How to increase conference attendance when the last six weeks are doing all the work

To increase conference attendance, work with the registration curve. The median paid-event registration on PheedLoop’s platform arrives 41 days out, so about half of a paid conference’s registrations land in the last six weeks; Maritz found 45% of trade-show attendees registered in the final four. Re-book past attendees by phone early, then aim the last six weeks at first-timers.

At a glance: the conference registration curve

• The shape: a long, thin early tail, a build from three months out, and a surge in the final four weeks. Two independent datasets show it (table below).
• The 41-Day Pacing Check: six weeks out, a paid conference should hold about half its final registrations. Projected finish = registrations at six weeks out × 2.
• Who registers when: Maritz found 75% of repeat attendees register early, while first-timers are almost twice as likely to register late (47% against 25%).
• Lever ranked first: outbound calls to past attendees, months out, because they are the early part of the curve and the cheapest seats to fill.
• Turn-up: PheedLoop found late registrants attend about as reliably as early ones at the same event (a median gap of 0.6 percentage points).

When do people register for conferences? The curve by weeks out

Two published datasets give the shape. They measure different things on different denominators, so they are shown side by side, not merged. Maritz’s Registration Insights Report covers 360,000+ attendee records from three years of 30 trade shows and charts 2023 pacing. PheedLoop’s Event Data Lab Report #09 (September 2026) covers 216,282 registrations across 467 events of all kinds, free and paid.

The two totals agree closely, but PheedLoop’s pooled figure is pulled late by free events: it reports 69% of free-event registrations arriving inside 30 days against 38% at paid events, and a median lead time of 16 days for free events against 41 for paid. For a paid conference, the curve that matters is PheedLoop’s paid-event median: half of registrations arrive inside about six weeks.

Are you on pace? The 41-Day Pacing Check

Because the median paid-event registration arrives 41 days out, a paid conference six weeks (42 days) from its date should hold roughly half of the registrations it will finish with. Double what you have and you have a rough projection. It is a planning rule built on one platform’s median, not a forecast for your event; your own prior-year curve beats it.

Worked example, with assumptions labelled: a paid conference targets 400 delegates and holds 140 registrations six weeks out. Projected finish: 140 × 2 = 280. Gap: 120. Last year’s attendees who have not yet re-registered: 600 (assumption). If 50% are reached by phone (assumption) and 15%, 25% or 35% of those register (assumption bands), the past-attendee list closes 45, 75 or 105 of the 120. Six weeks out, a paid conference at 35% of its target is not on track for a late surge to rescue it; the late surge is already in the doubling.

Which lever moves each phase of the registration curve?

Each phase is driven by a different buyer, so it needs a different lever. The ranking below is our working order for paid conferences; the registration shares are PheedLoop’s pooled bands and Maritz’s findings, the levers and their order are our judgement.

The price step is Maritz’s suggestion, not ours: it recommends a less generous early-bird rate, or keeping the rate flat until four weeks before the event and then raising it sharply. On the final-week row, Maritz found 62% of attendees within driving distance register late against 39% of those who fly.

Why calling past attendees comes first

Past attendees are the early part of the curve. Maritz’s report says 75% of repeat attendees register early and that early registrants are more likely to be “rinse and repeat” attendees who come back year after year. A conference that has not re-booked them by three months out has moved its most reliable seats into the most crowded weeks of the calendar.

Phone beats email for this list because the question is personal (“are you coming back, and who from your team?”) and the answer often adds colleagues. Treat it as a database reactivation campaign: segment by last attendance year, call the most recent first, record a reason for every no. For reference, LeadsNow’s own Colliers-era reactivation work averaged 4.4% with an 8.9% peak, measured as dormant CRM leads booked into qualified discovery calls; that is our record on a different kind of list, with no window or sample published, not an events benchmark. A list of last year’s delegates should do better than a dormant CRM, and the 15–35% bands above assume it does.

Do late registrants actually turn up?

Pooled across 467 events, PheedLoop found no-show rates rise from 18.4% for people who registered six or more months out to 42.4% for same-week registrants. Held within the same event, the effect almost disappears: a median attendance gap of 0.6 percentage points, and late registrants attended more reliably at 44% of events. The pooled gradient comes from free events, which register late and attend poorly whenever people sign up. For a paid conference, a same-week registration is about as likely to turn up as one from three months earlier, so a late surge is real attendance, not padding.

What the final six weeks cost to run in-house

The worked example’s past-attendee calls are 600 records at about 10 minutes each including retries (assumption): about 100 hours, best spent before the final six weeks. The final four weeks then need same-hour replies to first-timer enquiries, which is a coverage problem: evenings and weekends, when the work is small and the waiting is long. Our guide to selling high-ticket event tickets sizes that coverage for a 60-seat event, and the speed-to-lead conversion guide covers the reply itself.

LeadsNow’s AI agents run both jobs (past-attendee calling and instant enquiry follow-up) and book qualified buyers in with your team; agency options for event organisers are compared in our ranked lists for Australia, the US and the UK.

Frequently asked questions

How do I increase attendance at my event?

Fill the early part of the curve with past attendees by phone, announce speakers in the middle months, and answer every first-timer enquiry within the hour in the final four weeks, when Maritz found 45% of trade-show attendees registered.

When do most people register for a conference?

Late. PheedLoop’s Event Data Lab puts the median registration at 35 days before the event across 467 events, and at 41 days for paid events. Maritz found 22% of trade-show attendees registered in the final week or on site.

How many registrations should I have six weeks before a conference?

For a paid conference, roughly half your final number, because the median paid-event registration arrives 41 days out on PheedLoop’s data. Your own prior-year curve is a better guide if you have one.

Should I keep early-bird pricing?

Maritz’s Registration Insights Report suggests rethinking it, because time-based discounts may go to repeat attendees who would register anyway. Its alternatives include targeted discounts for first-timers or students, or a flat rate until four weeks out.

Are late registrants more likely to be no-shows?

Not at the same event. PheedLoop found a median within-event attendance gap of 0.6 percentage points between early and late registrants. The pooled gap comes from free events, which register late and attend poorly regardless of timing.

What is a normal no-show rate for a paid conference?

On PheedLoop’s pooled data for paid events, attendance was 72.8% for same-week registrants, 67.9% for those who registered two to four weeks out and 81.6% for those who registered six or more months out, so roughly one paid registrant in five to one in three does not check in, depending on lead time. Free events attend far worse at every lead time.