Dublin Marathon 2026 fueling guide: aid stations, gels, and a plan for every finish time

Dublin is a friendly marathon with a sting in the tail. The start runs downhill out of the city centre, the crowds in the Liberties and Phoenix Park lift the pace, and then the hill around 35 km arrives when most runners have stopped thinking about food. A good plan makes the early decisions boring, so that carbohydrate and attention are still there for the last 10 km to the Pepper Canister Church.

This guide works for every runner in the field. A 2:55 racer in wave 1 and a six-hour walker in wave 4 share the same stations but reach them at very different times. So the guide starts with what the organizer has confirmed for 2026, adds last year’s station list where the 2026 version is not out yet, shows when you will reach each station at your pace, and then gives three plans to choose from. Check the final instructions again in race week; station details can change.

Dublin Marathon 2026: the confirmed race facts

One detail catches people out: race day is the last Sunday of October, so Irish clocks go back one hour at 2 a.m. on race morning. Phones change on their own, but a hotel clock or an old sports watch may not. Set your breakfast alarm against the new time, and write every fuel time in your plan against your own wave. “Eat at 6:00” means nothing until you know whether you start at 8:45 or 9:45.

What is on the Dublin Marathon course

The 2026 FAQ confirms the products but not yet the exact miles. The table below uses last year’s final instructions, which are the best guide until the 2026 version comes out in race week.

Last year’s instructions list the feed station near mile 21 and the Lucozade and gel point at mile 22, so expect them in the same stretch. If your plan needs a gel every 25 to 35 minutes, you will carry most of them. The official pages do not describe personal drink tables for the general field, so do not build the race around a friend with a bottle on one corner.

The bottled water is Dublin’s quiet advantage. A 250 ml bottle travels with you, so you can take a gel two minutes after the station instead of trying to time it with a cup. Lucozade Sport comes in cups, and a cup taken at pace is rarely more than a few mouthfuls. In long runs, practise with cups and count what you actually swallow, so your race maths is based on behaviour rather than hope.

When you will reach each station at your pace

The table shows elapsed time at the key stations for an even pace, using last year’s miles. A 3:00 runner reaches the first course gel before two hours, when three carried gels are already gone. A 6:00 runner reaches it after three and a half hours, which is late enough that it should be a top-up, not a rescue.

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 carrying enough. Ninety grams per hour for three hours is 270 g. Two course gels give you some of that, and the rest has to come from your pockets: six or seven gels, or four gels plus a 500 ml soft flask of a drink mix you mixed yourself. Nobody should try that number for the first time in Dublin. Build it over eight to ten weeks of long runs, starting at 60 g and adding 10 g every second week while the stomach stays quiet. Take the first gel about 20 minutes in, before you feel anything, take a bottle at mile 7 and carry it, and plan the last gel for mile 22 so the hill at 35 km is run on fuel already in.

Steady marathon: aim for 60 to 75 g per hour and think in grams, not gel count. A rehearsed Lucozade cup at miles 9.5, 13, and 19 adds a small amount each if you drink a full cup, and each course gel is one fewer gel to carry. For a four-hour race that still leaves five or six 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, and it shows quickly if the plan leans too hard on cups.

Long day: five, six, or seven hours on the course changes the maths. Forty-five grams per hour over six hours is 270 g, the same total as the three-hour racer at 90 g. Your limits are stomach comfort and total fluid, not absorption. Small, frequent doses work better than big ones: half a gel every 15 to 20 minutes, a chew when a gel feels like too much, a few sips of Lucozade where you choose. Walking ten steps through a station is not a failure, it is how you drink a full cup instead of wearing it. Keep the last carbohydrate at mile 22 or 24 so the final miles are not run on empty.

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. Lucozade Sport adds some. Salty sweaters on a mild, humid day can add a salt product they have tested, roughly 300 to 600 mg per hour, rather than guessing.
• Course gel: High5 is the course brand. Buy a few, test them in a long run, and check the label so you know the grams per gel before race day.
• Wrappers: the organizer asks runners to bin gel wrappers carefully or carry them to the finish, because they are a slip hazard. Tear the top before the station so you can drink with the same hand.

