Compiled and fact-checked by Tommo, Verus founder · Last verified August 2026 · Spot an error?
Running · Ultra Marathons
Black Cattle Ultra (Gwartheg Duon) 2026
- Race day
- Saturday, 29 August 2026
- Location
- Cardiff, Wales, UK, UK
- Distance
- 44 mi / 70.8 km
Black Cattle Ultra (Gwartheg Duon): 29 August 2026, from Llanthony Priory or Abergavenny (point-to-point). Route, distance and where to check results.
Black Cattle Ultra (Gwartheg Duon) Race Timeline
12 days since race day
Black Cattle Ultra (Gwartheg Duon) runs most years, but the next date hasn't been announced. Ask to be notified above and we'll email you the day it is.
Black Cattle Ultra (Gwartheg Duon): quick answers
When is the next Black Cattle Ultra (Gwartheg Duon)?
The next date hasn't been published by the organiser yet. The most recent Black Cattle Ultra (Gwartheg Duon) was Saturday, 29 August 2026, and the race has usually run around the same point in the year.
Where does Black Cattle Ultra (Gwartheg Duon) start?
Black Cattle Ultra (Gwartheg Duon) starts at Llanthony Priory or Abergavenny (point-to-point). The organiser hasn't published a finish location.
How many miles is Black Cattle Ultra (Gwartheg Duon)?
Black Cattle Ultra (Gwartheg Duon) is 44 miles (70.8km).
How much does Black Cattle Ultra (Gwartheg Duon) cost to enter?
44 miles £90 / 33 miles £80
Key Race Metrics & Overview
- Date
- Saturday, 29 August 2026
- Distance
- 44 miles / 70.8km
- Location
- Cardiff, Wales, UK, UK
- Start Point
- Llanthony Priory or Abergavenny (point-to-point)
- Surface
- Trail/mountain (Cambrian Way)
Not published by the organiser at the time of writing: finish point, start time, cut-off time, age requirement, tracking app. Verus records these as unconfirmed rather than estimating them — check the official race website closer to race day.
Direct Entry Summary
44 miles £90 / 33 miles £80
Ballot Policy
No ballot — entry is direct through Ridge Runners.
Black Cattle Ultra (Gwartheg Duon) 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.
Black Cattle Ultra (Gwartheg Duon) Route Map & Elevation Profile
Starting at Llanthony Priory or Abergavenny (point-to-point). The organiser hasn't published a finish location. Total elevation gain is not published for this event, and Verus does not estimate one.
Is Black Cattle Ultra (Gwartheg Duon) flat?
No official elevation figure is published for this course, so Verus doesn't state one. The organiser describes the going as: trail/mountain (cambrian way).
Black Cattle Ultra (Gwartheg Duon) Course Profile
Elevation change not published for this event.
Tap a point on the course for details.
Llanthony Priory or Abergavenny (point-to-point)
Start line.
Where Black Cattle Ultra (Gwartheg Duon) starts and finishes
Black Cattle Ultra (Gwartheg Duon) starts at Llanthony Priory or Abergavenny (point-to-point). We haven't been able to place those on a map accurately enough to show one — a pin in the wrong place is worse than no pin.
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.
Full Black Cattle Ultra (Gwartheg Duon) Route Breakdown
44-mile (or 33-mile) point-to-point trail ultra along the Cambrian Way, finishing in Cardiff at Cardiff Harlequins RFC, Whitchurch — genuinely within the Cardiff city boundary.
Black Cattle Ultra (Gwartheg Duon) Pace Calculator & Splits
Black Cattle Ultra (Gwartheg Duon) Pace Calculator
Enter a target finish time to see your pace and projected splits.
