Transform this October with Calfee for this upcoming Lean for Halloween: 31-Day HIIT Challenge! This Challenge will bring out your POWER and DETERMINATION with 31 fun and unique HIIT Cardio Classes led by Kristen Calfee! 

Challenge Officially Starts: Thursday, October 1, 2020

Challenge Officially Ends: Saturday, October 31, 2020

Deadline to Register: Saturday, September 26, 2020

(Registration is first-come, first-served. When the challenge is full, registration will close.)

In this challenge, you will receive:

✨Your very own HIIT Tarot deck (the decks are pre-sale, therefore, you will receive the deck near the end of October! Emails will be sent with tracking whenever the shipment has been completed!)

✨ 31 No-Equipment, Follow-Along HIIT Cardio workout videos that you get to keep (with apartment modifications) to help transform you mentally and physically 

  The chance to win $500 USD for the most inspirational 31-Day transformation

✨  Weekly Random CashApp Giveaways eligible for all who register with the challenge!

✨  Community Support and Motivation from the #goodiegang Facebook Group and GroupMe to motivate you to STICK to it!

✨  Follow-Along Stretch Routines for recovery 🌿

Accountability Calendars and Worksheets to keep you on Track and accountable with yourself and on social media! 


You will receive an email within 24 hours after purchase from with the links need to participate (please check spam as well. if you have not received an email from with the links for the challenge, please send an email to with your order # and she will help get the links to you ASAP!)


*Individual Results May Vary*
Kristen Calfee is not a certified personal trainer nor a registered dietitian. All information and advice provided are based on 5 years of trial and error on Kristen Calfee's behalf on her personal journey.
By participating in this plan, Kristen Calfee is not held liable for physical injuries or medical mishaps.
You should consult your physician or other health care professional before starting this or any other fitness program to determine if it is right for your needs. This is particularly true if you (or your family) have a history of high blood pressure or heart disease, or if you have ever experienced chest pain when exercising or have experienced chest pain in the past month when not engaged in physical activity, smoke, have high cholesterol, are obese, or have a bone or joint problem that could be made worse by a change in physical activity. Do not start this fitness program if your physician or health care provider advises against it. If you experience faintness, dizziness, pain or shortness of breath at any time while exercising you should stop immediately.
This challenge offers health, fitness and nutritional information and is designed for educational purposes only. You should not rely on this information as a substitute for, nor does it replace professional medical advice, diagnosis, or treatment. If you have any concerns or questions about your health, you should always consult with a physician or other health-care professional. Do not disregard, avoid or delay obtaining medical or health-related advice from your health-care professional because of something you may have read on this site. The use of any information provided on this site is solely at your own risk.
Developments in medical research may impact the health, fitness and nutritional advice that appears here. No assurance can be given that the advice contained in this site will always include the most recent findings or developments with respect to the particular material.
If you are in the United States and think you are having a medical or health emergency, call your health care professional, or 911, immediately.