Feature image by generalising on Flickr – CC BY SA 2.0 Earlier this month, the Chicago Marathon announced new qualifying times for the 2026 Chicago Marathon. This is the second year in a row that they’ve changed the qualifying standards. Just last year, they overhauled the qualifying standards they used for guaranteed entry. I previously … Read more
Last month, I posted a lengthy analysis of the Chicago Marathon results. Part of that analysis was whether runners managed a negative split or not. Subsequently, I’ve done some more thinking about this issue. After some discussions around the data, I came up with a different way to think about the problem. Instead of looking … Read more
A few weeks ago, I ran the Chicago Marathon. Over the course of the next week, I collected the results of the race from the Chicago Marathon website and analyzed the data. I published the full analysis on Medium, and I published a shorter version here. And I also packaged the data into an interactive … Read more
Last weekend was the the 2024 Chicago Marathon. Over 52,000 runners hit the streets of Chicago for the race. As I do after each World Marathon Major, I’ve collected the results and analyzed them to see if there are any interesting tidbits. I’ve published a detailed analysis in Runner’s Life, which you can find here. … Read more
Last Sunday, I ran the Chicago Marathon. It was the first of my Abbott World Marathon Majors. When I ran the Erie Marathon last year, I was hoping to qualify for Boston. My time there didn’t make the cutoff for Boston 2024, but it did get me in to Chicago as a consolation prize. In … Read more
And just like that, it’s all come to an end. This is the final week of my training for the Chicago Marathon, and by the end of this week I’ll be in the city getting ready for the race. Note: I’m publishing this after the race, because I didn’t have time to down this weekend … Read more
The Chicago Marathon has announced that it will be implementing new qualifying times for guaranteed entry, starting with the 2025 Chicago Marathon. As I began to dig into this data, I was curious about the history of these times. When did they start? Have they changed previously? I was a little surprised to find out … Read more