Q1:2026 STARTS IN:
RUN90 - Challenge Entry - FREE!
That's right!! RUN90 is free to join for Q1:2026
Your entry includes:
✅ - Access to the official RUN90 challenge app
✅ - 90 Days of Accountability – Stay committed with structured support, alerts, and analytics
✅ - Community Chat – Connect with fellow challengers for motivation
✅ - Runner Tracking – Level up your progress with stats and challenge reporting
THE RULES ARE SIMPLE
CHALLENGE DURATION:
RUN90 is a 90-day, 100+ mile running challenge starting on the first day of each quarter and ending on the last.
Participants may join anytime, but all challenges end on the final day of the current quarter, no matter the start date.
MINIMUM WEEKLY ACTIVITY:
Participants must log at least one run per week.
Missing seven consecutive days results in disqualification for that quarter.
NO TREADMILLS:
All miles must be completed outdoors or on an indoor/outdoor track.
Treadmills do not count for RUN90.
LOGGING MILES:
Participants must log and submit their run miles consistently so progress can be tracked, validated, and celebrated.
FAIR PLAY:
Accuracy matters. RUN90 relies on honest reporting and integrity from every participant.
Run your miles. Log your miles. Keep the challenge authentic.
LEVEL UP:
Once participants hit 100 miles, the challenge continues.
They move into higher mileage tiers — 200, 300, 400, 500+, and beyond.
Each tier represents deeper discipline, stronger habits, and the determination to keep pushing to the very last day of the quarter.
RUN YOUR RACE:
Compete with others, push your edge, and strive for more — but above all, run your race.
Your pace. Your progress. Your growth.
Whether you finish at 100 miles or fight your way into the 500+ mile tier, every mile is a win and every run is a step toward a stronger version of yourself.
**We will use this number to provide important updates throughout the challenge.**
*By participating in RUCK90, you acknowledge that this physical challenge involves inherent risks, including the possibility of injury. You agree to take full responsibility for your own health, safety, and well-being. By joining, you also agree to follow all RUCK90 challenge rules, including submission requirements and disqualification policies. Participation in RUCK90 releases Buffalo Mentality, its affiliates, and organizers from any and all liability related to injury or harm that may occur during your involvement.