The Exercise Community for the Workplace
Challenge 2026
The Exercise Community for the Workplace
Challenge 2026
Mar 7 – Apr 3, 2026 · Castlethorn Construction
Any activity · Any fitness level · Any time
A 4-week team exercise challenge for everyone at Castlethorn. We handle the scoring — you just move.
Scan to download & join
Challenge Code
5221
Enter this code in the NestEgg app
to join the Castlethorn Challenge
Join a team of 5 colleagues — your Nest. Mixed fitness levels work best. That's the entire point.
Download the NestEgg Health app and enter Challenge Code 5221. Takes 2 minutes.
Connect any wearable — Apple Watch, Garmin, Fitbit, WHOOP, Polar. No wearable? Talk to HR.
Walk, run, lift, swim, cycle, do yoga. Any activity counts — any time, any place, on your own or with others.
NestEgg converts workouts into Exercise Points using heart rate data. Duration × intensity = points. We do the maths.
Everyone has a personal weekly target. Hit it = 100%. A beginner and a marathon runner compete on equal terms.
Your % score adds to your Nest's average. The Nest with the highest score over 4 weeks wins. Consistency beats heroics.
Pick your level when you join. Hit your weekly target = 100%. Beat it consistently and you level up. A Level 1 beginner and a Level 15 elite athlete can both score 100% — and contribute equally to their Nest.
| Level | Class | Typical Activity | Weekly Target |
|---|---|---|---|
| Level 1 | Beginner | 0–2 hrs/week | |
| Level 2 | Beginner | 0–2 hrs/week | |
| Level 3 | Beginner | 0–2 hrs/week | |
| Level 4 | Intermediate | 2–4 hrs/week | |
| Level 5 | Intermediate | 2–4 hrs/week | |
| Level 6 | Intermediate | 2–4 hrs/week | |
| Level 7 | Advanced | 4–7 hrs/week | |
| Level 8 | Advanced | 4–7 hrs/week | |
| Level 9 | Advanced | 4–7 hrs/week | |
| Level 10 | Professional | 7–14 hrs/week | |
| Level 11 | Professional | 7–14 hrs/week | |
| Level 12 | Professional | 7–14 hrs/week | |
| Level 13 | Elite | 14–28 hrs/week | |
| Level 14 | Elite | 14–28 hrs/week | |
| Level 15 | Elite | 14–28 hrs/week |
Weekly EP earned ÷ your target × 100. Hit target = 100%. Beat it = over 100%. Resets every Monday.
The average of all 5 Egg Scores. One person hitting 200% doesn't compensate for three zeros.
Cumulative Nest Scores over 4 weeks. Every week counts from Week 1. There is no warm-up round.
Consistently exceed your target and you're promoted to the next level. It never gets permanently easy.
This isn't a slogan — it's how the whole system is designed. Beginners don't feel exposed. Busy weeks don't knock you out. Missing one day doesn't mean failing.
Join the Challenge →