Compiled and fact-checked by Tommo, Verus founder · Last verified August 2026 · Spot an error?
Running · 10Ks
Hertfordshire 10K 2026
- Race day
- Sunday, 1 November 2026
- Location
- Knebworth, Hertfordshire, UK
- Distance
- 6.2 mi / 10.0 km
Hertfordshire 10K: 1 November 2026. Entry, course, charity, a pace calculator.
Hertfordshire 10K Race Timeline
52 days to go
More than 42 days out — a good window to build a consistent base before 10K-specific training ramps up.
Hertfordshire 10K 2026: quick answers
When is Hertfordshire 10K 2026?
Hertfordshire 10K 2026 takes place on Sunday, 1 November 2026, starting at 9:30am (the Hertfordshire Half Marathon starts 30 minutes earlier at the same venue).
What time does Hertfordshire 10K start?
Hertfordshire 10K starts at 9:30am (the Hertfordshire Half Marathon starts 30 minutes earlier at the same venue) from Knebworth House, Old Knebworth Lane, Knebworth.
Where does Hertfordshire 10K start and finish?
Hertfordshire 10K starts at Knebworth House, Old Knebworth Lane, Knebworth and finishes at Knebworth House, Old Knebworth Lane, Knebworth.
How many miles is Hertfordshire 10K?
Hertfordshire 10K is 6.2 miles (10km).
How much does Hertfordshire 10K cost to enter?
Entry is direct via RunThrough Events — no qualifying time or ballot. 10K entry was £38 as of Aug 2026; always confirm the current price on the official site, as it typically rises closer to race day.
How can I track a runner at Hertfordshire 10K?
No dedicated live-tracking app is advertised for this event — check the official RunThrough race page for any updates closer to race day.
Key Race Metrics & Overview
- Date
- Sunday, 1 November 2026
- Distance
- 6.2 miles / 10.0km
- Location
- Knebworth, Hertfordshire, UK
- Start Point
- Knebworth House, Old Knebworth Lane, Knebworth
- Finish Point
- Knebworth House, Old Knebworth Lane, Knebworth
- Start time
- 9:30am (the Hertfordshire Half Marathon starts 30 minutes earlier at the same venue)
- Surface
- Closed public and estate roads, tarmac
- Cut-off time
- No separate 10K cut-off is published — the event's overall road-closure window runs for around 3 hours from the first start. Confirm the exact time on the official site.
- Tracking app
- No dedicated live-tracking app is advertised for this event — check the official RunThrough race page for any updates closer to race day.
Not published by the organiser at the time of writing: age requirement. Verus records these as unconfirmed rather than estimating them — check the official race website closer to race day.
Direct Entry Summary
Entry is direct via RunThrough Events — no qualifying time or ballot. 10K entry was £38 as of Aug 2026; always confirm the current price on the official site, as it typically rises closer to race day.
Ballot Policy
No ballot — entry is first come, first served via RunThrough Events.
Hertfordshire 10K Race Day Weather
A real forecast appears here once one exists for race day — usually about a week to ten days out. Nothing is shown until then, because a made-up forecast is worse than none.
Hertfordshire 10K Route Map & Elevation Profile
Starting at Knebworth House, Old Knebworth Lane, Knebworth and finishing at Knebworth House, Old Knebworth Lane, Knebworth. Total elevation gain is not published for this event, and Verus does not estimate one.
Is Hertfordshire 10K flat?
Not billed as flat — it shares its course style with the Half Marathon, running through Knebworth Park and the surrounding countryside lanes rather than flat closed city roads. No official elevation figure is published for the 10K specifically; expect rolling country-lane terrain over a shorter distance than the Half.
Hertfordshire 10K Course Profile
Elevation change not published for this event.
Tap a point on the course for details.
Knebworth House, Old Knebworth Lane, Knebworth
Start line.
Knebworth Park
The route starts by running through the grounds of Knebworth Park before heading out onto the surrounding lanes.
Rural Hertfordshire lanes
Shares its rolling, country-lane course style with the Half Marathon over a shorter distance — no official elevation figure is published for the 10K specifically.
Where Hertfordshire 10K starts and finishes
These are the start and finish points, not the route. Verus doesn't hold course files for this race, and drawing a line between two pins would be a guess you might end up training on. The official course map is the one to use: view it on the organiser's site .
Full Hertfordshire 10K Route Breakdown
Shares its closed-road, chip-timed start and finish with the Half Marathon at Knebworth House, running a shorter loop through the grounds of Knebworth Park and the surrounding rural Hertfordshire lanes before returning to finish at Knebworth House.
Hertfordshire 10K Pace Calculator & Splits
Hertfordshire 10K Pace Calculator
Enter a target finish time to see your pace and projected splits.
Average pace / mile
38:43
Average pace / km
24:03
Hertfordshire 10K Pace Chart
Split markers calculated for standard checkpoints — no official pacers are confirmed for this event.
| Target | Pace /mi | Pace /km | 5K | Finish |
|---|---|---|---|---|
| 3:00 | 29:02 | 18:02 | 1:30:12 | 3:00:00 |
| 3:15 | 31:27 | 19:33 | 1:37:43 | 3:15:00 |
| 3:30 | 33:52 | 21:03 | 1:45:14 | 3:30:00 |
| 3:45 | 36:17 | 22:33 | 1:52:45 | 3:45:00 |
| 4:00 | 38:43 | 24:03 | 2:00:16 | 4:00:00 |
| 4:15 | 41:08 | 25:33 | 2:07:47 | 4:15:00 |
| 4:30 | 43:33 | 27:04 | 2:15:18 | 4:30:00 |
| 4:45 | 45:58 | 28:34 | 2:22:49 | 4:45:00 |
| 5:00 | 48:23 | 30:04 | 2:30:20 | 5:00:00 |
| 5:30 | 53:14 | 33:04 | 2:45:22 | 5:30:00 |
| 6:00 | 58:04 | 36:05 | 3:00:24 | 6:00:00 |
| 6:30 | 1:02:54 | 39:05 | 3:15:26 | 6:30:00 |
| 7:00 | 1:07:45 | 42:06 | 3:30:28 | 7:00:00 |
Hertfordshire 10K Finish Time Estimator
Enter a recent 5K, 10K or Half Marathon time to estimate your Hertfordshire 10K finish time.
