What Time Do You Need for Boston 2027?

Published September 8, 2026 · Estimates, updated each registration cycle

Short answer: to be reasonably confident of an entry for the 2027 Boston Marathon, plan on beating your qualifying standard by about 5:15, not simply meeting it. For an open man that turns a standard of 2:55:00 into a target of 2:49:45, and for an open woman it turns 3:25:00 into 3:19:45. The table below does the same subtraction for every age group.

Why the standard is not the target

The Boston Athletic Association publishes one number per age group and gender, and it is easy to read that number as the finish line. It is not. In an oversubscribed year the BAA collects every application, ranks the applicants by how far under their own standard they finished, and fills the field from the largest buffers down. Whatever margin the field runs out at becomes that year's cutoff, and everyone slower than it is turned away despite having run a legitimate qualifying time. That has happened in eleven of the last thirteen cycles. The practical target is therefore the standard minus an expected cutoff, which is what the buffer guide calls planning for the real bar instead of the published one.

Target finish times for 2027, by age group

Standards are the current published ones, unchanged from 2026. Target times subtract the working estimate of a 5:15 cutoff. Age is your age on race day, April 19, 2027, not your age when you run the qualifier.

The women's column also applies to non-binary athletes, per the BAA's own guidance.

Three tiers, not one line

Treating the target as a hard pass or fail overstates how precise any of this is. The honest version has three bands. A buffer near 3:30 has cleared some recent years and failed others, so it is a genuine gamble. A buffer around 5:15 sits close to even odds against the 2027 estimate. A buffer of 7:00 or more would have been accepted in every cycle since 2014 except the pandemic-shrunken 2021 race, which is as close to safe as this event gets. The estimate itself carries real uncertainty, and the BAA does not announce the actual number until the applications are in, as the announcement timeline explains.

If you are already inside the window

For 2027 the qualifying window is closed in practice: applications are accepted from September 14 through 5:00 p.m. ET on September 18, 2026, so the time you have is the time you will submit. Use these targets to read your own position rather than to change it. If you are above the target line, apply with confidence. If you are below it, apply anyway, because nothing is charged unless you are accepted and roughly 1,000 qualifiers under the cutoff will now be pulled in at random. If you are missing the standard entirely, these targets become the plan for the 2028 cycle, and the fall marathon calendar is the natural place to start.

To see where your exact time lands rather than the nearest age band, put it into the cutoff predictor. It reports your buffer, your estimated odds for 2027, and whether that buffer would have been accepted in each of the last thirteen Boston fields. The full standards table, with the qualifying window rules, sits in the 2027 qualifying times guide.