OMV Petrom Bucharest Half Marathon fuel plan: carbs, fluid and sodium per hour.

May 9, 2027, Bucharest, Romania. Set your finish time and the plan follows.

Distance
21.098 km
Climbing
Not published
Typical temperature
11 to 23 °C · 52 to 73 °F
Aid stations
4

Your numbers

Sport
h:mm, like 5:30
kg
Keeps fluid loss under 2%. Never shared.
ml/h
Don't know it? Work it out
mg/l
From a sweat sodium test. Leave it empty if you haven't done one.
Conditions
Gut training
How used your gut is to taking carbs while you train.

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 2014ACSM 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 2017ACSM 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 2017NATA 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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With Memory.fit, your AI would already know your sweat rate.

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The course

What to know about OMV Petrom Bucharest Half Marathon.

The AIMS and World Athletics certified, fully asphalted course is marked every km, with a 09:00 start and a 3 hour time limit. Starts are in sectors assigned by bib number.

KmLegWhat's there
5runAid
10runAid
15runAid
20runAid

Race details checked November 9, 2026 from bucuresti21km.ro, bucuresti21km.ro, weatherspark.com. Courses and aid stations change: check the official page in race week.

Train for it

Train for OMV Petrom Bucharest 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

OMV Petrom Bucharest 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 11 to 23 °C (52 to 73 °F): Average daily low and high in Bucharest in May (Weather Spark). Heat raises your sweat rate, so do a sweat test in similar weather.

  • The organizer lists 4 aid stations; the table on this page has each one by km. Check the athlete guide in race week, as positions can change.

More races

Fuel plans for races like this one.

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Not medical advice. Memory.fit is not affiliated with OMV Petrom Bucharest Half Marathon or its organizer.

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