Brain Up 5K Run is a running race on September 19, 2026 in Chicago, IL.
5k run
Live forecast from the U.S. National Weather Service.
Race day
Saturday, 9/19
High
71°
Low
65°
Conditions
Showers and thunderstorms
Chance of Rain
96%
Wind
10 to 15 mph
Population
2,707,648
as of 2023
City Elevation
594 ft
Nearest Airport
MDW
Chicago Midway International Airport · 6 mi
Time Zone
Central Time
From Endurance Grid
A big city race. Expect multiple lodging options and plenty to do the day before.
Every finish line starts with a single decision. Claim your spot at Brain Up 5K Run, put it on the calendar, and turn “someday” into a start date.
1
Day to train
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Endurance Grid is here to help you understand the sport, decide if it’s the right fit, and learn how to prepare. For course distances, logistics, and race-day specifics, always defer to the race organizer’s event page.
With running, there's a distance for every fitness level, a community at every start line, and nothing beats the feeling of crossing a finish line you trained for.
Running is an endurance sport that rewards consistency, and showing up every week compounds in ways that will surprise you.
From 5K to marathon, running races are an accessible entry point into endurance sport. There's a distance for every fitness level and a community at every start line.
Brain Up 5K Run
Sep 19, 2026