A WayBetter Company™

How it works

Bet on yourself to lose weight. Reach the goal … split the pot!
Read each game’s rules below.

What's your goal?

1. Join

New games start several times a month. Pay your bet monthly, or pay the entire bet upfront and play month 12 for FREE. All you need to do is maintain your weight to win! Every month, everyone who wins splits a portion of the pot equally, with a final Grand Prize at the end. Weigh-ins, challenges, and prizes each month help you stay on track. You can do this!
Join game

Try it risk-free!

Cancel up to 14 days from the game start and get a full refund.
Money Back Guarantee

2. Weigh-In

Two days before your game begins, 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. The weigh in word acts as a time stamp for when the photo was taken, so it will change depending on when you weigh in. Please be sure to use the current word that is displayed on the screen as you begin the upload process. Each weigh-in submission is individually reviewed by a DietBet Referee.

Submit 2 photos

We never post weigh-in photos and your actual weight is keept private by default.

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. Play

You now have to maintain your initial weight for 12 months, with a +2% allowance to account for daily fluctuations (you can also lose up to 4%).

Maintaining your weight for a year is easier when you have regular accountability and incentives. That’s why we break up the Maintainer into 12 rounds, giving you 12 chances to win and 12 reasons to stay motivated!

Miss the goal for a round? Don’t worry—you can still win the next round and the Grand Prize at the end of Round 12. Half the bets are spread across the first 11 rounds, while the other half is split equally among everyone who wins the Grand Prize at the end of Round 12. The goals for each round remain the same, though your weight MUST be between -4% and +5% of your initial weight by the end of Round 11 to be eligible to win the final pot. This is to prevent unsafe sprints at the end.

Rounds 1-10: between -4% and +2%
Round 11: between -4% and +2% to win; within -4% and +5% to qualify for Round 12 (MANDATORY)
Round 12: between -4% and +2% (MANDATORY)

Win weekly prizes with weigh-in tokens!
Accountability leads to healthy habit changes! Players who weigh in regularly are more likely to succeed, so stay on track with weekly token weigh-ins. By completing a verified token weigh-in, you’ll be automatically entered to win that week’s “Surprize,” which is a cool prize like a Withings scale, $100 Amazon gift card, or FitBit. In order to participate in verified token weigh-in, you must purchase weigh-in tokens, which are available at any time during the game.

DietBet on-the-go!

Get the support you need everywhere you go. Share that workout or healthy snack, or help someone else avoid the office birthday cake. All from your phone!

4. Weigh-Out

At the end of Round 12, you'll have 48 hours to weigh out. All players should enter their final weight, though only winners will be required to submit photos for verification. Any player who weighs in between -4% and +5% of their initial weight by the end of Round 11 is eligible to win Round 12, even if they haven’t won any previous rounds.

5. Win!

Wow, you just got paid to stay fit! Within 24 hours after the final weigh-out period ends, the results are made official and the pot (less DietBet's fee) is divided among the winners. Winners are notified by email of their payout, which is added to their DietBet account as Points. You can apply your winnings to your next DietBet or cash out now via PayPal and treat yourself to something special… you earned it!

No Lose Guarantee!

This guarantee ensures that if you win your dietbet, you won't lose money. Most winners make money but in the event that your game has an unusually high percentage of winners, we'll forfeit our cut in order to ensure that nobody loses money. So the worst-case scenario is that you’ll end up maintaining a healthy weight for free, which is still a big win.


Compare Games

Which game is right for you?

How long is the game?

What's the goal?

How much do people lose?

How many lose weight?

What's the bet amount?

How much do people win?



4 weeks

Lose 4% of your body weight

Winners lose 9 lbs on average

96% of players

$30 on average

Winners get 1.5-2x their bet
on average



6 months

Lose 10% of your body weight

Winners lose 24 lbs on average

94% of players

$25/month or
$125 paid upfront

Winners get $325 if they win all 6 rounds, or $175 for winning round 6 on average



12 months

Maintain your body weight within +2%

We're still testing - check back later!

We're still testing - check back later!

$25/month or
$275 upfront

We're still testing - check back later!

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