Leiden, Netherlands · 42.195 km road marathon
Leiden Marathon 2027
Sunday 9 May 2027
A flat single loop from Leiden's Tuinstadwijk through the polder villages east of the city, back along the Singels to a finish on the Vismarkt, with 6 hours from your own start.
Leiden Marathon at a glance
- Start
- 08:30 on the Koninginnelaan, Tuinstadwijk (2026 time)
- Finish
- Vismarkt, behind the town hall beside the Rijn
- Course
- One flat loop through the polder villages east of Leiden and back via the Singels
- Elevation
- From about sea level to 7 m
- Time limit
- 6 hours from your own start-line crossing; results are ranked on gun time
- Cut-offs
- None published; a broom wagon follows the field
- Entry
- Not yet open: entry opens Thursday 1 October 2026 at 12:00; 69 euro in 2026
- Bib pickup
- Garenmarkt tent, Saturday 13:00 to 18:00 or race morning from 07:00 (2026), or posted for 5 euro
- Aid stations
- Drink posts about every 5 km with water-only sponge points between (2026 map)
Entry details were checked on 24 September 2026 and may have changed since: a date in the entry rules has passed. Check the organizer's entry page before relying on them.
Checked against the organizer's pages on 24 September 2026. Facts for the next edition can still change; the organizer's page is the final word.
Leiden Marathon course map and elevation
One flat loop through the polder villages east of Leiden and back via the Singels. Map, elevation profile and 3D flyover.
› running direction two lines: out and back on the same road race kilometresCourse: TrailSplits reconstruction; map data © OpenStreetMap contributors
Route drawn by TrailSplits from the organizer's published 2026 course map; approximate. For illustration, not navigation.
What to expect on the course
- A short out-and-back of about 250 m on the Lammenschansweg straight after the start, then south over the N206 at km 1.5
- Polder villages: Zoeterwoude-Dorp at km 4, Koudekerk aan den Rijn at km 14 to 15, Hoogmade at km 20, Roelofarendsveen at km 24 to 27
- Rijpwetering at km 31 and Oud Ade at km 32, then back into Leiden on the Leidseweg and Zijldijk near km 37
- The last 4 km on the Singels, over the Morspoortbrug and Rembrandtbrug near km 41, past the Galgewater to the Vismarkt
The map follows the organizer's 2026 marathon route from the Koninginnelaan to the Vismarkt; the 2027 route is not yet published.
Read the full course description
A single loop, not laps, from the Tuinstadwijk through the polders and villages east of Leiden and back along the Singels, as drawn on the organizer's 2026 map; the Koninginnelaan start returns in 2027. Runners go about 250 m north on the Lammenschansweg, turn, and head south over the N206 at km 1.5 to Zoeterwoude-Dorp at km 4. The Nieuweweg crosses open polder eastwards, the route follows the Rijndijk beside the Oude Rijn at km 10 to 11, turns, and comes back on the Achthovenerweg to Koudekerk aan den Rijn at km 14 to 15. It then runs north to Hoogmade at km 20, Roelofarendsveen at km 24 to 27, Rijpwetering at km 31 and Oud Ade at km 32, and returns on the Leidseweg and the Zijldijk into Leiden near km 37. The last 4 km follow the Herensingel, Maresingel and Rijnsburgersingel, cross the Morspoortbrug and Rembrandtbrug near km 41 and pass the Galgewater and Aalmarkt to the Vismarkt. The course is flat, between about 4 m below and 7 m above sea level; the organizer publishes no climb figure or surface details. Water and sports-drink posts sit at about km 5, 11, 15, 20, 25, 32, 37 and 40 with water-only sponge points between, clocks every 5 km, and the last pacer table runs from 3:00 to 5:00.
Source, licence and file
TrailSplits reconstruction of the published route. Course: TrailSplits reconstruction; map data © OpenStreetMap contributors · ODbL · original source · Download reference GPX (42.3 km in the file). Approximate terrain-model heights added by TrailSplits, sampled and smoothed at roughly 100 m intervals. Buildings, bridges and small road gradients are not surveyed road elevations.Produced using Copernicus WorldDEM-30 © DLR e.V. 2010-2014 and © Airbus Defence and Space GmbH 2014-2018 provided under COPERNICUS by the European Union and ESA; all rights reserved.
Three decisions to make before race day
Enter at 12:00 on 1 October, or plan on the resale platform
Entry opens on Thursday 1 October 2026 at 12:00 and places went fast in 2026. After a sell-out the only accepted route is the organizer's resale platform, at up to 20 percent above the price.
More detail
Entry for 9 May 2027 opens on Thursday 1 October 2026 at 12:00, and the organizer warns that places went fast last year: in 2026 the half marathon sold out by 25 January. The 2026 marathon cost 69 euro with entry closing on 1 May. After a sell-out the organizer accepts only its own resale platform, at up to 20 percent above the regular price.
Collect your bib on Saturday or have it posted
Collect on Saturday afternoon or have the bib posted for 5 euro (request by 1 April). Race-morning pickup opens at 07:00, only 90 minutes before the 08:30 start (2026 times).
