ATHX
Nuclear Fit
Difficulty
Intermediate
Intermediate
Difficulty Score
3/5
—
Typical Distance
Varies
Varies
Typical Duration
Varies
Varies
Avg. Duration (mins)
~150 min
—
Race Format
Mixed
—
Team Size
2 per team
—
Venue Type
Mostly Indoor
Mostly Outdoor
Average Entry Price
~£15
TBA
Total Events
18 ✓
3
Upcoming Events
10 ✓
3
Countries
10 ✓
0
Cities
16 ✓
1
Choose ATHX if...
- You want more event options (18 events)
- You want global availability (10 countries)
- View ATHX events →
Choose Nuclear Fit if...
Frequently Asked Questions
Is ATHX harder than Nuclear Fit?
ATHX is rated "solid" difficulty while Nuclear Fit is rated "solid". They are similar in difficulty.
Which is better for beginners, ATHX or Nuclear Fit?
Both ATHX and Nuclear Fit require some fitness experience. Check individual event pages for specific requirements.
How many events does ATHX have compared to Nuclear Fit?
ATHX has 18 events across 10 countries. Nuclear Fit has 3 events across 0 countries.