Completing all Hertfordshire parkruns
There are currently 17 active parkrun events in present-day Hertfordshire. The first was St Albans which started on January 9th 2012 and the newest is Holywell King George V Playing Fields which started on January 24th 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 18 parkrun events. It includes 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.
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 show the route at the time that I ran it and may have changed since then.
Aldenham
I completed this event on: November 14th 2015 with a finish time of: 25:08
Other routes touched (Walk): London Loop
This event is also part of LonDone +
Inaugural: June 20th 2015
Links: Event Home Page, Course Page, blog7t write-up
Barclay
I completed this event on: January 19th 2019 with a finish time of: 26:27
Other routes touched: N/A
Inaugural: June 6th 2015
Links: Event Home Page, Course Page, blog7t write-up
Cassiobury
I completed this event on: Christmas Day 2015 with a finish time of: 25:00
Other routes touched: N/A
This event is also part of LonDone + and Chilterns parkrun
Inaugural: February 28th 2015
Links: Event Home Page, Course Page, blog7t write-up
Castle Park
I completed this event on: New Year’s Day 2019 with a finish time of: 25:11
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
Region: East of England. 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
I completed this event on: November 21st 2015 with a finish time of: 27:29
Other routes touched: N/A
This event is also part of Chilterns parkrun
Inaugural: May 2nd 2015
Links: Event Home Page, Course Page, blog7t write-up
Heartwood Forest
This parkrun event has been permanently cancelled.
I completed this event on: January 20th 2018 with a finish time of: 28:00
Region: East of England. County: Hertfordshire
Inaugural: June 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
I have not yet completed this event
Inaugural: January 24th 2026
Links: Event Home Page, Course Page
Jersey Farm
I completed this event on: November 24th 2018 with a finish time of: 27:53
Other routes touched: N/A
This event is also part of LonDone ++ and Chilterns parkrun
Inaugural: November 10th 2018
Links: Event Home Page, Course Page, blog7t write-up
Leavesden Country
I first completed this event on: January 21st 2023 with a finish time of: 26:16
Other routes touched: None
This event is also part of LonDone +
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
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
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
Other routes touched: N/A
Inaugural: October 11th 2014
Links: Event Home Page, Course Page, blog7t write-up
Rickmansworth
I completed this event on: April 1st 2017 with a finish time of: 26:24
Other routes touched (cycle): NCN 6, 61
This event is also part of LonDone + and Chilterns parkrun
Inaugural: March 4th 2017
Links: Event Home Page, Course Page, blog7t write-up
Stanborough
I have not yet completed this event
Inaugural: October 4th 2025
Links: Event Home Page, Course Page
South Oxhey
I completed this event on: January 31st 2015 with a finish time of: 27:14
Other routes touched: N/A
This event is also part of LonDone + and parkrun Compass Club
Inaugural: January 31st 2015
Links: Event Home Page, Course Page, blog7t write-up
St Albans
I completed this event on: February 22nd 2014 with a finish time of: 25:17
Other routes touched: N/A
This event is also part of LonDone ++ and Chilterns parkrun
Inaugural: January 9th 2012
Links: Event Home Page, Course Page, blog7t write-up
Stevenage
I completed this event on: January 26th 2019 with a finish time of: 24:15
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
Region: East of England. 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 prioritize conservation over mass events.
Links: Event Home Page, Course Page, blog7t write-up
Westmill
I completed this event on: New Year’s Day 2018 with a finish time of: 29:01
Other routes touched: N/A
This event is also part of parkrun Compass Club
Inaugural: July 22nd 2017
Links: Event Home Page, Course Page, blog7t write-up
More parkrun posts
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.
Featured and popular parkrun posts: