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Weight Loss Challenge 2021-2022

  • Venue & Location

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  • Fee & Registration

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    Free, Registration Required


The St. Luke’s Weight Loss Challenge is designed to help you achieve a healthy weight and an active lifestyle. The goal is to encourage you to lose 2% of your total body weight within 180 days and 5% of your total body weight by the final weigh-in September 2022. Those who meet all requirements (weigh ins and weight loss) will equally split the $20,000 prize money! 

With your paid registration you receive: 

  • A chance to earn part of the $20,000 prize money 
  • Access to a free health coaching app to stay accountable and connected 
  • An online toolkit with healthy lifestyle resources and ideas 
  • Weekly bite size health tips and recipes 
  • Challenges via our health coaching app with prizes! 
  • Ask the Expert sessions featuring engaging speakers highlighting the dimensions of well-being; physical, social, emotional, occupational/financial, environmental, spiritual, physical, and social 
  • Prizes for participating and persevering 


Registration Instructions

Register Online

Registration opens August 17, 2021

  • $55 (August 17- October 15) – early bird registration 
  • $70 (October 16 - October 29) – general registration 
  • $39 (Oct 30 – September 2022) – late registration 
  • Individuals who wish to join the Challenge after the October 29, 2021 deadline can register, pay, and receive all the benefits of the program but WILL NOT qualify to compete for prize money. 
Download the Carium app 

The Carium app is the platform participants can receive the weekly health tips, weigh-in updates, webinar reminders, step challenge invitations and perseverance prize opportunities directly to their phone! It’s a great way to stay engaged and win prizes! Carium is FREE to join for Weight Loss Challenge participants – and it’s easy to download. To get started follow the instructions below.  

  1. Download the app from the Apple or Google Play Store.
  2. Install and open Carium. Tap “Join Carium” at the bottom and enter code SL-WLC.
  3. Check your email for a message from [email protected] and click “Verify Email” to confirm your account. If you are a St. Luke’s employee we suggest using your personal email and not your email address. 
  4. If you need further assistance downloading the app, please watch the Carium app 101 webinar.
  5. If you have downloaded and joined Carium but are not receiving your E-tips through the app, please email us.
Attend all required weigh-ins

If you miss one of the required weigh-ins you are still in the Challenge and will continue to receive health tips, attend classes and programs and can win perseverance prizes, but you are no longer qualified to win prize money. (please dress appropriately—i.e., t-shirt and shorts/capris/sweats; no jeans)  

Required Weight Checks 

Weigh-in Dates: 

  • Initial: October 25-October 29, 2021 – by appointment only for most sites!  
    • If you attended a final weigh-in for the 2020/2021 challenge, we can use it as your initial weight for the 2021/2022 challenge 
  • 90-Day: January 17-22, 2022 (GOAL - maintain weight over the holidays; within 2 pounds of initial weigh in OR weight loss of any amount) 
  • 180-Day: April 18-22, 2022 (2% body weight lost by 180-day weigh-in) 
  • Final: September 12-16, 2022 (5% body weight lost by final weigh-in) 

NOTE -  See location sheet for a weigh in site near you and to access the link or the phone number to make an appointment.  

Non-St. Luke’s employees must complete the emailed W9 and submit by September 16, 2022 at 5:00 p.m. to receive prize money! 

Register Online

Special Instructions


Attend all the required weigh-ins to qualify for the prize money. If you miss any of the weigh-ins, you'll still be in the challenge and will continue to receive health tips, attend classes and programs, and can win perseverance prizes, but you'll no longer be eligible for the prize money.

Check back for weigh-in dates and locations.

Download the official rules and information for a full description of the Weight Loss Challenge.

Weigh-in Sites

Click each question below for its answer:

Do I have to register online to participate in the challenge?
Yes, it’s the ONLY registration option as it helps ensure the accuracy of your information.

Register Online

Can I still participate and win if I'm an employee of St. Luke's?
YES! Only those of us who directly organize and promote the Challenge are unable to compete for prize money.  
I'm a St. Luke's employee? Can I pay with Employee Payroll Deduction?
No. Unfortunately, we are unable to offer this option due to legal constraints. 
Can I participate if I have had bariatric surgery?


Can I participate if I'm pregnant?
No. Unfortunately, due to health and safety concerns, pregnant women are not allowed to participate for prize money.  
Can I form a team?
We encourage you to gather friends, family and colleagues to create a team for social support! However, there is no additional prize money for a team category. 
Can I get my money back?

Please read all the requirements and rules of the Challenge prior to registering, as all registrations are NON-REFUNDABLE and non-transferable to next year’s event, NO exceptions. 