More detail
In 2026 the Garenmarkt tent issued bibs on Saturday 13:00 to 18:00 and from 07:00 on race morning, 90 minutes before the 08:30 gun. That same morning you must drop your bag in the Van der Werfpark, hand in own bottles by 07:25 and stand in your pen 15 minutes before the start. Posting costs 5 euro if requested by 1 April.
Plan drinks for the km 25 to 32 stretch
No drink post between km 25 and km 32, only water near km 28. Leave labelled bottles for km 10, 20, 30 and 40 by 07:25 on race morning.
More detail
The 2026 map shows posts with water and PowerBar sports drink about every 5 km, but none between Floraweg near km 25 and Hertogspark near km 32, only a water-only sponge point near km 28. Marathon runners may leave labelled bottles for the km 10, 20, 30 and 40 points, handed in at the bag drop by 07:25 or at the Saturday helpdesk.
Your race-day sheet
Even elapsed splits for 42.195 km. All clocks are local to Leiden.
ESTIMATED FINISH
12:30:00
MOVING PACE BUDGET
5:34/ km
ELAPSED PACE
5:41/ km
120 min below the modelled finish limit
| Distance | Elapsed | Local clock |
|---|---|---|
| 5 km | 00:28:26 | 08:58:26 |
| 10 km | 00:56:53 | 09:26:53 |
| 15 km | 01:25:19 | 09:55:19 |
| 20 km | 01:53:45 | 10:23:45 |
| Halfway | 02:00:00 | 10:30:00 |
| 25 km | 02:22:12 | 10:52:12 |
| 30 km | 02:50:38 | 11:20:38 |
| 35 km | 03:19:05 | 11:49:05 |
| 40 km | 03:47:31 | 12:17:31 |
| Finish | 04:00:00 | 12:30:00 |
Training plan for Leiden Marathon 2027
A free week-by-week plan dated to this race. It starts from a stated default (weekly distance, longest recent run, days a week) that you can change; nothing is read from your watch or training history. It does not use the finish-time target above.
View my training planNo account required. Keep a fixed copy, download the calendar or get a subscription URL for Google or Apple Calendar.
Entry, bib pickup and rules
- Entry:
- Not yet open: entry opens Thursday 1 October 2026 at 12:00; 69 euro in 2026
- Bib pickup:
- Garenmarkt tent, Saturday 13:00 to 18:00 or race morning from 07:00 (2026), or posted for 5 euro
Read the full entry and pickup rules
Entry for the 36th edition opens on Thursday 1 October 2026 at 12:00; the 2027 price is unpublished and the 2026 marathon cost 69 euro. In 2026 entry ran until 1 May or until a distance sold out, and the half marathon sold out by 25 January. Runners must be 18 on race day. A place could be transferred through the confirmation email until 1 May, and after a sell-out the organizer accepts only its own resale platform, at no more than 20 percent above the regular price. In 2026 bibs were collected in the big tent in the Johnson & Johnson Park on the Garenmarkt on Saturday 13:00 to 18:00 or race morning 07:00 to 14:30, or posted for 5 euro if requested by 1 April.
Sources
Checked 24 September 2026; next review due 2026-11-03. Event facts come from the organizer; the pacing sheet, decisions and plan are TrailSplits' own. Independently prepared by TrailSplits, not endorsed by the organizer.
- Home page
- Marathon page (42 van SWIS)
- Race rules (wedstrijdreglement)
- Q&A
- 2026 programme
- Resale platform and 2026 sell-out notice
- Organizer interactive map
What each source confirms
- Home page: The 36th edition on 8 and 9 May 2027 with the 42 km run on Sunday, the Koninginnelaan start returning in 2027, the Vismarkt finish and entry opening on Thursday 1 October at 12:00.
- Marathon page (42 van SWIS): The 2026 08:30 start on the Koninginnelaan, the Vismarkt finish, the 69 euro fee, the 6 hour net-time limit and broom wagon, the minimum age of 18, own-drink handling and pacer assembly. 2026 facts, not 2027 confirmations.
- Race rules (wedstrijdreglement): The 6 hour marathon limit counted from crossing the start line, gun time as the official time, being in the start pen 15 minutes before the start and no clothing drop at the start.
- Q&A: 2026 bib pickup at the Garenmarkt tent on Saturday 13:00 to 18:00 and Sunday 07:00 to 14:30, posting for 5 euro until 1 April, transfers and entry until 1 May, age limits, gun and net time, clocks every 5 km, own bottles at km 10, 20, 30 and 40 by 07:25, the Van der Werfpark bag drop and water-only sponge points.
- 2026 programme: The 2026 race-day timetable: bib pickup and bag drop from 07:00 and the 08:30 marathon start.
- Resale platform and 2026 sell-out notice: The organizer's own resale platform, capped at 20 percent above the regular price; https://marathon.nl/halve-marathon-uitverkocht/ records the half marathon selling out on 25 January 2026.
- Organizer interactive map: The 2026 marathon line, start and finish points, bag drop, drink posts and sponge points used for the map and the kilometre references; https://marathon.nl/pacers/ gives the pacer table.