Registration Opens for 131st Boston Marathon with New Selection Process Updates

If you've ever run with your eyes glued to the clock, knowing that one extra minute would keep you out of the world's oldest and most prestigious marathon, this news is for you. Starting September 14 and running through September 18 at 5 p.m. ET, the B.A.A. opened registration for the 131st Boston Marathon, which will take place on Monday, April 19, 2027. But what's truly disruptive isn't the date or the entry fee ($270): it's that, for the first time in its history, Boston will incorporate a random draw for runners who qualified but didn't meet the time standard. It's called Boston Qualifier Selection and will distribute approximately 1,000 spots among those runners who came up just short.

The Context

Boston is the only one of the six World Marathon Majors that requires a qualifying time to run it. It's not enough to pay the entry fee: you have to "earn" your spot by running an official marathon below the time set for your age and gender category. That requirement is, historically, part of the race's myth: crossing the finish line on Boylston Street is, for many, the definitive validation of years of serious training.

The problem is that, with the explosive growth of running and the general improvement in race times across the running population, more and more athletes qualify... but not everyone gets in. The B.A.A. uses an additional "cutoff time": if you beat your qualifying standard but the total field capacity is already full, you're left out anyway, even though you technically "qualified." In recent years, that cutoff margin has exceeded 6 minutes below the official required time, leaving thousands of qualified runners without a spot.

The Boston Qualifier Selection was created to give a second chance to that group: those who qualified in their category but didn't make it because of the cutoff now participate in a random draw for about 1,000 extra spots. It's a paradigm shift for a race that has always prided itself on being 100% merit-based, and it reflects a real tension: how to maintain the prestige of the standard without excluding runners who did everything right and still got left out due to volume of entries.

What the Science Says

This adjustment in the selection process also raises something that sports science has been documenting for years: the gap between performance and access doesn't always reflect real differences in physical capacity. We know, for example, that there are physiological differences between sexes in endurance performance—running economy, pace distribution, ability to sustain effort—which the B.A.A. already accounts for by setting different qualifying times by category (Besson et al., Sports Med, 2022).

Additionally, research on pacing variability in marathons (Cuk et al., Medicina, 2024) shows that maintaining a consistent pace and avoiding the dreaded "positive split"—that slowdown in the final kilometers—is one of the most determining factors for lowering your personal best and, eventually, your qualifying time. In other words: for many runners, the difference between qualifying comfortably or landing in the "gray zone" of the cutoff isn't just physical training, but race strategy. Poor pacing execution could cost you those 3-5 minutes that today separate a qualifier from someone who gets left out by the cutoff.

What It Means for You

If you're in "I want to run Boston" mode, this development changes the strategy a bit:

1. Don't ease up on the goal. Qualifying by a slim margin no longer guarantees you anything more than entry into the draw. Your real target is still to beat your time standard with a buffer, not at the limit.

2. Make pacing a trainable skill. The evidence is clear: running even-paced, without early surges that cost you later, is more efficient than starting fast and suffering through the final third (Azevedo et al., Eur J Appl Physiol, 2021).

3. Add strength to your plan. A recent study showed that strength training improves "durability" of running economy—your ability to maintain efficiency even when fatigued, something crucial in the final 10K of a demanding marathon (Zanini et al., Med Sci Sports Exerc, 2025).

4. If you ended up in the lottery zone, don't take it as a failure. You qualified. The rest now depends on luck, not your ability. Keep training with an eye toward lowering your time next time, without depending on chance.

References

• Besson T, Macchi R, Rossi J. "Sex Differences in Endurance Running." Sports Med 2022. https://pubmed.ncbi.nlm.nih.gov/35122632/
• Cuk I, Markovic S, Weiss K. "Running Variability in Marathon-Evaluation of the Pacing Variables." Medicina (Kaunas) 2024. https://pubmed.ncbi.nlm.nih.gov/38399506/
• Azevedo RA, Silva-Cavalcante MD, Lima-Silva AE. "Fatigue development and perceived response during self-paced endurance exercise: state-of-the-art review." Eur J Appl Physiol 2021. https://pubmed.ncbi.nlm.nih.gov/33389141/
• Zanini M, Folland JP, Wu H. "Strength Training Improves Running Economy Durability and Fatigued High-Intensity Performance in Well-Trained Male Runners: A Randomized Control Trial." Med Sci Sports Exerc 2025. https://pubm