Your 5K time
Estimated Hertfordshire 10K finish
52:00
An estimate only, based on Pete Riegel's race-time prediction formula. Real marathon performance depends on endurance, training specificity, pacing and race-day conditions — not just your speed over a shorter distance.
Training for a different distance? Try the full pace calculator, race time predictor or pace chart.
Got your target time? Save it to your profile.
Tag Hertfordshire 10K, set your goal pace, and let Verus track your countdown, training and fundraising in one place.
Start Your Verus JourneyHertfordshire 10K Race Day Checklist
Tap items to mark off your race-day readiness.
- Race number attached, and any timing chip fitted per your race pack instructions
- Weather-appropriate kit — this is a rural, open-countryside course with less shelter than a city race
- Your own gels/fuel, since on-course drink station contents for this event weren't published at the time of writing
- A plan for reaching Knebworth — the village has its own railway station on the East Coast Main Line
- A meeting point agreed with family/friends at Knebworth House for after the race
Training Strategy for Hertfordshire 10K
6-10 weeks is a solid window for a 10K, whether it's your first or you're chasing a PB. Consistency and a weekly speed or threshold session matter more here than sheer mileage.
This is a largely flat course, so most of your long runs can mirror that — flat and steady, building time on feet rather than hill strength.
Ease off mileage in the final week, keeping a couple of short, sharp race-pace efforts to stay fresh. Arrive at Knebworth House, Old Knebworth Lane, Knebworth fresh, energized, and primed — not fit, fresh.
Lock in your target pace using the interactive splits calculator below — no official pacers are confirmed for this event, so a pace band on your watch is the more reliable option.
Test your race-day fuel and hydration plan on your long training runs, not for the first time on race day — check the Race Day Checklist below for what's actually on this course.
10K Nutrition & Fueling Plan
A 10K doesn't demand the same carb-loading as a half or full marathon — a normal balanced diet in the days before is fine, with a slightly larger carb portion the night before.
Eat something light and familiar 1-2 hours before the start — this is a shorter race, so a heavy breakfast can do more harm than good.
On-course drink station contents for this event weren't published at the time of writing — most runners won't need fuel for a 10K, but carry water if you prefer to.
The first hour after finishing is when carbohydrate and protein do the most for recovery — check what's available at Knebworth House post-race, or plan to head into Stevenage or Welwyn Garden City for a proper meal.
Hertfordshire 10K Charity Places 2026
The event's official charity partner is Garden House Hospice Care. RunThrough also supports fundraising places for other charities on request — there's no universal minimum published, so contact RunThrough or the charity directly for current terms.
Lead with your personal story — explain why the charity matters to you. Personal connection generates 3x more support than a generic link broadcast.
Share key training milestones on Instagram (first 10-miler, peak week, race week) with your fundraising link in bio. Publicly thanking donors prompts secondary gifts!
Running Hertfordshire 10K for charity?
Link your JustGiving page to Verus and show up right here alongside other Hertfordshire 10K fundraisers — goal, progress and story, all in one place.
Add Your Fundraiser to VerusWhere to Stay for Hertfordshire 10K
Knebworth / Stevenage
Closest to the start and finish at Knebworth House — realistic to walk or take a short local journey on race morning.
A small village with limited hotel choice; Stevenage itself has more options a short drive or train ride away.
Welwyn Garden City / Hatfield
More hotel choice than Knebworth itself, still a short train journey away on the same rail line.
Not walking distance — you'll need to factor in getting to Knebworth on race morning.
Travel & Logistics
Knebworth has its own railway station on the East Coast Main Line, a short walk from Knebworth House — the simplest way in if you're not driving.
Not applicable — check the official event page for on-site parking availability and any restrictions around Knebworth House on race day.
Roads around the course are closed for the duration of the event and reopen once the last finishers and marshals have cleared the route.
Spectator & Cheer Guide
Knebworth Park itself, right by the start and finish at Knebworth House, is the easiest spot to watch from without needing to travel out onto the closed country lanes.
Because the route loops back through Knebworth Park, spectators based near the start/finish can often see runners pass more than once without moving far.
No dedicated live-tracking app is advertised for this event — check the official RunThrough race page for any updates closer to race day.
Hertfordshire 10K Frequently Asked Questions
Everything you need to know for race weekend.
People Also Search For
Similar races
Welwyn 10K
Welwyn Garden City, Hertfordshire, UK
Abbots Langley Tough Ten
Abbots Langley, Hertfordshire, UK
Standalone 10K
Letchworth Garden City, Hertfordshire, UK
Watford 10K
Watford, Hertfordshire, UK
St Albans 10K
St Albans, Hertfordshire, UK
Hitchin 10K
Hitchin, Hertfordshire, UK
Race details independently compiled and fact-checked by Tommo against the official Hertfordshire 10K site , last verified August 2026. Always confirm official timings and policies directly prior to race day.