Vienna City Marathon fuel plan: carbs, fluid and sodium per hour.
April 18, 2027, Vienna, Austria. Set your finish time and the plan follows.
- Distance
- 42.195 km
- Climbing
- Not published
- Typical temperature
- 6 to 16 °C · 43 to 61 °F
- Aid stations
- 25
Your plan
Marathon · 4 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 2014Viribay 2020+4 moreFluid an hour
To thirst
Without a sweat rate the research says drink to thirst. Do the sweat test to get a range.
NATA 2017ACSM 2007Sodium an hour
300 to 1,000mg
Sweat sodium varies a lot between people. A sweat sodium test gives you your own number.
Baker 2017NATA 2017+1 moreAbout 300 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.
See the prompt
I'm racing a Marathon and expect to finish in 4 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 300 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.
Gemini, Grok Bot, Dots, Muse and Cue: copy the prompt and paste it in.
With Memory.fit, your AI would already know your sweat rate.
On Android now: get it on Google Play. One email when the iPhone app is on the App Store.
The course
What to know about Vienna City Marathon.
A varied city course made for fast times, with only 44 m between its lowest and highest points. The finish is in the heart of the city.
On course: Powerade, ESN Hydro Energy Gel and Coca-Cola. Train with what the course hands out, or carry your own.
| Km | Leg | What's there |
|---|---|---|
| 3.9 | run | water |
| 4.8 | run | water, Powerade |
| 7.4 | run | water |
| 9.5 | run | water, Powerade |
| 10.5 | run | water |
| 11.7 | run | water |
| 12.5 | run | water |
| 13.1 | run | water |
| 15 | run | water, Powerade, bananas |
| 17.8 | run | water |
| 19.6 | run | water, Powerade, bananas |
| 21.8 | run | water |
| 24.8 | run | water, Powerade, bananas |
| 26.1 | run | water |
| 27.2 | run | water |
| 28.5 | run | water |
| 29.4 | run | water, Powerade, bananas |
| 31.4 | run | water |
| 33.5 | run | water, ESN Hydro Energy Gel |
| 34 | run | water, Powerade, bananas, Coca-Cola |
| 37.7 | run | water |
| 38.6 | run | water |
| 39.6 | run | water, Powerade, bananas, Coca-Cola |
| 40.8 | run | water |
| 42.195 | run | finish: Römerquelle water, Powerade, bananas |
Race details checked October 17, 2026 from vienna-marathon.com, vienna-marathon.com, weatherspark.com, weatherspark.com. Courses and aid stations change: check the official page in race week.
Train for it
Train for Vienna City 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.
Questions
Vienna City Marathon: questions.
At a typical finish of 4 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.
Average daily low and high in Vienna in April (Weather Spark). run from about 6 to 16 °C (43 to 61 °F). Heat raises your sweat rate, so do a sweat test in similar weather.
The organizer lists 25 aid stations; the table on this page has each one by km. Check the athlete guide in race week, as positions can change.
Not medical advice. Memory.fit is not affiliated with Vienna City Marathon or its organizer.
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