Predict your Lisbon Marathon finish time from a recent race, with the course climb and typical race-day weather already built in. Then use the course notes below to plan your pacing and fuelling.
Use a recent all-out race on a fairly flat course in mild weather.
Filled in with the typical weather for the race month. Change it to the forecast closer to race day.
Before we send your report: your gels
Check the label on the gel you train with. We use this to build your gel-by-gel race timeline. Already training your gut to take more carbs? Set your own hourly target.
Get your full race report by email: your pacing plan split by split, carbohydrate, fluid and sodium per hour for this finish time, a gel-by-gel race timeline, and course notes.
Figures from the 2025 course track. Routes can change from year to year, so check the official race website before race day.
42.2 km, finishing in Lisbon.
About 140 m of climbing and 144 m of descent, mostly in many small rises rather than long hills.
Highest point about 40 m, around km 11. Most of the second half is close to sea level.
Around 18°C and 70% humidity in October. Warmer than most Irish and northern European marathons.
Based on the 2025 course track, kilometre by kilometre:
Pacing. The hills are all in the first 17 km, so don’t chase pace there. After that the course is mostly flat, and that’s where an even effort pays off. Heat is the bigger factor: at around 18°C the predictor already adds time, and a warmer day adds more.
Fuelling. Most marathon runners aim for 60–75 g of carbohydrate per hour, and more if they have practised it in training. In warm weather, fluid and sodium matter more. The predictor’s emailed report and the fuelling calculator give you a gel timeline by kilometre.
Turn the prediction into a race. Pick the support that fits your build-up.
A plan built around you and your race, adjusted week by week by your coach. See coaching →
Free zone calculator using the Endurance Lab 7-zone method, from a recent race or test. Calculate your zones →
5K, 10K and half marathon plans on the Endurance Lab 7-zone method. One plan, one purchase. See the plans →
Carbohydrate, fluid and sodium targets for race day, with a gel timeline. Plan your fuelling →
More race guides. Ireland: Dublin Marathon · Dublin Half Marathon · Cork City Marathon · Belfast City Marathon. Portugal: Funchal Marathon.
More free tools: Race time predictor · Zone calculator · All free tools
