There are currently 15 active parkrun events in present-day Hertfordshire. The first was St Albans which started on January 9th 2012 and the newest is Oaklands College which started on January 18th 2025.

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 16 parkrun events. It includes Oak Hill which is now part of Greater London.

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

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

***Ellenbrook Fields parkrun is now permanently cancelled ***

I completed this event on: June 17th 2017 with a finish time of: 25:52
Other routes touched: N/A
This event was also part of Chilterns parkrun
Inaugural: May 21st 2016
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

***Heartwood Forest parkrun is now permanently cancelled ***

I completed this event on: January 20th 2018 with a finish time of: 28:00
Other routes touched: N/A
Inaugural: June 29th 2017
Final event: October 6th 2018
Links: Event Home Page, Course Page, blog7t write-up

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 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 have not yet completed this event
This event is also part of LonDone ++
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

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

***Tring parkrun is now permanently cancelled ***

I completed this event on: November 22nd 2014 with a finish time of: 27:01
Other routes touched (walk): The Ridgeway
Other routes touched (walk): The Icknield Way Trail
This event was also part of Chilterns parkrun
Inaugural: November 1st 2014
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

Completing all Hertfordshire parkruns