Hydration: use the stations without chasing full replacement

Late October in Dublin averages a high near 12 to 13 °C (54 to 56 °F) and a low near 7 °C (44 °F), with about a two-in-five chance of a wet day. That is cool for most runners, but wind and drizzle can make wave 4 feel colder at the start and warmer under a rain jacket later. 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 ten separate decisions while tired.
• A 250 ml bottle can be carried for a mile or two; that is easier on the stomach than gulping in place.
• If you wear a pack, expect a search at the start zone and arrive early enough for it.
• Seek help for confusion, severe headache, repeated vomiting, or collapse, whatever the clock says.

Breakfast for an 8:45 to 9:45 start

A familiar carbohydrate-rich meal one to four hours before racing is the standard framework in the World Athletics consensus. Wave 1 eats at about 5:30 to 6:00 on the new clock time. Wave 4 can eat at 6:30 and add a small top-up at 8:45. The clock change helps here: you get an extra hour of sleep, so there is no excuse to eat in a rush.

• Three to four hours before your wave: a practised meal such as porridge, toast with jam, or a bagel, 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 if your wave is late and you know it 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 year runners were asked to be in their zone by 8:30 a.m.; plan travel and toilets so breakfast is finished before you leave.

Course tactics: where Dublin tempts you

• Miles 0 to 3, downhill from Leeson Street through St Stephen’s Green and the Liberties: the fastest and most crowded stretch. Take the first gel at about 20 to 25 minutes anyway, with the bottle from mile 3.
• Phoenix Park from about 6 km: long, open roads and a big crowd. Take the mile 7 bottle, carry it, and use it for your second gel.
• Miles 9.5 to 13, out toward Dolphin’s Barn and Crumlin Road: the rhythm section. This is where steady runners bank two rehearsed Lucozade pickups.
• Mile 16: the first course gel. Move to that side early and take one gel, not a handful, so runners behind you still get one.
• Around 35 km, the hill the organizer calls the Irish Heartbreak Hill: the mile 22 gel and Lucozade come right around here. Take your fuel before the climb, not on it.
• From 38 km at Nutley Lane to the finish: water only at mile 24. Your last carbohydrate should already be in.

The long-run rehearsal that makes the plan real

Use at least two long runs as full simulations. Start at your wave time, eat the same breakfast, wear the same belt or vest, 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 one hill late in the run while taking a gel, because that is exactly what mile 22 asks of you.

The second rehearsal is where you simplify. If seven packets are awkward, use a soft flask. If Lucozade plus a gel feels too sweet, take the gel with water and skip the cup. If a 25-minute alert creates stress, anchor fuel to the bottle stations and the two gel points and fill the gaps from your pocket. The best plan is the one you can follow on the hill at 35 km, not the one that looks best in a spreadsheet.

Race-week Dublin checklist

• Read the 2026 final instructions as soon as they are published and confirm the gel and Lucozade miles.
• Confirm your wave and work out breakfast and top-up times backward from it, on the new clock time.
• Buy and test the High5 gel if it is part of your plan.
• Lay out every carried item, add one backup gel, and write grams and timing on one card.
• Check the forecast 48 hours out for wind and rain; adjust fluid and clothing, not the whole fueling plan.
• Do not buy an unfamiliar gel at the Expo because the flavour sounds better.

Frequently asked questions

Sources and update notes

1. 1Irish Life Dublin Marathon: Frequently Asked QuestionsIrish Life Dublin MarathonAccessed October 2, 2026; 2026 date, wave times, start and finish, seven-hour limit, Ishka water, Lucozade Sport, High5 gels, packs
2. 2Irish Life Dublin Marathon: Final Instructions (2025 edition)Irish Life Dublin MarathonLast edition’s feed station miles, bottled water stations, Lucozade and gel points; the 2026 version is not yet published
3. 3Irish Life Dublin Marathon: Course and Start/FinishIrish Life Dublin MarathonRoute landmarks, Phoenix Park, the hill at 35 km, finish at the Pepper Canister Church
4. 4Nutrition for Athletics: 2019 IAAF Consensus StatementWorld AthleticsCarbohydrate ranges, pre-race meal, and hydration guidance
5. 5A Step Towards Personalized Sports Nutrition: Carbohydrate Intake During ExerciseSports Medicine (Jeukendrup, 2014), PMID 24791914Multiple transportable carbohydrates and intakes above 60 g per hour
6. 6International Society of Sports Nutrition Position Stand: Caffeine and Exercise PerformanceJISSN (2021), PMID 333880793 to 6 mg per kg dosing guidance
7. 7Average Weather in October in DublinWeather SparkLate-October temperature and wet-day averages