Gym weight loss challenge: how a Gym Fight works 🏋️
🥊 The essentials at a glance
- One leaderboard for everyone who trains at the same gym.
- Only percent counts: the weight itself is never scored.
- At most 3% per week goes into the score.
- Monthly challenge with a monthly champion.
- Invite by link: training partners join in seconds.
🏆 The monthly champion
Each month is its own round. Whoever achieves the most in percent becomes the gym’s monthly champion. Then it starts over, and everyone has the same chance at the crown 👑 again.
⚖️ Why only percent and at most 3% per week?
Percent compares everyone with their own starting weight, so lighter and heavier people have equal chances. The 3% weekly cap stops extreme dieting or crash diets from being rewarded. Slow, steady change is generally considered more sustainable – and that is what should win. How percent is calculated: how to calculate weight loss percentage.
🔗 How to get going
You set up the gym yourselves, and the invitation goes out by link to your training partners. Joining the gym leaderboard is voluntary: if you’d rather not, simply carry on training as before.
🏢 A note for gym owners
Do you run a gym and wonder how the Gym Fight could fit your members? Write to us at referee@fatfight.de.
🤔 When a Gym Fight is not a fit
A Gym Fight lives on fun, not pressure. If comparisons at the gym make you uncomfortable, skip it – or play with friends in a private group. With existing health conditions, pregnancy, eating disorders or any doubt, please ask your doctor first. Weight fluctuates daily; what matters is the trend over weeks.
🚀 Start in one minute
- 1. Open fatfight.de, enter your weight and name.
- 2. Choose “Against my friends”.
- 3. Send the invite link to your group – done. No app store needed.
❓ Frequently asked questions
What is a Local Gym Fight?
A leaderboard for everyone who trains at the same gym. Only the change in percent is scored, never the weight, with a monthly challenge and a monthly champion.
Does everyone at the gym see my weight?
No. Only the change in percent is scored; the weight itself never counts. So you can take part without showing your weight.
Why does only 3% per week count?
The cap stops crash diets from winning. Slow, steady change is considered more sustainable, and that is what the ranking should reward.
How do I invite training partners?
By link: you set up the gym yourselves and send the invite link to your training partners. Gym owners can reach us at referee@fatfight.de.
📚 Keep reading
- How to calculate weight loss percentage
- Losing weight with friends
- 30-day weight loss challenge
- All guides
FatFight is not nutritional or medical advice.