A WayBetter Company™

Run Your A$$ Off

Lose 4% in 4 weeks!

Run Your A$$ Off

Dec 31 - Jan 27/Game has ended
Hosted by RunWithJess







Dec 31





Friendly competition meant to inspire, drive & motivate. runwithjess.com



Game Begins

Dec 31

Last Day to Join

Jan 13

Final Weigh-In

Jan 28 - Jan 29



winners Prize pack from runwithjess.com losers Misc goodies from runwithjess.com


Bet $10

to start

Lose 4%

in 4 weeks


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
  1. Privacy FAQ +
  2. How we prevent cheating +

Does this actually work?

Out of 708,223 DietBetters, 93.72% have lost weight during their challenges. Combined, they've lost 10,898,200 lbs and won $61,136,629. In other words...yes.

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

Don't take our word for it


07/05/2015 7:57AM

Keep the momentum going! A new game has been set up for all players starting on Jul 06, 2015.

Good luck!


02/11/2013 8:58PM
if I want to join another bet do I weigh in all over or do they take my last weigh in as my current weight?

Maralee S.

They gave me the option of either when I signed up for another one a few weeks ago.


thank you!!

M F.

02/02/2013 1:23PM
went to a friends wedding and ate my whole days calories just for lunch today

Sierra L.

02/02/2013 12:30PM
Where is this round two everyone is talking about??

A G.



02/01/2013 5:46AM
When do the bonus stakes get awarded?

Angela G. , Deena F. and Amber N. like this comment.


I'm only guessing, but probably at the end of round 3?

M F.

would have been nice for them to have stated that somewhere

Nicolle H.

01/31/2013 11:39PM
My friend and I missed the final weigh-in but that is alright. We did our best and we are proud that we tried in the first place!

Mille W.

01/31/2013 9:12AM
Wow! I just logged on to post my final weigh-in because it is the last day of the month and I thought this game was for the ENTIRE month of January. My bag for not reading the fine print. I am disappointed that the game is over and it is only 9 a.m. on January 31. Why would the game be over before January 31? I would have only won $21.

Jessica C.

Each round is 4 weeks. The goal is 4% of body weight in 4 weeks.

Angela G.

All the email communications from DietBet indicate that it's a 28 day challenge. Sorry you missed that. :/

Fancy Nancy

01/31/2013 8:15AM
Couldn't officially weigh in because my new born was in the hospital for surgery...oh well I did it and am a winner in my house!
View 1 more comment

Fancy Nancy

She's actually doing awesome! Thanks so much!

Jessica C.

Glad your baby is o.k.!

Beth D.

01/31/2013 5:08AM - via iPhone
Dietbet takes 15% before they split the pot up
View 1 more comment

Jessica C.

Gaining $11.69 for losing weight was certainly better than the usual gaining $0 for losing weight. I don't understand the issue. It costs money to run the website. It's not a charity website.

Ryan S.

Huh? What don't you like? They are supposed to run this website for free?

Erica H.

01/30/2013 7:44PM
If the pot was $7450, and 292 people actually won, how come we only got $21.69? $7450/292 is $25.51...???
View 2 more comments

Amanda S.

Dietbet takes 15% of the pot.

Cheryll C.

I think Diet Bet gets 5% and the person who starts the game gets 10% off the top.

Ready to bet on yourself?