The Boston Cutoff, Explained for Normal Runners

Running the published Boston qualifying time does not get you into the race. The Boston Athletic Association only guarantees entry to applicants who beat their age-group standard by a buffer, and that buffer moves every year depending on how many people qualify. For the 130th Boston Marathon in 2026, the cutoff landed at 4 minutes 34 seconds under standard, and 8,887 runners who had legitimately qualified were still turned away.

Why does Boston have a cutoff at all?

Boston is capacity-limited to about 30,000 qualifying-standard bibs, but qualifying times alone routinely produce a bigger pool than that. When more people qualify than there is room for, the BAA ranks every applicant by how far under their standard they ran and accepts the fastest first. The slowest accepted time becomes the cutoff, announced after the five-day registration window closes. Meeting the standard only earns the right to be ranked. It does not guarantee a bib.

How big has the cutoff been recently?

The buffer has stayed in a fairly narrow band the last three cycles, even as the applicant pool shifted:

• 2026 race: 33,249 qualifiers applied, 24,362 accepted, cutoff 4 minutes 34 seconds under standard.
• 2025 race: 36,393 qualifiers applied, 24,069 accepted, cutoff 6 minutes 51 seconds under, the toughest of the three.
• 2024 race: 33,058 qualifiers applied, 22,019 accepted, cutoff 5 minutes 29 seconds under.

The 2026 cutoff eased slightly even though the BAA had tightened every age-group standard by five minutes that cycle, a sign the tougher bars thinned the pool only a little. Full year-by-year figures are on the Boston 2026 qualifier results page.

What happens if you miss the cutoff?

Until the 2027 race, missing the cutoff meant missing Boston entirely unless you raised money through an official charity or bought a tour operator package. That changed with Boston Qualifier Selection, a new random draw for about 1,000 additional spots reserved for runners who beat their standard but fell short of the cutoff. No separate application is needed, and the draw does not weight by how close a runner came. The full lottery breakdown covers how entries are counted and when the draw runs.

How do you know if your time is safe?

Since the cutoff moves every year and is only known after registration closes, there is no way to guarantee a buffer in advance. The BQ Buffer Calculator checks a qualifying time against the last three years of published cutoffs and flags whether it clears them, sits in the risk zone, or falls short entirely, the same math the BAA uses, run against your own numbers before you register.

Sources: BAA: 130th Boston Marathon qualifiers, BAA: Boston Marathon qualifying and registration