If general registration has already closed by the time you're reading this, you're not alone - this race has developed a habit of selling out well ahead of race day, and an official waitlist is the mechanism for the spots that open back up afterward. Here's how it actually works and what to realistically expect from it.

How the waitlist works

Once general registration sells out, the race opens an official entry waitlist for a defined window. Joining it doesn't guarantee a bib - it puts your name into a pool that's drawn from by lottery as spots become available, rather than granting entries on a first-come, first-served basis. Spots become available only when a currently registered runner drops out, defers to the following year, or otherwise cancels, so the number of openings depends entirely on how many people change their plans.

How selections happen

Selections are typically made in batches, starting about a week after the waitlist itself closes, and continue on a rolling basis as additional spots open up. If you're selected, you'll usually get an email notification with a short window, often just a couple of days, to complete your registration and pay the entry fee before the offer passes to the next person in line. That short window matters - if you're on the waitlist, keep an eye on your inbox, including spam, during the selection period so you don't miss your shot.

What actually improves your odds

There's no way to move up the waitlist through effort alone - it's a lottery, not a queue - but a few things are still worth doing. Join as soon as the waitlist opens rather than waiting. Make sure your contact information is accurate and that you're checking email regularly during the selection window. And have a backup plan ready: if the waitlist doesn't come through, a charity entry or a paid upgrade bundle, where one is available, can be a faster path to a bib than waiting on a cancellation.

Waitlist vs. other options

The official waitlist is free to join and costs nothing unless you're actually selected, which makes it worth doing even as a long shot. But it isn't your only option if a Miami bib matters to you and the odds feel too uncertain - guaranteed-entry routes exist through charity fundraising programs and, in some years, limited paid entry bundles for runners who want extras like priority corral placement. RaceRove's companion guide on what to do if the race is sold out walks through those alternatives in more detail.