The most fun you'll ever have losing weight!

2The pot grows as players join
3Whoever hits the goal splits the pot!

How much weight do you want to lose?

4% in 4 Weeks

THE KICKSTARTER

A short, sweet kick in the pants

Everyone who loses 4% splits the pot.

FIND A GAMEOR, START YOUR OWN GAME

10% in 6 Months (NEW!)

THE TRANSFORMER

Ready to transform yourself?

Monthly pots and a big prize at the end.

JOIN THE NEXT DIETBET 10LEARN HOW IT WORKS

Featured Games

Late Entrants Permitted Until Day 14

The Transformer (Dec 2 - June 1)
SIX-MONTH GAMEThe Transformer (Dec 2 - June 1)
$25 Bet
/
60 Players
Lose 10% in 6 months and give yourself the gift of a healthier you!
Join GameStarts in 4 days
$8,025pledged
Danni's Dietbet: WINNER of NBCs Biggest ...
Danni's Dietbet: WINNER of NBCs Biggest Loser
$25 Bet
/
1,130 Players
You can be a LOSER too with Danni Allen 2013 NBC's The Biggest Loser WINNER
View Game18 Days Left
$28,250in the pot
Gilad's Get-Off-The-Couch Challenge
Gilad's Get-Off-The-Couch Challenge
$30 Bet
/
234 Players
Join Gilad from Bodies in Motion - Lose weight & tone up for the holidays.
View Game19 Days Left
$7,020in the pot
The High Roller
Official High Stakes GameThe High Roller
$150 Bet
/
17 Players
Dietbet's official high stakes game! Video weigh-ins required.
View Game19 Days Left
$2,550in the pot
Get Your sElf Off the Shelf DietBet
Get Your sElf Off the Shelf DietBet
$25 Bet
/
683 Players
A Thanksgiving to Christmas Stay-On-Track Challenge.
View Game24 Days Left
$17,075in the pot
Jeff Nichols From NBC's The Biggest Lose...
Jeff Nichols From NBC's The Biggest Loser!
$30 Bet
/
296 Players
Join TBL Season 14 runner up Jeff Nichols to keep yourself accountable over the holidays and get a jumpstart on 2015!
Join GameStarts in 3 days
$8,880in the pot
$
Paid out
to winners
  • When I joined DietBet 3 months ago I had no idea
    sitting here now that I would already be down 30+ lbs.
    Another 35 to go. Can't wait to get there! Can't believe
    that it is so close. Haven't been this weight in 9 years.
  • Officially out of the Obese BMI category
    and into the overweight category.
    I WILL be in the normal range
    by the time this bet is over.
  • DietBet really motivated me. I lost almost 16 lbs
    by drastically changing my habits. For the first time in 10 years,
    I'm under 230 lbs and I'm so close to One-derland!
    Thank you for the motivation. It changed my life.
  • New websites and apps known as weight loss
    wager programs are encouraging dieters to gamble
    their way to a leaner figure, betting on whether
    they can shed unwanted pounds.
  • Four-week games organized by DietBet, have
    been run at more than 500 companies, allotting cash
    prizes to any participant who sheds 4% of body weight.
    90% of players slim down, averaging a 5.4-pound loss.
  • New web services don't just help keep you
    focused on your goals. They pay you to stick to them.
    Result: You feel more committed to your ambitions
    and the odds that you'll achieve them rise.
SERIOUS ABOUT GETTING IN SHAPE? START YOUR OWN DIETBET™ 90% OF DIETBETTERS LOSE WEIGHT!
Or join an open game >

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DietBet is also perfect for...

Workplace challenges

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shape like a DietBet. Learn More

Charities

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than a bake sale. Learn More