Nuclear Fit Rookies
An exciting outdoor fitness race designed for young athletes aged 9–15, giving them the chance to take on a fun and challenging course built just for them. Combining functional fitness stations with short runs, the race introduces the next generation to fitness racing in an energetic, supportive and confidence-building environment.
AGE 9-11
- Approx. 1 hour
- Age 9-11
Designed as an introduction to fitness racing, this age category focuses on building confidence, coordination and love for exercise.
Lighter weights and shorter distances than the adult race ensure a fun and achievable challenge for younger racers.
They will undertake six 260m trail runs, and six workout stations, all designed to balance performance, safety and fun.
Please note: the child’s age on race day determines their category, not the age during ticket booking.
- Chip timing
- 1 free finishers wall photo
- Finishers medal
- Free spectators and free parking
AGE 12-15
- Approx. 1 hour
- Age 12-15
A step up in intensity, this category is designed for older racers ready for more of a challenge and strengthen the foundations for a healthy lifestyle.
With heavier weights and longer distances than the younger age group, it’s ideal for those looking to push themselves and build on their fitness.
They will undertake six 380m trail runs, and six workout stations, all designed to balance performance, safety and fun.
Please note: the child’s age on race day determines their category, not the age during ticket booking.
- Chip timing
- 1 free finishers wall photo
- Finishers medal
- Free spectators and free parking
Offers
18th July 2026
WHEEL TYRE FLIP
Distance age 9-11: 20m
Distance age 12-15: 30m
Height of tyre: 2ft
FARMER URN HUG
Distance: 80m
Weight age 9-11: 8kg
Weight age 12-15: 12kg
PLOUGH PULL
Distance: 125m
Weight: 4kg
MILK CHURN CARRY
Distance age 9-11: 70m
Distance age 12-15: 115m
Weight age 9-11: 6kg
Weight age 12-15: 12kg
DUCK AND THROW
Distance age 9-11: 50m
Distance age 12-15: 100m
Weight: 10kg
Throws age 9-11: 5
Throws age 12-15: 10
Squat and Lift
Reps age 9-11: 25
Reps age 12-15: 40
Functional fitness format
Participants take on unique functional fitness stations, such as tyre flips, plough pulls and milk churn carries. They are designed to test both endurance and strength.
Training available
For those that want a little more practice before the big day, training sessions are available throughout the year to get you race day ready.
Timing Chips
Every competitor will receive chip-timing information, with breakdowns for each run and workout station, giving detailed performance splits and clear insight into strengths, progress and pacing.
Team and league opportunities
With Individual, Doubles and Relay options available, you can take part either individually or as part of a team. Individuals also have the opportunity to compete for Nuclear Fit League glory!
A premium experience
Expect smooth organisation, first-class marshals, medals, photos, all part of the premium race-day experience courtesy of the award-winning team behind Nuclear Essex.
Festival vibes
Expect a lively central arena surrounded by music, crowds, sports massage stations, a variety of stalls, free on-site parking and free spectator access, all of which creates a buzzing energy and a festival-style vibe that celebrates fitness and fun.
TOP 10 FAQ's
Find us
How to find us
Nuclear Fit is located in Brentwood, Essex just 15 minutes from the A12, M25 and M11.
By Train and taxi, we’re just 15 minutes from Brentwood station (on the mainline from Liverpool St) or 15 minutes from Epping Underground station.