swimming

Chicago River Swim

Date
September 20, 2026
Location
Chicago, Illinois
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About This Sport

From Endurance Grid's founder, Phil

This perspective is here to help you understand the sport, decide if it's the right fit, and know how to prepare. For course distances, logistics, and race-day specifics, always defer to the race organizer's event page.

Open water swimming events reward consistent pool work and the ability to navigate without a lane line — which is a different skill than it sounds. If you're comfortable in a pool, the transition to open water is manageable with some specific preparation.

Sighting — lifting your head to spot a buoy without losing your stroke rhythm — is the technique most newcomers underestimate. Practice it in training. A wetsuit can provide significant buoyancy in colder water, and most open water events in the Midwest will specify whether it's permitted or required.

What you need: Pool access for base fitness, open water practice before race day, and a wetsuit appropriate for the water temperature.

Phil Tarnowski is a NASM-certified personal trainer and the founder of Endurance Grid. He's created training plans and completed half marathons, sprint triathlons, and HYROX. Learn more about Endurance Grid's purpose to help endurance athletes everywhere here →

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Quick Answers

What is the Chicago River Swim?
Chicago River Swim is a swimming event held in Chicago, Illinois. It's open to all experience levels — whether you're racing for the first time or chasing a PR.
When and where is the Chicago River Swim?
Sunday, September 20, 2026 in Chicago, Illinois. Check the official event page for exact start times and wave schedules.
How do I register for the Chicago River Swim?
Registration is handled through RunSignup, the official platform used by most Midwest endurance events. You can review available distances, confirm pricing, and sign up at the official registration page.
What should I know before registering for the Chicago River Swim?
Review the available distances, confirm the course suits your current fitness level, and check the race organizer's event page for any gear requirements, cut-off times, or wave start details before completing your registration.

Chicago River Swim

Sep 20, 2026

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