Spring Into Fitness Transformer - NikeID...

Lose 10% in 6 months!

Spring Into Fitness Transformer - NikeID Giveaway!

May 23 - Nov 22/Game has ended
Join another game







May 23



Get moving and losing for National Fitness Month! Tons of motivation plus a NikeID giveaway in Round 1!



Game Begins

May 23

Last Day to Join

Jun 05


23rd and 24th 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 1,044,117 DietBetters, 87.12% have lost weight during their challenges. Combined, they've lost 17,336,812 lbs and won $104,266,887. In other words...yes.

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

Don't take our word for it

Sengul T.

11/26/2017 9:35AM
I wonder how you can have 155 winners in round 5 but 161 in round 6. I thought that in order to win in round 6 you had to win also in round 5?

Red and Sengul T. like this comment.


Nope - round 5 is the total 10% but you have to be at 6% by round 5 to compete in round 6. So they let you try to lose 4% in the final month to catch up.

Stef P.

Bec diet bet takes more than they say they do :joy:

Danielle C.

11/24/2017 5:59PM - via android
Its there a way to do my weigh in again??? I think I messed up. I took 2 pics standing on the scale and no pics of the actual scale reading. For some reason I thought it asked me to do another full body picture :( Im well past my goal but I dont want to lose this bet for missing a step!

April F. and Tracy like this comment.

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You can re-submit. The interface has been messing up. When I did my last weekly weigh-in it did the same thing to me; it asked for a full-body photo in both step 1 and step 2 and never gave me a word or asked for a scale photo. I resubmitted, and itworked that time.

Danielle C.

They asked me to resubmit it :) They asked for a full body pic again but I took a pic of the scale and it worked! :)

Jessica V.

11/24/2017 4:01PM - via iPhone
Omg!!! I almost forgot to weigh in! Haha thank goodness my family is doing thanksgiving this weekend

Sharon UK , Michelle O. and RJ like this comment.

Shanynn R.

11/24/2017 12:55PM - via android
  • Thrilled to have gone from a size 14 to an 8 over these past 6 months! Congrats to everyone!

Valmiki R. , Megan M. and like this photo.

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That's so cool!!

Michelle O.



11/24/2017 5:18AM
If I haven't heard back on final approval yet and I weighed in early yesterday, should I be nervous? I have to work all day at my office today, and I don't want to eat a bunch of food, come home, and find out that I have to re-weigh. My weight is just below the line in the morning and just above it at night after a regular day of eating.
View 2 more comments


Or maybe it's the difference between the app and the full site. Just now thought of that.

Jacqui B.

I think that screen shot was of the email they send out after they verify your weigh in

Stef P.

11/23/2017 10:42AM - via iPhone
Well 45 pounds down in 6 months and 14.5 inches lost! Also down 5/6 pants sizes went from 16 to a 10/11. That's some progress!!! Glad I did this!

Janeth , Jess and like this comment.

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That's great!

Sharon UK

Well done hun x


11/23/2017 10:32AM
  • Hope you get yours soon! Congratulations! And Hello Turkey Dinner!

Sarah , Michelle O. and like this photo.


11/23/2017 10:26AM
Weigh-in verified. Let the eating commence!! Hahaha!!! 😁

Bu11wink1e , Sarah and like this comment.


11/23/2017 9:43AM
I'm so happy!! Made my final goal weight and a bit more. Happy Thanksgiving, everyone!

Bu11wink1e , Sarah and like this comment.

Jessica S.

11/23/2017 9:24AM - via iPhone
Final weigh-in submitted!! Hope it gets approved quickly, about to leave for my moms for Thanksgiving dinner LOL. Congratulations to everybody who succeeded in losing even a little bit of weight – we are all on our way to better health :)

Jess , Sarah and like this comment.

Ready to bet on yourself?