Completing all Hertfordshire parkruns

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There are currently 18 active parkrun events in present-day Hertfordshire. The first was St Albans which started on January 14th 2012 and the newest is Rothamsted Park which started on April 4th 2026.

Heartwood Forest was also a Hertfordshire event but has now closed. Ellenbrook Fields and Tring parkrun were active until the Covid-19 parkrun pause and are now also permanently closed. The name for having completed all parkrun events in the county is “King of Herts” or “Queen of Herts”.

The Historic County of Hertfordshire has 19 parkrun events. These include Oak Hill which is now part of Greater London.

I first completed the county on February 2nd 2019 at Letchworth.

Numbers exclude any events that are not open to the general public such as prisons or armed forces facilities.

All of the Hertfordshire parkrun events …

Below are each of the Hertfordshire 5k parkrun events in alphabetical order. A few things to note:

  • The interactive maps below take you to the approximate location for the course, typically the centre of the park. See the course instructions in the parkrun page for each event for specific directions to the start.

  • Course maps and elevation profiles show the route at the time that I ran it and may have changed since then. See the Course page in the event’s page on parkrun.org.uk for the current course outline. Note that course outlines are from Garmin data during a specific run and may vary from the officially measured distance.

  • Please contact me if you spot an event that doesn’t have a course map and elevation profile and you would like to donate one from your own run. I’m also interested in maps and elevation profiles for courses that have changed or where there’s a regular alternative route (e.g. Horsham). I’ll need a GPX file from your run plus the date. I’ll include a credit for you and will donate £1 to parkrun.

Aldenham

 

Barclay

  • I completed this event on: January 19th 2019 with a finish time of: 26:27

  • Historic County: Hertfordshire

  • Ceremonial County: Hertfordshire

  • Other routes touched: N/A

  • Inaugural: June 6th 2015

  • Links: Event Home Page, Course Page, blog7t write-up

 

Cassiobury

 

Castle Park

  • I completed this event on: New Year’s Day 2019 with a finish time of: 25:11

  • Historic County: Hertfordshire

  • Ceremonial County: Hertfordshire

  • Other routes touched: N/A

  • Inaugural: September 30th 2017

  • Links: Event Home Page, Course Page, blog7t write-up

 

Ellenbrook Fields

  • This parkrun event has been permanently cancelled.

  • I completed this event on: June 17th 2017 with a finish time of: 25:52

  • Historic County: Hertfordshire

  • Ceremonial County: Hertfordshire

  • This event was also part of Chilterns parkrun

  • Inaugural: May 21st 2016. Final Event: #203 on March 14th 2020

  • Reason for cancellation: Event organizers could not secure the necessary permission from the landowners to continue hosting the event after the COVID-19 pause.

  • Links: Event Home Page, Course Page, blog7t write-up

 

Gadebridge

 

Heartwood Forest

  • This parkrun event has been permanently cancelled.

  • I completed this event on: January 20th 2018 with a finish time of: 28:00

  • Historic County: Hertfordshire

  • Ceremonial County: Hertfordshire

  • Inaugural: July 29th 2017. Final event: #47 on October 6th 2018

  • Reason for cancellation: Due to challenges with sustainability, traffic, and potential negative impacts on the growing woodland.

  • Replaced by: Jersey Farm

  • Links: Event Home Page, Course Page, blog7t write-up

 

Holywell King George V Playing Fields

 

Jersey Farm

 

Leavesden Country

  • I first completed this event on: January 21st 2023 with a finish time of: 26:16

  • Historic County: Hertfordshire

  • Ceremonial County: Hertfordshire

  • This event is also part of LonDone +

  • Other routes touched: None

  • Inaugural: October 22nd 2022

  • Links: Event Home Page, Course Page, blog7t write-up

 

Letchworth

  • I completed this event on: February 2nd 2019 with a finish time of: 28:31

  • Historic County: Hertfordshire

  • Ceremonial County: Hertfordshire

  • Other routes touched (walk): Letchworth Greenway

  • Inaugural: January 27th 2018

  • Links: Event Home Page, Course Page, blog7t write-up

 

Oaklands College

  • I completed this event on: November 22nd 2025 with a finish time of: 26:29

  • Historic County: Hertfordshire

  • Ceremonial County: Hertfordshire

  • This event is also part of LonDone ++

  • Other routes touched: None

  • Inaugural: January 18th 2025

  • Links: Event Home Page, Course Page

 

Panshanger

  • I completed this event on: New Year’s Day 2018 with a finish time of: 26:46

  • Historic County: Hertfordshire

  • Ceremonial County: Hertfordshire

  • Other routes touched: N/A

  • Inaugural: October 11th 2014

  • Links: Event Home Page, Course Page, blog7t write-up

 

Rickmansworth

 

Rothamsted Park

  • I have not yet completed this event

  • Historic County: Hertfordshire

  • Ceremonial County: Hertfordshire

  • Inaugural: April 4th 2026

  • Links: Event Home Page, Course Page

 

Stanborough

  • I have not yet completed this event

  • Historic County: Hertfordshire

  • Ceremonial County: Hertfordshire

  • Inaugural: October 4th 2025

  • Links: Event Home Page, Course Page

 

South Oxhey

 

St Albans

 

Stevenage

  • I completed this event on: January 26th 2019 with a finish time of: 24:15

  • Historic County: Hertfordshire

  • Ceremonial County: Hertfordshire

  • Other routes touched: N/A

  • Inaugural: May 28th 2016

  • Links: Event Home Page, Course Page, blog7t write-up

 

Tring

  • This parkrun event has been permanently cancelled.

  • I completed this event on: November 22nd 2014 with a finish time of: 27:01

  • Historic County: Hertfordshire

  • Ceremonial County: Hertfordshire

  • This event was also part of Chilterns parkrun

  • Inaugural: November 1st 2014. Final Event: #293 on March 14th 2020

  • Reason for cancellation: The Woodland Trust, which manages Tring Park, withdrew permission due to the event's negative impact on the park's sensitive chalk grassland, ancient monuments, and SSSI (Site of Special Scientific Interest) areas, citing concerns about damage, administrative burden, and the need to prioritise conservation over mass events.

  • Links: Event Home Page, Course Page, blog7t write-up

 

Westmill

 

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parkruns are free, weekly, community 5k events all around the world. I started in December 2012 and have been obsessive about it ever since. See my parkrun Collection page for details.

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Richard gowerRun, parkrun, Hertfordshire, England3 Comments