How many members a CrossFit box loses by not replying in time
We measured 1,151 real conversations from a box in Madrid. Two out of every three messages arrive when there is nobody to answer them, and that is where the money goes.
The short answer
A medium-sized CrossFit box loses around one interested person a day by not getting there in time. Not because it doesn't want to help them: because it was coaching, closing up or asleep when they wrote.
Where these numbers come from
We took the incoming conversations of a real box in Madrid, a client of ours, over 2026. 1,151 conversations across WhatsApp, Instagram direct messages and the website form.
The first thing that jumps out is when people write:
- 65% arrived outside the hours when somebody was watching the phone.
- The peak is between 9:30pm and 11:30pm, Monday to Thursday.
- Sunday afternoon is the second busiest moment of the week.
It makes complete sense: someone thinking about joining a box does it when their day ends, not when yours begins.
Why the hour matters so much
Whoever asks about a box almost never asks about yours alone. They open Instagram, look at three accounts in their neighbourhood and write to all three.
From there it's a race. The box that replies first with a specific slot — "I have room on Thursday at 7:30pm" — is the one that keeps that person. The other two reply the next day to a message that no longer has an owner.
It isn't that people are impatient. It's that they've already solved the problem with someone else.
The mistake of looking only at the response rate
Many boxes think they answer well because they end up replying to almost everything. And that's true: the response rate is usually above 90%.
The problem isn't whether you reply, it's when. A message answered twelve hours later counts as answered in any statistic, and yet it behaves exactly like one that was never answered.
There's another number worth looking at: how many conversations end in a booked trial class. That's where the hole shows, and in the whole journey up to someone signing up you can see at which step exactly.
What you can do
There are three routes, and only one works long term.
- Answering yourself at night. It works for a few weeks. Then you burn out. Even so, there are things you can set up today that hold up.
- Auto-replies along the lines of "we'll get back to you during opening hours". Worse than not replying: it confirms nobody is there and gives permission to leave.
- Someone who actually replies at any hour, with your prices, your schedules and a specific slot to offer.
The third is the one that holds the business up. It is exactly what Zunox does: it replies in under 30 seconds, asks what a coach would ask and leaves the trial class booked in the box's calendar.
How to measure this in your box this week
You don't need any tool. Take the last thirty incoming messages and write down three things:
- The hour each one arrived.
- How long you took to reply.
- Whether it ended in a trial class.
Sort by reply time and look for the line. In almost every box we've seen it sits around the one-hour mark. Below it, half end up trying the class. Above it, almost none.
The figures in this article
- 1,151
- conversations analysed
- Source: A client box in Madrid · 2026
- 65%
- of messages arrive outside staffed hours
- Source: A client box in Madrid · 2026
- 1 a day
- interested people lost on average
- Source: A client box in Madrid · 2026
Questions about this
How long do I have to reply to someone interested in my box?
The first hour. Whoever asks about a box is usually asking two or three at the same time, and stays with the first one that replies with a specific slot. After a few hours, the chance of them replying falls off a cliff.
When do people write to a CrossFit box?
Mostly at night and at weekends. In the 1,151 conversations we analysed, 65% came in outside the hours when somebody was watching the phone: between 9pm and 8am, or in the middle of a class.