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Determined December Transformer- 30 Give...

Lose 10% in 6 months!

Determined December Transformer- 30 Giveaways

Dec 11 - Jun 10/Game Closed







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 723,719 DietBetters, 99.94% have lost weight during their challenges. Combined, they've lost 12,264,283 lbs and won $62,263,235. 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 7 hours ago

It's our favorite time of the week—we’re announcing the 22 winners of the Fitbit Versa SmartWatch! Congrats to all of our winners! You’ll receive an email from us with details, so be on the lookout. Want a chance to be a prize winner next week? Become a member today! Without further ado...

Allie, Amanda B, Anke, Cicely, Erica R, Heather M, Jessica G, Jolene G, Juliann C, Katarzyna S, Kelsey Lynn, Kim, LeeAnn R, Lera C, Lydia G, Mary Pat, Rasita C, Sarah H, Sharon D, tasha l, Theresa, and Vickie!

Next week’s prize is a Ninja Foodi XL TenderCrisp Pressure Multi Cooker! Assassinate tough recipes with a pressure cooker that air-fries and crisps! 17 players will be selected to win.



04/17/2019 6:13AM

We offer weekly Progress Prizes to DietBet Members who complete Progress Weigh-ins.


This week's prize is a Fitbit Versa Smart Watch, valued at $200 each. Track every run, step and heartbeat from one sleek smart watch. 22 players will be selected to win!




Be sure to submit a Progress Weigh-in by midnight PST tonight to be entered. You know you’re all set if your Membership page says “Entered to win.”


Not a DietBet Member? Click here to become one today for prizes, exclusive features, and added accountability.


Progress Weigh-ins and Progress Prizes are weekly Member-only features that reward you for keeping yourself accountable. Not a U.S. resident? We’ll provide the cash value of the prize. Have more questions about membership? Check out the FAQ here!



04/15/2019 9:11PM - via android
  • Wishing everyone a successful Round 5!


04/15/2019 8:59PM - via android


04/13/2019 6:05AM
Round 4 has now been finalized! Congratulations to the winners! You will be notified by email if you are a winner and the , and the $33.06 will be added to your rolling winnings for this game will be added to your rolling winnings for this game. At the end of the game, all of the winnings you've accumulated from each round will be added to your Account Credits.

As promised, here are the top player titles in Round 4. Drum roll, please...
- Overall MVP: Anjali B.
- Most Liked Player: Cindy
- Most Generous Liker: Diane C.
- Most Liked Comment: "Sweet! Actually made my goal for the first time in this game for this round and surpassed it by 1lb!! Onto the finish!" by Stephen L.

Good luck reaching your goal of 10% in Round 5!

Diane C. , Kiki and Fi like this comment.

Diane C.

Was there a special prize for Most Generous Liker or just bragging rights??

My husband and myself have have really enjoyed doing the bets. It helped me a great deal and keeping me accountable for my weight and the calories I consume.


04/13/2019 4:37AM - via android
  • I missed my weigh in by a few hours, but it was worth it. Meet my newest "niece!" My best friend was in labor for almost 12 hours starting yesterday afternoon before little Karen finally graced us with her presence! XD <3

Diane C. , Nikita P. and like this photo.

Nikita P.

04/12/2019 10:58PM - via iPhone
Didn’t make it this month :-( well done to everyone who did, you got my monies!!

Fi and Kiki like this comment.


Only by 400 grams.
So don't feel bad. Just keep going. You'll feel better.

Nikita P.

Thanks...definitely can’t stop now


04/11/2019 8:20AM - via iPhone
  • The scale finally moved after a week this morning - this just after yesterday I decided to have some ice cream and a cookie at lunch. Probably not correlated, and I don’t recommend it as a diet strategy, but I’m moving in the right direction.

Diane C. , Fi , Shannon , Kiki and Whimsy like this photo.


Good job! Maybe it is. Your body thought: ah, there is the ice cream so I can let go of that fat lol.


04/11/2019 4:11AM - via android
  • Might make it slightly since I did very well last month but probably gained a little in total.
    But I worked out as much as I could so maybe muscle weight ??
    Good luck to all of you.

Diane C. , Fi and Kiki like this photo.


04/11/2019 1:10AM - via android

Diane C. , Kiki and Fi like this photo.

Ready to bet on yourself?