**A challenge is one measure, one window and a leaderboard.** Most steps in March. Most workouts logged in a fortnight. Who can check in every day for three weeks. Owners and admins create them; everybody else decides, contest by contest, whether to take part.
[Inviting and managing members](/know/inviting-and-managing-members) covers the rest of running an organization.
## Creating one
Open your organization, go to **Challenges**, and choose **New challenge**. In a browser it is at /org/your-organization/manage/challenges/new.
You give it five things:
1. **A name.** What people will see in the room and in their notifications. 1. **A description**, if it needs one. The rules, the prize you are handing out yourself, whatever is worth saying. 1. **What is counted.** One of the seven measures below. 1. **When it runs.** A start date of today or later, and an end date. A challenge can run for up to **92 days**. 1. **How the leaderboard reads.** Named or anonymous.
There is also a **Save as draft** box. A draft is visible only to the people who can manage challenges, and nobody is told about it. **Publishing is what sends the notification**, so you can write one up on Monday and open it on Thursday.
## The seven measures
Each one is counted for you from what a member already logs. Nothing here asks anybody to turn on a paid feature in order to compete.
| Measure | What it counts | |---|---| | **Workouts logged** | Completed training sessions inside the window | | **Active minutes** | The active minutes on each day, from the day's own figure, or from the sessions logged when there is no figure for the day | | **Steps** | Steps on each day of the window | | **Distance** | The distance recorded on completed sessions, in meters | | **Water logged** | Fluid ounces logged across the window, counted the way each member's own **Count all liquids** setting says | | **Days with a fast** | The number of days on which a fast was completed. A day counts once, however many fasts were finished in it | | **Daily check-ins** | One tap a day, in the challenge itself. A second tap is not a second point |
**Daily check-ins is the one that needs nothing else.** It counts turning up, so it works for a group where people track different things, or nothing much at all. Everybody who has opted in sees a **Check in for today** button on the challenge while it is running, and it says **Checked in for today** once they have.
## Taking part is a choice, per challenge
**Nobody is entered into anything.** Every member of your organization sees the challenge, what it measures and when it runs, and then makes their own decision. Somebody who has not opted in contributes nothing, appears nowhere, and shares nothing.
Before they enter, Loopa tells them exactly what entering shares, in these words:
: *Shares your* <measure> *total for* <start> *to* <end> *with the other people in this challenge.*
**That is the whole of it: one number.** The total for that one measure, over that one window. No daily breakdown, no history, no source, nothing that could be read back into a particular day, and nothing at all about anything else the member logs.
A member can **leave a challenge at any time**, and nothing of theirs appears on the board afterwards.
## Named and anonymous leaderboards
You choose one when you create the challenge:
* **Named**. Everybody who opted in appears by name and photo, with their total. * **Anonymous**. Everybody sees the totals and the order, and nobody sees a name but their own. Each person can still find themselves on the board, because knowing your own position is not a disclosure to yourself.
Anonymous is the kinder default for a weight-adjacent measure or a group where people do not all know each other. Named is better where the point is cheering for somebody by name.
**The board is for the organization.** Everyone in your organization can read it, whether or not they entered. That is what the line above tells people before they opt in.
**Ties share a rank, and the next rank skips.** Totals of 120, 120 and 95 rank first, first and third. Two people who did the same amount did the same amount.
Totals update as members log. There is no overnight wait and no refresh to press.
## Editing, closing and deleting
**Before it starts**, a challenge is fully editable: name, description, measure, dates, leaderboard mode. You can also delete it outright, and nobody will have entered anything yet.
**Once it has started, the rules are fixed.** The measure and the dates are what everybody opted in under, and changing them afterwards would move the terms somebody already agreed to.
**Closing it early** is always available. Closing ends the contest and freezes the result. The leaderboard stays readable, and everybody who took part is told where they finished. A challenge whose end date has passed closes on its own in the same way.
## What members are told
Two notifications, and only two: **a challenge has opened**, and **a challenge has closed, with their own final position**. Nobody is pushed somebody else's placing, and there is no notification for a draft.
## Somebody who leaves the organization
They come out of every contest still running, at once. **A placing they already earned in a challenge that has finished stays on that board**. The result happened, and other people took part in it.
## What a challenge costs
**Nothing, on either side.** Creating and running challenges is part of being an owner or admin, with no purchase attached. Entering one, competing in it and appearing on the leaderboard is free for every member, including members on Loopa Basic.
Loopa collects nothing from a challenge and there is no field for a fee or a prize pot. Anything you want to hand the winner is between you and them.
See also: [Inviting and managing members](/know/inviting-and-managing-members), [Creating an organization](/know/creating-an-organization), [Joining an organization](/know/joining-an-organization), [Trending & Leaderboards](/know/trending-and-leaderboards), [The Activity screen](/know/the-activity-screen).
