Broad Oak (41:18, 2023), then 40:44 at the 2024 London Winter Run |
| Aiden Kerr | Marathon | PB of 3:30:58 at the 2025 Manchester Marathon |
| Rebecca Hurrell | Marathon | 3:54:42 at the 2024 London Marathon, inside her four-hour target |
Beginners are welcome
Many of our adult members started with a first 10K or half marathon. Elaine Forrest completed her first marathon in London in 2023, and Rebecca Hurrell set out to break four hours in London in 2024 and finished in 3:54:42. At the 2026 Brentwood Half Marathon, two Beagles ran as official pacers for the 1 hour 50 and two-hour groups. Your plan starts from where you are now.
How blood lactate testing helps your training
A blood lactate test shows how hard you can run before lactate starts to build faster than your body clears it. Your coach uses that threshold to set heart rate and pace zones, so easy runs stay easy and quality sessions hit the right intensity. Repeat tests show whether your fitness is moving in the right direction before race day. Speak to a coach at your next club session to book a test.
Moving from another running club?
Free blood lactate testing and personalised race plans are for first claim members, so to use them you would make Brentwood Beagles your first claim club. You can still race open events and parkrun as you do now, and you would represent the Beagles in league and championship races. Read more about first and second claim membership.
Questions from adult runners
Yes, for first claim members. Blood lactate testing is included at no extra cost for adults who make Brentwood Beagles their first claim club. Speak to a coach at a club session to book.
Yes, if you are a first claim member. Your coach builds a free, personalised plan for your main race from your lactate test, training history and weekly availability.
Yes. Our adult members range from runners preparing for a first 10K to a 2:25 marathoner, and every plan starts from your current fitness.
Club nights are on Tuesday and Thursday evenings from 6:30pm to 9pm at the Brentwood School track, Middleton Hall Lane, Brentwood CM15 8EE.
No. Free blood lactate testing and personalised race plans are for first claim members only. To use them, join Brentwood Beagles as your first claim club.
In UK athletics, masters competition starts at age 35. Our masters athletes race on the road, on the track and in cross country.
Let us know you are interested through our contact page and we will arrange a taster session for you on a Tuesday or Thursday evening at the Brentwood School track.
Join us
Let us know you are interested and we will arrange a taster session for you on a Tuesday or Thursday evening. A coach will also talk you through blood lactate testing and planning for your next race.