Rotterdam Marathon 2027 fueling guide: aid stations, gels, and a plan for every finish time

Rotterdam is flat, fast, and loud. You cross the Erasmus Bridge twice, the crowds on the Coolsingel are famous, and the field is full of people chasing a personal best. That makes it easy to think only about pace. But Rotterdam also has a late start, a firm time limit, and only one gel point on the whole course. The runners who finish strong here decide before race day what they carry and when every gram goes in.

This guide is for every runner in the field. A 2:55 racer and a 5:15 first-timer pass the same stations at very different times and with different needs. The 2027 date is confirmed, but the detailed race information is still the last edition’s, so this guide labels it clearly. It shows when you will reach each station at your pace, how the cut-offs work, and three plans to choose from. Check the event info page again in race week.

Rotterdam Marathon 2027: the confirmed race facts

The time limit works in your favour if you start early. The clock for the cut-offs starts when the last runner crosses the line, not when your wave goes. Last edition the timetable said runners had to be back over the Erasmus Bridge toward the city centre by 2:15 p.m. If you plan to run near the limit, ask for a realistic finish time on your entry so you get the right wave, and plan your fuel so the second half does not slow you down.

What is on the Rotterdam Marathon course

Rotterdam gives you plenty to drink and one gel. The organizer is clear that AA Drink-Iso is diluted, at about 8 g of carbohydrate per 100 ml. A full 150 ml cup is roughly 12 g, and at race pace most people swallow about half. Over eight stations that might add 50 to 90 g in total, which is less than one hour of fuel for a steady runner. Count it, but do not build the plan on it. The organizer also asks runners to keep gel packets until a bin at the stations, so plan a pocket for empty wrappers.

When you will reach each station at your pace

The table shows elapsed time at each station for an even pace, using the last edition’s kilometres. The 6:00 column is left out because the time limit was 5 h 30 min. A 3:00 runner reaches the Upfront gel at about 2:25, when five or six carried gels are already gone. A 5:00 runner reaches halfway at about 2:30, inside the 2:45 cut-off, but there is not much room for a slow first half.

Pick your plan: three runner profiles

World Athletics’ consensus statement gives 30 to 60 g of carbohydrate per hour as the common marathon range and suggests trained runners try up to 90 g per hour for events over two and a half hours. Research on multiple transportable carbohydrates shows intakes above 60 g per hour only absorb well when the product mixes glucose and fructose and the gut has been trained for it. That gives three honest profiles rather than one number for everyone.

Racing it: your problem is volume. Ninety grams per hour for three hours is 270 g, and the course gives you little of it at your pace. That means eight or nine 30 g gels, or fewer gels plus a 500 ml soft flask of drink mix in a belt. Build the number over eight to ten weeks of long runs, starting at 60 g and adding 10 g every second week while your stomach stays quiet. Take the first gel about 20 minutes in, just before or after you cross the Erasmus Bridge, and the last one around 35 km.

Steady marathon: aim for 60 to 75 g per hour and think in grams, not packets. A 4:00 race at 65 g per hour is about 260 g. A few rehearsed cups of AA Drink-Iso might give 20 to 40 g of that, and the Upfront gel at 34 km saves one packet if you have trained with it. That still leaves seven or eight carried gels. Write the grams next to every item and total each hour. This catches the classic mistake of switching to a smaller gel than the one you trained with.

Long day: if you expect 4:45 to 5:25, the cut-offs matter as much as the fuel. Forty-five grams per hour over five hours is about 225 g. Your limits are stomach comfort and total fluid, not absorption. Small, frequent doses work best: half a gel every 15 to 20 minutes, a chew when a gel feels like too much, a piece of banana at 20 km, and a cup of AA Drink-Iso where you choose. Do not slow down so much at stations that you lose minutes before halfway. A steady walk through the station is enough to drink a full cup.

Caffeine, sodium, and the things runners forget

• Caffeine: the ISSN position stand supports 3 to 6 mg per kg taken about 60 minutes before exercise. For a 70 kg runner, 3 mg per kg is 210 mg. Use the low end, rehearse it, and count coffee, pre-race products, and caffeinated gels together.
• Sodium: plain water and most gels give you little. An isotonic drink adds some. Salty sweaters on a warm day can add a salt product they have tested, roughly 300 to 600 mg per hour.
• AA Drink-Iso Lemon: buy some and try it in long runs. Lemon is not to everyone’s taste, and you want to know before 5 km.
• Upfront gel: if you want to use the 34 km gel, buy the same product in advance, test it, and check the label so you know the grams.

Hydration for an April morning in Rotterdam

Around April 10 and 11, Rotterdam averages a daily high near 13 °C (55 °F) and a low near 4 °C (40 °F), with about a one-in-four chance of a wet day. The 10:00 start means the second half runs into the middle of the day, so a 5-hour runner finishes in the warmest hours. The organizer warns that first-time marathoners are more likely to overheat in the second half when it is warm. Fluid needs depend on body size, pace, weather, and your own sweat rate. World Athletics warns against drinking beyond sweat losses; finishing heavier than you started is a sign of overdrinking.

