Last month, I noticed that the Philly Marathon and Twin Cities Marathon had both sold out earlier than usual. That got me wondering how widespread of a phenomena this was, and last week I gathered the data on four more marathons: Colorado, Denver, Detroit, and Miami. As if to illustrate the point that races are … Read more
Feature image by Nils Huenerfuerst on Wikimedia Commons – CC BY 4.0. This summer, two popular marathons sold out far earlier than is typical: Philly and Twin Cities. In both cases, I saw someone ask – perplexed – if these races were really on pace to sell out. And days later, they were both full. … Read more
Feature photo by Ania Mendrek on Flickr – CC BY-ND 2.0. When I first attempted to predict the cutoff time for the 2025 Boston Marathon, I focused on calculating the difference in the number of qualifiers year-over-year. Although not all qualifiers will end up applying to Boston, I started with the assumption that there is … Read more
It’s July, and the Philadelphia Marathon is still months away. But if you’ve been on the fence about registering for the race, it’s too late. Philly is officially sold out. A couple weeks ago, I saw someone post online that the race was at 95% capacity. They had been thinking about registering, and didn’t realize … Read more
This week, the Boston Athletic Association dropped a bombshell of an announcement – that qualifying times from downhill marathons will be subject to an adjustment starting with the 2027 Boston Marathon. As the competition to get into Boston has become more intense, runners’ feelings about downhill marathons have become equally intense. Steep downhill races – … Read more
The dashboard below contains summaries of race reports from Reddit – specifically r/AdvancedRunning and r/Marathon_Training. It includes over 1,200 marathon race reports published since 2016. You can use the filters at the top to narrow down the list of race reports in the table on the left. Click on a specific race report in the … Read more
Feature Photo: By Whoisjohngalt – Own work, CC0, Link Last week, USATF announced the entry standard for the 2028 US Olympic Trials Marathon: 2:16 for men and 2:37 for women. The new men’s standard is two minutes lower than it was in 2024 (2:18). That was a minute faster than it was in 2016 and … Read more
Last week, I wrote up a summary and analysis of John Korir’s training for the 2025 Boston Marathon. He has a public Strava profile, so it’s all out there for someone with the patience to comb through it. One thing that I wasn’t able to see previously, though, was the details of his Tuesday workouts. … Read more
In November, I launched the Boston Marathon Cutoff Time Tracker to project the expected cutoff for the 2026 Boston Marathon. Since then, I’ve made regularly updates to incorporate additional race results as they become available. For those of you that are interested in making your own prediction and who are technically savvy, I’ve cleaned up … Read more
John Korir has had one hell of a year. He won the 2024 Chicago Marathon, and then he turned around and won the 2025 Boston Marathon. For someone who previously won LA in 2:09-2:12, ran Boston in 2:10, and ran Chicago in 2:05, it’s a big come up. From 2021-23, he was good. But in … Read more