Boston 2027 Qualifier Selection: New Lottery

Published July 23, 2026 · Estimates, updated each registration cycle

Short answer: for the 2027 Boston Marathon, missing the cutoff is no longer a flat no. On July 22, 2026 the Boston Athletic Association announced a new Boston Qualifier Selection: roughly 1,000 runners who beat the standard but fell short of the cutoff will be pulled in at random. It is a second chance, not a change to the cutoff itself, and it is worth understanding before Registration Week.

What the BAA announced

Qualifier Registration for the 131st Boston Marathon runs five days, from September 14 through 5:00 p.m. ET on September 18, 2026. The field is capped at 30,000 entrants, and the BAA has said plainly that not everyone who qualifies will be accepted. That part is familiar: applicants are ranked by how far under their standard they finished, and the field fills from the fastest buffers down until it is full. Whatever buffer that process stops at becomes the year's cutoff.

What is new is what happens to the runners just below that line. Instead of every one of them being rejected, about 1,000 will be selected at random and offered entry. The BAA framed it as an element of hope for the athletes who qualified honestly but were squeezed out by an oversubscribed field.

Who is eligible, and how the odds work

Eligibility is automatic. If you apply with a valid qualifying time that is not fast enough to clear the cutoff for your age group and gender, you are placed in the Boston Qualifier Selection pool without doing anything extra. There is no separate form and no separate fee to opt in.

The catch is that your chance of being drawn depends entirely on the size of that pool, which nobody knows until the September window closes. The more qualifiers who miss the cutoff, the more people share those 1,000 spots. In a year with a deep field and a hard cutoff, the odds are long. In a softer year, they are better. It is a genuine lottery, so treat any single estimate of your personal odds as a guess.

Why your buffer still matters more

This is the part runners get wrong. The selection does not touch the cutoff, and it does not reward a bigger buffer inside the pool; once you are below the line, everyone in the pool has the same random shot. The reliable way into Boston is still to finish far enough under your standard to clear the cutoff outright. The 2026 race cut at 4:34 under the standard, and our central estimate for 2027 is about 5:15, which is an estimate and not a BAA figure. If your buffer is close to that number, the selection is a nice insurance policy, not a plan. See why a BQ does not guarantee entry and how much buffer 2027 is likely to need.

So the order of operations has not really changed. Get the biggest buffer you honestly can before September, verify your time early, and treat the lottery as the free extra ticket it is. If you already fell short in a past year, the old advice still holds too: requalify with a bigger buffer or age up.

What to do now

Run your finish time and age through the predictor to see your buffer, your rough odds of clearing the cutoff, and whether that buffer would have been accepted in each of the last thirteen cycles. If it lands you safely above the estimated cutoff, the selection is irrelevant to you. If it lands you just below, you now have two paths instead of one: a faster fall race, or the luck of the draw. Aim for the first and be grateful for the second.