• Test your sweat rate in one cool and one mild long run before race week.
• Choose priority stations now instead of making eight separate decisions while tired.
• The sponge stations sit halfway between the drink stations; use them to cool, not to drink.
• Seek help for confusion, severe headache, repeated vomiting, or collapse, whatever the clock says.

Breakfast for a 10:00 start

A familiar carbohydrate-rich meal one to four hours before racing is the standard framework in the World Athletics consensus. A 10:00 start is later than most big marathons, which helps. You can sleep, eat a normal breakfast at about 6:30 to 7:00, and still have time to digest. The risk is the opposite one: a long gap between breakfast and the gun, especially if your wave goes at 10:28. Plan a small top-up for the wait.

• Three to three and a half hours before your wave: a practised meal such as bread or a bagel with jam, a banana, and a familiar drink, about 1 to 2 g of carbohydrate per kg.
• Sixty to ninety minutes before: a small low-fibre top-up such as a few biscuits or half a sports bar you know sits well.
• Ten to fifteen minutes before the gun: an optional gel, only if used successfully in training.
• Keep caffeine at the dose and timing you know; race morning is not the day to double it.
• Last edition the start area opened at 9:00; plan travel and toilets so you are not eating in the queue.

Course tactics: where Rotterdam tempts you

• The start on the Schiedamsedijk and straight over the Erasmus Bridge: crowded and exciting. Do not race the bridge. Take your first gel at about 20 minutes, with the 5 km cup.
• Kilometres 5 to 20 in the south of the city, past the Feijenoord Stadium and Ahoy: the rhythm section. Bank two or three carried gels here, each with a station cup.
• Kilometre 20: bananas. Racers skip them; long-day runners can take a small piece.
• Kilometre 25 and back over the Erasmus Bridge: tea at 25 km, then the bridge, which had a 2:15 p.m. cut-off last edition. Have your next gel ready before the climb onto the bridge.
• Kilometres 30 to 38, out to the Kralingse Plas: this is where pace fades. The Upfront gel at 34 km comes right here. Take a carried gel if it is not your brand.
• The last kilometres past the Cube Houses and the Markthal to the Coolsingel: your last carbohydrate should go in by about 37 km.

The long-run rehearsal that makes the plan real

Use at least two long runs as full race simulations. Start at 10:00, eat the same breakfast at the same time, wear the same belt, carry the same products, and fuel at the same clock times. One rehearsal proves the plan works. The second tests it under fatigue, at goal pace for racers and at the full expected time for the long-day group. Practise drinking from cups at pace, and count how many normal mouthfuls make 150 ml so your race maths is real.

The second rehearsal is where you simplify. If eight packets are awkward, use a soft flask of drink mix. If a 25-minute alert creates stress, anchor gels to the 5 km stations and add one carried gel between each pair. The best plan is the one you can still follow on the Kralingse Plas at 35 km, not the one that looks best in a spreadsheet.

Race-week Rotterdam checklist

• Read the event info page for 2027 and confirm the stations, the start times, and the time limit.
• Find your wave on your bib and in your dashboard, then work breakfast backward from it.
• Lay out every carried item, add one backup gel, and write grams and timing on one card.
• Bring a camel bag or a belt, not a backpack, if the start-area rules stay the same.
• Check the forecast 48 hours out and adjust fluid and sodium, not the whole plan.
• Do not buy an unfamiliar gel at the expo because the flavour sounds good.

Frequently asked questions

Sources and update notes

1. 1NN Marathon RotterdamNN Marathon Rotterdam2027 date: Saturday 10 and Sunday 11 April 2027, marathon on Sunday
2. 2NN Marathon Rotterdam: Event InfoNN Marathon RotterdamLast edition start waves, time limits and cut-offs, refreshment and sponge stations, AA Drink-Iso carbohydrate, start-area bag rule, toilets
3. 3NN Marathon Rotterdam: RegisterNN Marathon RotterdamRace on 11 April 2027; course highlights from the Erasmus Bridge to the Coolsingel
4. 4NN Marathon Rotterdam: CourseNN Marathon RotterdamCourse map
5. 5Nutrition for Athletics: 2019 IAAF Consensus StatementWorld AthleticsCarbohydrate ranges, pre-race meal, and hydration guidance
6. 6A Step Towards Personalized Sports Nutrition: Carbohydrate Intake During ExerciseSports Medicine (Jeukendrup, 2014), PMID 24791914Multiple transportable carbohydrates and intakes above 60 g per hour
7. 7International Society of Sports Nutrition Position Stand: Caffeine and Exercise PerformanceJISSN (2021), PMID 333880793 to 6 mg per kg dosing guidance
8. 8Rotterdam April Weather, Average TemperatureWeather SparkMid-April temperature and wet-day averages