Summer Shape-up Challenge!

HOW DO YOU PLAY?

Bet $30

to start

Lose 4%

in 4 weeks

Win!

Split the pot

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

Privacy FAQ +
How we prevent cheating +

Does this actually work?

Out of 1,039,224 DietBetters, 93.64% have lost weight during their challenges. Combined, they've lost 19,764,875 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

Success Story #126: Margaret

Lost 84 lbs

Won $667

"I loved the motivation from the other players, it wasn't about the money..."

Over the past 11 years I have been married to an amazing man who is soon to be retired from 20 years in the Air Force. I had 2 amazing kids and I g...
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Success Story #152: Kate

Lost 55 lbs

Won $1,585

"It's really is a way to reward yourself for losing weight."

My work life and social life leave me without a lot of "me" time! Because life has been so busy for a few years now, I ...
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Success Story #165: Matthew

Lost 62 lbs

Won $3,051

"Since playing DietBet games, my kids have been picking up on my healthy lifestyle changes."

I’ve known for a long time that I needed to drop the extra weight I had on. More importantl...
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Success Story #173: Mikele

Lost 50 lbs

Won $4,349

"My husband and I are renewing our vows and I am able to fit into the dress of my dreams!"

After injuring my back last year, I gained a lot of weight and was the heaviest I had ever been i...
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Success Story #93: Jo

Lost 56 lbs

Won $2,200

"I thrive on competition and deadlines."

I first started my weight-loss journey when I signed up for a free 5k in my area. I've never been a runner, but I knew I needed to make some change...
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Success Story #158: Robert

Lost 166 lbs

Won $4,502

"I have peace of mind knowing that physically I can do almost anything that I want, and that my weight is no longer holding me back."

The moment I knew I needed to lose weight was in 2013, when I was living...
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Success Story #51: Marian

Lost 71 lbs

Won $1,352

"Why do I win every bet? Losing is not an option. I am betting against myself."

I am a 50 year old, single parent of a 16 year old. I have been fat my entire life, fattest kid i...
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Success Story #164: Brittany

Lost 45 lbs

Won $341

"Being able to fit into smaller clothes puts a smile on my face."

I got my "before" picture taken at work. When I went to pick it up, it was laid out on a company table with some other pictures and I couldn't find...
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Success Story #163: Tammy

Lost 85 lbs

Won $90

"Now, I wake up each morning actually excited to start the day."

About two years ago, I was 270 pounds and absolutely miserable. I had no energy and was depressed about it.

Being overweight wasn’t ne...
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Success Story #148: Rick

Lost 81 lbs

Won $1,044

"What I liked best was the support of other participants in the game."

I had a black belt in Tae Kwon Do when I graduated from college. But over the years, I let myself go and eventually reached my highest weight of 28...
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Success Story #1: Brittany

Lost 32 lbs

Won $748

"I was able to have fun losing weight while making money."

My dad's side of the family is all overweight. They have high blood pressure, weak knees, diabetes, etc. I realized that I didn't want to end up li...
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Success Story #119: Stephanie

Lost 50 lbs

Won $254

"Why not get paid to lose weight?"

My entire life I've been overweight. My parents were the type that wouldn't let you leave the dinner table until your plate was clea...
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Success Story #177: Cat

Lost 44 lbs

Won $1,493

"I never feel like I’m alone - I can connect with players instantly for support!"

I’m passionate about the outdoors, and have lived a very active life because of that. I&rsq...
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