A WayBetter Company™

March Into Fitness Transformer - Win a F...

Lose 10% in 6 months!

March Into Fitness Transformer - Win a Fitbit Ionic!

Mar 13 - Sep 12/Game Closed







Mar 13



Close out winter strong by betting on yourself to lose 10%. One lucky player wins a Fitbit Ionic!



Game Begins

Mar 13

Last Day to Join

Mar 26


13th and 14th 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 662,873 DietBetters, 93.71% have lost weight during their challenges. Combined, they've lost 9,937,071 lbs and won $53,375,889. In other words...yes.

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

Don't take our word for it

Kathryn R.

06/22/2018 1:38PM - via iPhone
This article is so fascinating! Do you actually know what happens to the weight you lose? “If you lose 10kg of fat, precisely 8.4kg comes out through your lungs and the remaining 1.6kg turns into water. In other words, nearly all the weight we lose is exhaled.”


Chioma A. likes this comment.


06/21/2018 5:19PM - via android
  • I did it! I ran a 5k today without walking! I'm so excited. I went from not being able to run 1/2 a mile in January to running 3 (albeit very slowly) in June. Next up, running a 5k race!

TJ and Chioma A. like this photo.


06/21/2018 5:55AM

It's time to announce the 12 winners of this week's prize drawing! Congratulations to these winners who each won a Zero Gravity Hammock Chair! All of the winners will receive an email and in-game notification from us with details of your prize! Want a chance to be a prize winner next week? Become a member today

AllieAmy-Lynn R., Andy W., Dhara P.Katie H., marissa m., mark C., nonnie d., SamHortonSarah R., Shannon R., and PuddleStomper

Congratulations, everyone! Next week's prize will allow you to row in the comfort of your own home - it's a Water Rowing Machine Rower with an LCD Monitor! Each rower has a value of over $400, and we are giving away 10 of these! Studies have indicated rowing can work up to 85% of the body's muscular system without the joint impact of other conventional cardio exercises. All you have to do is submit a progress weigh-in between now and next Wednesday to be entered into the giveaway. 

Chioma A. , Brigitte , Sara D and Andy like this comment.

Casey C.

06/20/2018 7:09AM - via android
I've been so occupied with summer and entertaining kids I haven't put the time.e into eating properly and exercising, time to remotivate myself and get busy taking care of me 1st!

Brigitte , Andy , Chioma A. and Tamatha G. like this comment.


06/20/2018 5:46AM

It's weigh-in Wednesday so make sure to submit a Progress Weigh-in by midnight PST tonight to be entered into the drawing for a Zero Gravity Hammock Chair (valued at over $400!) We are giving away 12 of these floating, innovative hammock chairs so be sure to submit that weigh-in! Not a member? Become one today!

If you’ve already submitted a Progress Weigh-in this week, you’re automatically entered into the drawing. Official weigh-ins for games are also automatically applied to the Progress Prize drawing for Members. If you’re not sure whether you’ve submitted, check your Membership Page — it’ll say “Entered to win” if you’re all set. Progress Weigh-ins and Progress Prizes are Member-only features that help you stay on track toward your goal and reward you for keeping yourself accountable. Members can weigh in each week to be entered into the prize drawing. If you're not a Member, you can become one at any time

Andy and Tamatha G. like this comment.

Mariele S.

06/15/2018 10:31PM
  • 10 lbs under my 10% goal weight for this challenge... aiming for another 10 before this challenge ends. :) Can't believe how much some cash and a community can light a fire under you! ;)

Cleo I. , Ashleigh D and like this photo.

View 5 more comments

Mariele S.

And thanks guys! :heart::heart: After plateauing for years, this is almost magical :heart_eyes:

Mariele S.

Also, yup, it is 30%, which for me is about 50 lbs. For this round, the max was 24%, and I've only lost 15%. :) Thanks again for the concern, though. <3


06/15/2018 8:05PM
Round 3 has now been finalized! Congratulations to the winners! You will be notified by email if you are a winner and the , and the $26.88 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 3. Drum roll, please...
- Overall MVP: Kristi K.
- Most Liked Player: MjC
- Most Generous Liker: MjC
- Most Liked Comment: "I am disappointed that I didn't make this round's goal but I can only blame myself. I AM going to make my round 3 goal!!!! Watch this space :-))" by Julia B.

Good luck reaching your goal of 9% in Round 4!

Andy , ToriBrooke and like this comment.

Jen P.

06/14/2018 10:58PM - via iPhone
I’m bummed that I gained a couple of pounds since my weigh in last week for another game. I had a great stride going with a kickstarter game, which put me ahead of schedule for this game. I still made weight, but am trying to refocus and keep my momentum.

What has helped you stay on track and accountable?

ToriBrooke , MjC , Tamatha G. , Andy and Chioma A. like this comment.

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melissa k.

Ditto keto (or for me just low carb/sugar) and IF. Such a blessing to have found this!


Meal planning & prep is essential for me. Knowing what I'm going to eat, especially if I've already prepared it, makes it easier to say no to unhealthy options! IF has also been a huge help. There are times when I mess up, but it otherwise helps me stay on track.

Increasing my water intake as also helped. It's great for reducing water retention, but it also helps keep my tummy feeling full and prevents me from mistaking thirst for hunger so I don't overeat. ATM I aim for around 100 oz a day, and using the "My Water" app and its hourly reminders have been really useful, too! I don't always stick to just plain water either, but enjoy black iced tea (unsweetened), sparkling water, lemon water, etc.

Also, just pushing myself to get a workout in when I'd otherwise be sitting on the couch. I think about the goals I want to accomplish, my DB deadlines, and then get active. I end up thanking myself for the mental kick in the butt!


06/14/2018 3:30PM - via iPhone
  • This was a huge win for me, I credit a lot to the accountability in DietBet. Time for new goals!

ToriBrooke , mangolete and like this photo.

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melissa k.

Congrats! What an amazing accomplishment! I am looking forward to my 50lb day! I’m at 36 right now! Gonna keep on keepin on!

Mariele S.

Amazing job, congratulations!!


06/14/2018 6:55AM
  • Bring on Round 4! We've got this!

Ashleigh D , Mariele S. and like this photo.

Ready to bet on yourself?