JBG Virtual Monthly Challenge
16 Distances. 4 Months. 1 Challenge.
Your Road to 11th Edition of JBG Kolkata Marathon
Sportiz is happy to introduce the JBG’ Virtual Monthly Challenge, a FREE virtual running challenge designed to motivate participants, help them stay consistent, build long distance mileage and prepare them for the 11th Edition of JBG Kolkata Marathon in November.
The challenge will be hosted on the JBG Endura 101 Mobile App, available on both Android and iOS.
About the Challenge
The Monthly Challenge is a 4-month virtual fitness challenge starting from July. Every month, participants will be given 4 target distances to complete.
Participants can complete these distances on any day, at any time, either indoor or outdoor. They may choose to walk, jog, or run the target distance. There are no fixed dates or time or time limit to do these runs. Participants may choose to run on weekends, first 4 days of the month or the last 4 days of the month. The run should be synced on starva app and synced with JBG Endura app and most importantly the strava profile should be made public. Each run distance should be completed in 1 single activity. You cannot combine multiple short runs in the day to accumulate a long distance.
There is no registration fee to participate in this challenge.
Challenge Format
Participation is FREE
Duration - The challenge will run for 4 months on the JBG Endura 101 app:
| Month | Challenge Status |
|---|---|
| July | Month 1 |
| August | Month 2 |
| September | Month 3 |
| October | Month 4 |
Monthly Target Distances
Each month, 4 different target distance. The participant is expected to complete all 4 target distances within that month. Once he achieves each target distance – a badge will unlock on the app in your profile.
How to Complete the Challenge
Participants must complete each given distance at one go, in one single activity.
For example, if the target distance is 15 KM, the participant must complete the full 15 KM in one activity recorded on strava. The distance cannot be broken into multiple smaller runs or walks.
Participants can complete the activity:
- On any day of the month
- At any time
- Indoor or outdoor
- By walking, jogging, or running
No other activity formats will be accepted.
The participant is expected to complete all 4 target distances within each month. Once he achieves each target distance – a badge will unlock on the app in your profile.
App & Data Syncing
The challenge will be hosted on the JBG Endura 101 Mobile App.
Participants must sync their activity data through their Strava account, using any device or wearable of their choice.
The activity must be properly recorded and synced to be considered valid.
Eligibility to claim the Exclusive Limited Edition Event T-Shirt
Participants who successfully completes 2 or more months out of this 4-month challenge will become eligible to claim the specially designed limited editon tshirt / jersey of 11th edition JBG Kolkata Marathon at a special price.
To claim the tshirt, the participant must visit the Bib expo venue on 27th or 28th November 2026 and show the achieved monthly badges at the designated counter.
The participants is not obliged and under no compulsion to register or participate in the main event to participate in this monthly challenge.
Important Rules
- Participation in this virtual challenge is FREE with no registration fee.
- The challenge is open to participants who register/join through the JBG Endura 101 Mobile App.
- Participants must complete the monthly target distances within the respective month only.
- Each target distance must be completed at one go, in one single walk, jog, or run.
- Participants may complete the activity indoor or outdoor.
- Only walking, jogging, and running activities will be allowed.
- Cycling, swimming, gym workouts, step counting, vehicle-assisted movement, or any other activity type will not be accepted.
- The participant must sync activity data with Strava through the device or wearable being used.
- Any activity data found to have discrepancies, irregularities, or suspicious entries may lead to disqualification.
- Sportiz reserves the right to verify, accept, or reject any submitted activity data.
- There is no fixed pace or time limit for completing the distance, but the complete target distance must be recorded in one activity.
- Manual, edited, incomplete, or unverifiable activity entries may be rejected.
- Completion of the challenge does not include free registration for JBG Kolkata Marathon.
- The limited edition T-shirt offer is available only to eligible participants who complete the required challenge criteria.
- The discounted T-shirt price, purchase process, size availability, and delivery details will be announced by Sportiz separately.
Objective of the Challenge
The purpose of the JBG Kolkata Marathon Monthly Challenge is to encourage participants to stay active, build consistency, achieve monthly running goals, and prepare themselves for the 11th Edition of JBG Kolkata Marathon in November.
This challenge is not about speed. It is about commitment, discipline, and progress.
