How many carbs per hour for Life Time Chicago Half Marathon?

At a typical finish of 2 h, the research range is 60 to 90 g an hour, as glucose and fructose, set by how trained your gut is. Enter your own finish time above for your number.

What is the weather like at Life Time Chicago Half Marathon?

Temperatures run from about 16 to 23 °C (61 to 73 °F): Average daily low and high in Chicago in September (Weather Spark). Heat raises your sweat rate, so do a sweat test in similar weather.

Where are the aid stations at Life Time Chicago Half Marathon?

The organizer lists 10 aid stations; the table on this page has each one by km. Check the athlete guide in race week, as positions can change.

Half marathon

Life Time Chicago Half Marathon fuel plan: carbs, fluid and sodium per hour.

September 26, 2027, Chicago, United States. Set your finish time and the plan follows.

Distance: 21.098 km
Climbing: Not published
Typical temperature: 16 to 23 °C · 61 to 73 °F
Aid stations: 10

Your plan

Half marathon · 2 h

Carbs an hour

75g

The research range for this race is 60 to 90 g; your gut training sets where you start. Above 60 g, use glucose and fructose, about 2:1.

Jeukendrup 2014 ACSM 2016 +3 more

Fluid an hour

To thirst

Without a sweat rate the research says drink to thirst. Do the sweat test to get a range.

NATA 2017 ACSM 2007

Sodium an hour

300 to 1,000mg

Sweat sodium varies a lot between people. A sweat sodium test gives you your own number.

Baker 2017 NATA 2017 +1 more

About 150 g of carbs over the race. That is a 25 g gel every 20 minutes, or the same carbs from drink and chews.

Rehearse it in training first: the gut adapts in 2 to 4 weeks. Costa 2017

Hand it to your AI

Your AI can check these numbers against your training and adjust them. The prompt has your results filled in.

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I'm racing a Half marathon and expect to finish in 2 h. I haven't measured my sweat rate. Conditions look mild, and my gut is in some training for fueling. A race fuel calculator built on the research (Jeukendrup 2014, the ACSM 2016 position stand) gave me: 75 g carbs an hour (glucose and fructose, about 2:1), about 150 g in total; fluid: drink to thirst, no sweat rate yet; 300 to 1,000 mg sodium an hour. Check this against my training and how my gut has handled fueling, then build my race day plan: what to take and when, with real products I can buy.

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Gemini, Grok Bot, Dots, Muse and Cue: copy the prompt and paste it in.

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With Memory.fit, your AI would already know your sweat rate.

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The course

What to know about Life Time Chicago Half Marathon.

The out-and-back course starts at E. Hayes Dr. in Jackson Park, runs north on Lake Shore Drive with views of Lake Michigan and the skyline, and turns just north of the I-55 overpass at about mile 6.5. It returns south past Kenwood and Hyde Park and finishes at the Statue of the Republic, with a 7:15 AM start.

Km	Leg	What's there
2	run	Aid
3.6	run	Aid
5.6	run	Aid
8	run	Aid
9.7	run	Gels
11.7	run	Gels
14.1	run	Aid
16.5	run	Aid
17.7	run	Aid
19.7	run	Aid

Race details checked November 9, 2026 from chicagohalfmarathon.com, chicagohalfmarathon.com, chicagohalfmarathon.com, chicagohalfmarathon.com, weatherspark.com. Courses and aid stations change: check the official page in race week.

Train for it

Train for Life Time Chicago Half Marathon with your AI.

With Memory.fit, your AI reads your real training, sleep and fuel, plans your weeks toward race day and shows the plan in the app.

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Questions

Life Time Chicago Half Marathon: questions.

At a typical finish of 2 h, the research range is 60 to 90 g an hour, as glucose and fructose, set by how trained your gut is. Enter your own finish time above for your number.
Temperatures run from about 16 to 23 °C (61 to 73 °F): Average daily low and high in Chicago in September (Weather Spark). Heat raises your sweat rate, so do a sweat test in similar weather.
The organizer lists 10 aid stations; the table on this page has each one by km. Check the athlete guide in race week, as positions can change.

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Not medical advice. Memory.fit is not affiliated with Life Time Chicago Half Marathon or its organizer.

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