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Determined December Transformer- 30 Give...

Lose 10% in 6 months!

Determined December Transformer- 30 Giveaways

Dec 11 - Jun 10/Starts today







Dec 11



Stay determined through the holiday season with the help of this 6-month game to lose 10%. Plus, there will be 30 giveaways of an awesome fitness journal to help you plan and stay on track!



Game Begins

Dec 11

Last Day to Join

Dec 24


11th and 12th of every month


Bet $25

per month

Lose 10%

in 6 months


Split the pot

10% is easier when you break it up, so each round has its own goal - and its own pot to split.
Check out the FAQ to learn more!

How do you verify the weight loss?

For all official weigh-ins, you'll be prompted to submit your official starting weight. Our standard weigh-in process involves you submitting 2 photos: one of you standing on a scale in lightweight clothing (no shoes, hats, belts, watches, coats, or outerwear), and another of the scale’s readout with your weigh-in word written on a piece of paper.

What you'll need

  • A scale (preferably digital)
  • A digital camera or smartphone
  • A full-length mirror or someone to take your photo
  1. Privacy FAQ +
  2. How we prevent cheating +
  3. Disqualification Limits +

Does this actually work?

Out of 716,337 DietBetters, 93.7% have lost weight during their challenges. Combined, they've lost 11,035,494 lbs and won $62,137,245. In other words...yes.

All results shown on DietBet are from actual users. Individual results may vary.

Don't take our word for it


about 8 hours ago
The game has begun! Lose 10% by the end of the game, and you'll be a winner. Each Round also has it's own goal and its own pot to split. Your goal for Round 1 is 3%.

Keep yourself accountable by weighing in unofficially or by submitting progress weigh-ins through Membership. To reward players for consistency each Wednesday we’ll randomly reward an exciting progress prize to one or more players who submitted a Progress weigh-in during the 7 days leading up to the drawing. The first drawing will be on Dec 20.. Any official weigh-in’s submitted within the 7-day Progress weigh-in window will automatically apply as the weeks Progress weigh-in. Remember, that only official, Referee-verified weigh-ins determine who wins.

Good luck and have fun!

Jaymie H. , Jessica E. , Kerry B. , Kiki and Nikita P. like this comment.

clark b. , Arnon P. , Adam O. , Whimsy and 24 others accepted the challenge.
about 5 minutes ago
The pot in Round 1 is now $1,800

Amber S.

about 1 hour ago - via iPhone
Hey everyone!

I’m 29 and trying to get back in shape as a work from home parent with a one-year-old. My kiddo runs around all day so the exercise shouldn’t be too hard to get into!

Good luck, everyone! We can do it!


about 1 hour ago - via iPhone
  • Breakfast on the go - let’s do this! 💪

Amanda C. and Amber S. like this photo.


about 7 hours ago - via android
Hi everybody! Reading the posts, I see one player turning 40, and one turning 50, in 2019. I myself am turning 60 in February, and am not happy to find myself 50 pounds over my desired weight. Milestone birthdays are really powerful motivators, and it's going to be great to watch us all move forward to our bright and healthier futures!

Jennifer L. , Julie A. and Staci K. like this comment.

View 1 more comment

Julie A.

Hi. I will be 56 in February. I find its getting harder to lose at my age. But I am going to try my best.
- about 4 hours ago - via android


Yes, I’m turning 50 in February and I want to lose 50 pounds too!!!! Well, maybe a little less depending on muscle mass once I get close to my goal weight. Let’s do this together!!! What type of exercise are you planning on doing? Which day is your birthday? Mine’s on the 13th!
- about 3 minutes ago

Anjali B. is now the MVP in the game! They invited 1 friend to the game yesterday.

about 8 hours ago

Nikita P.

12/10/2018 11:47PM - via iPhone
Here to beat the annual New Years Resolution to lose weight! Going to keep it healthy over the holidays. We got this!!

Amber S. , Julie A. , Staci K. , Fi and Tiph like this comment.

Zachary B. just invited 1 friend to join this game.

12/10/2018 8:02PM
Invite your friends!
Dian N. , Kerry B. , Moe , Elliott B. and 3 others accepted the challenge.
12/10/2018 5:53PM
The pot in Round 1 is now $1,462.50

Andrea likes this accomplishment.


12/10/2018 4:18PM - via android
I need all the good vibes headed this way! I'm just gaining and gaining:( . This challenge came at the perfect time, I graduate college and it's my 40th in June, to celebrate both, I'm GOING TO MEXICO! Whoo hoo, I need to lose 30 lbs by June 10th!!!

Amanda M. , Brenda C. and like this comment.

View 1 more comment


Thanks Jolie:grinning:
- 12/10/2018 7:50PM - via android


I’m wanting to lose 40+ pounds by June 7th so let’s do this together!! We’ve got this! You’re a ROCKSTAR and you’re going to kill it!
- about 1 minute ago

Ready to bet on yourself?