This policy stays in effect whether you are injured, have an unexpected business or family emergency, pregnancy, etc. There are NO exceptions.  

What happens after I'm registered?
You need to schedule your first OFFICIAL WEIGH-In and we encourage you to download the Carium app!  Please visit the weigh-in sites links to check days/times they are open to schedule your initial weigh-in. 
Do I need to download the CARIUM app to participate?

No, you don’t - BUT – we highly suggest that you do! We will be pushing out all of our information three times a week directly to your phone and the quarterly challenges will only be logged via the CARIUM App.  It’s a great way to stay engaged AND win prizes! To get started download the app from Google Play or the Apple App store. Install and open Carium. Tap “Join Carium” at the bottom and enter code SL-WLC. 

Check your email for a message from [email protected] and click “verify email” to confirm your account. We suggest using your personal email NOT your email when registering for Carium. 

If you need further assistance, please email us or watch our Carium App 101 webinar.  


How are the winners determined?

Winners are determined by the percent of body weight lost – NOT the number of pounds lost. 

Here’s how you figure it out: 

  • Take the Number of pounds lost (ex. 10 lbs) 
  • Divide by the STARTING WEIGHT (ex. 10 lbs divided by 200 = .05) 
  • Multiply by 100 (ex. .05 x 100 = 5%) 

How is prize money distributed?

GENERAL PARTICIPANTS whose final weight is 5% or LOWER than their starting weight and KEEP IT OFF CASH participants whose final weight is the SAME or LOWER than their starting weight, will win an equal share of the $20,000 prize money to be split among the other eligible participants. 

How often do I need to weigh in?

There are FOUR weigh-ins for the 2021/2022 program. 

  • Initial:  October 25-October 29, 2021 
    • NOTE - If you attended a final weigh-in for the 2020/2021 Challenge we can use it as your initial weight for the 2021/2022 challenge 
  • 90-Day:  January 17-22, 2022  
    • GOAL - maintain weight over the holidays (no more than 2 pounds over initial weight) OR any amount of weight loss 
  • 180-Day:  April 18-22, 2022 (2% body weight lost by 180-day weigh-in
  • Final:  September 12-16, 2022 (5% body weight lost by final weigh-in) 

 In order to compete for prize money, you must attend EACH weigh-in at one of the official weigh-in sites. 

Am I out of the Challenge if I miss a weigh-in or don't hit the weight loss goal?
You won’t be able to win a part of the prize money BUT you will still receive the weekly health tips, you can attend “Ask the Expert” webinars, participate in Carium challenges and win perseverance prizes.  
What should I wear when I weigh in?

Please wear a t-shirt and shorts/capris/sweats. 

Jeans/heavy clothing are discouraged. It will be marked on your weigh-in form and you will be expected to wear similar clothing at your final weigh-in.  

Where are the monthly weigh-in sites?
What is a KEEP IT OFF CASH participant and do I need to attend all the weigh-ins?


  • Must have starting weights (Oct/Nov 2021) at (or lower) than their final weights from the WLC in September 2021. 
  • Must attend all required 2021/22 weigh-ins; weight cannot be more than 2 pounds over starting weight at the January and April weigh-ins; weight CAN be lower than starting weight. 
  • Those whose final weights are the SAME or LOWER than their starting weights will win an equal share of the $20,000 prize money to be split among the other eligible participants.

How do I win prize money as a KEEP IT OFF CASH participant?
Those whose final weights are the SAME or LOWER than their starting weights will win an equal share of the $20,000 prize money to be split among the other eligible participants.
Do I have to pay taxes on the perseverance prizes?

Any valuation of the prize(s) received is based on available information provided to St. Luke's, and the value of any prize awarded may be reported for tax purposes as required by law. 

Each winner is solely responsible for reporting and paying any and all applicable taxes related to the prize. 

Notwithstanding the foregoing, any prize received by an employee of St. Luke's, with a value in excess of $25.00, will be reported to St. Luke's Payroll Department so appropriate taxes can be deducted and reporting can be completed.

What does this mean? 

If you are St. Luke's employee, the St. Luke's Weight Loss Challenge will report the value of any prizes awarded to you to the St. Luke's payroll department so appropriate taxes can be deducted on your behalf.  

If you are not a St. Luke's employee, it is your responsibility to report and pay any and all applicable taxes on any prizes awarded to you.

When is the Final Celebration?
We will celebrate all your success on September 28, 2022 at 6 p.m. – location/date TBD in Twin Falls and Boise/Meridian.   
Do I have to attend the Finale in September 2022?
No, but you are encouraged and invited to attend this fun celebration with other challenge participants!