The news desk
On October 7, 2026, Marathon Handbook released a Chicago Marathon mile-by-mile pace calculator that generates an interactive pacing plan based on every turn, bridge, and elevation change on the course. The tool is calibrated using thousands of results from the past four race editions and adjusts based on race-day weather. Currently there is only this one report on the event, with no follow-up developments or additional information from other sources.
Marathon Handbook released a mile-by-mile Chicago Marathon pace calculator that builds an interactive pace plan for every mile of the course by mapping every turn, bridge and elevation change. The tool is calibrated against thousands of performances from the last four races and adjusted for race-day weather.