The Great Outdoors Transformer - $700 in...

Lose 10% in 6 months!

The Great Outdoors Transformer - $700 in REI gift cards!

Sep 08 - Mar 07/Game has ended
Join another game

$40

BET PER MONTH

142

PLAYERS

$28,480

POT

Sep 08

START DATE

DETAILS

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Get outside and get active! Lose 10% of your body weight in 6 months to win this game. 2 lucky players will also win a $350 gift card to REI for some brand new outdoor gear at the end of Round 4.

IMPORTANT DATES

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Game Begins

Sep 08

Last Day to Join

Sep 21

Weigh-Ins

8th and 9th of every month

HOW DO YOU PLAY?

Bet $40

per month

Lose 10%

in 6 months

Win!

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 1,039,224 DietBetters, 94.41% have lost weight during their challenges. Combined, they've lost 20,248,158 lbs and won $101,121,996. In other words...yes.

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

Don't take our word for it

Robert S.

03/09/2026 7:30AM
Never really won before how does it work and what do we win?

George P. , Em and Mary G. like this comment.

Paul A.

Congrats Robert. It looks like there will be a few more winners than on the last round which makes sense since you don't have to lose any more weight and some people will catch up over the last month. So about $180 for the rounds so far and similar for the final round. Say about $360 total, so your winnings would be $160 after taking off your $200 entry fee.

Beth S.

Congratulations on your first win! :tada:

Ready to bet on yourself?