There are plenty of things to worry about before running the Dublin Marathon.
The weather. The hills. Your finishing time. The possibility of hitting the wall somewhere around mile 20 and spending the final six miles questioning every decision you've made since childhood.
But there's another concern that rarely features in marathon training plans.
What happens when you desperately need the toilet?
You've spent four months preparing your legs to run 26.2 miles. You've perfected your pacing, practised your fuelling and bought running shoes that cost more than your first car.
Yet none of that matters when your stomach decides it has an urgent appointment with a portable toilet in Phoenix Park.
Fortunately, the organisers of the 2026 Irish Life Dublin Marathon have made provisions for precisely this eventuality.
And because knowing where the nearest toilet is could be the difference between a personal best and a deeply regrettable personal incident, we've put together a guide.
Where Are the Toilets Before the Dublin Marathon Starts?
Let's begin with the most important part of your morning.
Not the warm up. Not the stretching. Not the inspirational speech you've prepared for yourself.
The toilet.
According to the official 2026 start area map, toilet facilities are positioned around Merrion Square, Fitzwilliam Square and the surrounding streets leading towards the starting waves.
The organisers confirm that toilets will be available within each wave zone.
For runners entering via Merrion Square, facilities are marked around Merrion Square North and West.
Further facilities are indicated around Fitzwilliam Square and towards the areas used by the blue and purple waves.
The organisers are asking runners to arrive at their allocated starting wave no later than 8am, allowing sufficient time to get into position before the race begins.
And here's the important bit.
Expect queues.
There are thousands of people preparing to run a marathon, many of whom have consumed an enormous breakfast, two coffees and enough water to fill a small aquarium.
Every single one of them has decided that now would be an excellent time to visit the toilet.
If you've ever queued for the toilets at a music festival, imagine the same experience, except everyone is wearing expensive trainers and discussing carbohydrate intake.
Our advice? Go early.
And if you think you might need to go again, leave yourself time.
Your bladder doesn't care that you've trained for a four hour marathon.
Where Are the Toilets Along the Dublin Marathon Route?
Thankfully, the organisers haven't simply provided toilets at the start and wished everyone the best of luck.
The official 2026 course map identifies toilet facilities at several locations throughout the 26.2 mile route.
These include facilities around:
The early miles: Near Aughrim Street around mile three, in Phoenix Park around mile five, and near Castleknock around mile seven.
Approaching halfway: Around Chapelizod near mile 10, along the Inchicore section between miles 11 and 12, and near Brickfields Park around mile 13.
The second half: Around Terenure, near Orwell Park and Dartry, along Fosters Avenue and towards the final miles around Nutley Lane.
These are approximate locations based on the published course map. Runners should consult the official map for the marked facilities and follow directions from race marshals on the day.
The important thing is that facilities are provided throughout the race.
So if you suddenly experience an intestinal emergency somewhere along Chesterfield Avenue, you don't necessarily have to start examining the surrounding trees for potential hiding places.
Which brings us to our next point.
Phoenix Park Is Not One Giant Toilet
We appreciate that Phoenix Park is enormous.
There are trees. There are bushes. There are quiet corners where you might reasonably believe nobody has set foot since the nineteenth century.
But that doesn't make it an acceptable alternative to a toilet.
The marathon organisers provide designated facilities, and runners should use them rather than relieving themselves in public.
Apart from being inconsiderate, public urination at an organised sporting event can result in disciplinary action.
And imagine having to explain that to your family.
"How did the marathon go?"
"Well, I was on course for a personal best, but I got disqualified for urinating beside a tree."
It's not quite the inspirational story you were hoping to tell.
Besides, Phoenix Park is home to hundreds of deer.
They've enough problems without having to watch 22,500 people turn their habitat into an outdoor bathroom.
What Happens If You Need the Toilet During the Race?
First of all, don't panic.
Needing the toilet during a marathon is perfectly normal.
Running places considerable demands on the digestive system, and the combination of physical exertion, nerves, food and energy gels can sometimes produce rather unpleasant consequences.
Some runners experience a condition commonly known as runner's trots.
It's an unfortunate name for something that can turn a perfectly respectable marathon into an emergency evacuation exercise.
If you need to stop, move safely towards the side of the course and locate the next designated toilet.
Avoid suddenly cutting across other runners. Nobody wants to be involved in a collision because you've decided that your digestive system has reached DEFCON 1.
If there's a queue, stand clear of the running route. The organisers specifically advise runners not to obstruct others while waiting for toilet facilities.
And remember, stopping for a few minutes isn't the end of your marathon.
Yes, you might lose some time.
Yes, your Garmin might record a rather unfortunate kilometre split.
But that's preferable to spending the next three miles desperately attempting to negotiate with your own bowels.
Can You Avoid Needing the Toilet During the Marathon?
You can reduce the chances of an unexpected stop, although there are no guarantees.
Your digestive system has never signed a contract promising to behave itself.
The first rule is simple.
Don't experiment on race morning.
If you've spent months eating toast and bananas before long runs, don't suddenly decide that Sunday October 25th is the perfect opportunity to introduce a full Irish breakfast, three espressos and a large bowl of porridge.
Your stomach may have objections.
Quite violent ones.
Stick with the foods and drinks you've practised using during training. Avoid suddenly increasing your fibre intake, and be sensible about caffeine if you know it affects your digestive system.
Hydration matters too, but drinking excessive amounts of water immediately before the start won't magically improve your performance. It may simply leave you looking for a toilet before you've reached the first mile marker.
Don't deliberately dehydrate yourself to avoid toilet stops either.
Follow a sensible hydration and fuelling plan that you've already tested.
And give yourself enough time after breakfast to visit the toilet before leaving for the start.
It's not glamorous advice.
But neither is spending mile 15 conducting an emergency search for the nearest portable toilet.
What If There's a Queue and You're Chasing a Personal Best?
This is where things become interesting.
Imagine you've trained for six months to break four hours.
You're running beautifully. Your splits are consistent. You've resisted the temptation to sprint the opening kilometre like an absolute lunatic.
Then, at mile 16, your stomach announces that it's withdrawing its support from the entire operation.
You approach a portable toilet.
There's a queue.
Three people.
All looking equally desperate.
Your carefully calculated pacing strategy is suddenly in ruins.
Unfortunately, there's no guaranteed solution here.
You can stop and deal with the problem, or potentially make matters significantly worse by trying to ignore it.
For most people, the sensible decision is obvious.
A personal best is lovely.
Finishing a marathon without suffering a catastrophic wardrobe malfunction is also a fairly respectable achievement.
Sometimes you have to adjust your expectations.
And remember, a few minutes lost to a toilet stop does not erase months of preparation or make the marathon any less worthwhile.
A Final Word Before You Go
The Dublin Marathon is one of the highlights of the Irish running calendar, bringing thousands of people together for a remarkable journey through the capital.
There will be personal bests, emotional finishes, extraordinary acts of determination and plenty of runners discovering just how long the final six miles can feel.
But for some participants, the most important moment of the entire race won't involve the finish line.
It'll be spotting a portable toilet in the distance.
And hearing the beautiful words:
"There's nobody waiting."
So plan ahead, familiarise yourself with the course, give yourself plenty of time before the start and don't be embarrassed if nature calls during the race.
After all, the Dublin Marathon is supposed to test your endurance.
Not the structural integrity of your running shorts.