Average pace / mile
5:27
Average pace / km
3:23
Black Cattle Ultra (Gwartheg Duon) Pace Chart
Split markers calculated for standard checkpoints — no official pacers are confirmed for this event.
| Target | Pace /mi | Pace /km | 5K | 10K | Half Marathon | 30K | Finish |
|---|---|---|---|---|---|---|---|
| 3:00 | 4:05 | 2:33 | 12:43 | 25:25 | 53:38 | 1:16:16 | 3:00:00 |
| 3:15 | 4:26 | 2:45 | 13:46 | 27:32 | 58:06 | 1:22:37 | 3:15:00 |
| 3:30 | 4:46 | 2:58 | 14:50 | 29:39 | 1:02:34 | 1:28:58 | 3:30:00 |
| 3:45 | 5:07 | 3:11 | 15:53 | 31:46 | 1:07:02 | 1:35:19 | 3:45:00 |
| 4:00 | 5:27 | 3:23 | 16:57 | 33:54 | 1:11:30 | 1:41:41 | 4:00:00 |
| 4:15 | 5:48 | 3:36 | 18:00 | 36:01 | 1:15:58 | 1:48:02 | 4:15:00 |
| 4:30 | 6:08 | 3:49 | 19:04 | 38:08 | 1:20:27 | 1:54:23 | 4:30:00 |
| 4:45 | 6:29 | 4:01 | 20:07 | 40:15 | 1:24:55 | 2:00:45 | 4:45:00 |
| 5:00 | 6:49 | 4:14 | 21:11 | 42:22 | 1:29:23 | 2:07:06 | 5:00:00 |
| 5:30 | 7:30 | 4:40 | 23:18 | 46:36 | 1:38:19 | 2:19:49 | 5:30:00 |
| 6:00 | 8:11 | 5:05 | 25:25 | 50:50 | 1:47:16 | 2:32:31 | 6:00:00 |
| 6:30 | 8:52 | 5:30 | 27:32 | 55:05 | 1:56:12 | 2:45:14 | 6:30:00 |
| 7:00 | 9:33 | 5:56 | 29:39 | 59:19 | 2:05:08 | 2:57:56 | 7:00:00 |
Black Cattle Ultra (Gwartheg Duon) Finish Time Estimator
Enter a recent 5K, 10K or Half Marathon time to estimate your Black Cattle Ultra (Gwartheg Duon) finish time.
Your 5K time
Estimated Black Cattle Ultra (Gwartheg Duon) finish
6:55:05
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 Black Cattle Ultra (Gwartheg Duon), set your goal pace, and let Verus track your countdown, training and fundraising in one place.
Start Your Verus JourneyBlack Cattle Ultra (Gwartheg Duon) 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, plus something warm and disposable to discard before the start
- A plan for reaching Llanthony Priory or Abergavenny (point-to-point)
- A meeting point agreed with family and friends for after the race
Training Strategy for Black Cattle Ultra (Gwartheg Duon)
20-24 weeks is the realistic window for a first 44-mile ultra, assuming you already have a marathon's worth of base behind you. The block that matters is back-to-back long weekends — a long run on Saturday followed by a second, slower one on Sunday — which builds time on feet and teaches you to run on tired legs without the recovery cost of one enormous day. Practise your race-day nutrition on every one of them; at this distance the stomach fails before the legs do.
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.
Drop volume hard across the final three to four weeks — further out and steeper than a marathon taper, because a 30-mile training day costs weeks of recovery, not days. Keep some easy running and a little terrain-specific work in, but the goal is to reach Llanthony Priory or Abergavenny (point-to-point) with fresh feet and a rested gut rather than one more long run in the bank.
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.
44-Mile Ultra Nutrition & Fueling Plan
A deliberate increase in carbohydrate over the two to three days before the race is the well-established approach at marathon distance.
Eat a carbohydrate-focused breakfast two to three hours before the start, and stick to something you've already tested in training rather than trying anything new.
Most runners take on carbohydrate every 30 to 45 minutes from about an hour in, alongside fluid at the on-course stations.
A mix of carbohydrate and protein in the hour or so after finishing supports recovery.
Black Cattle Ultra (Gwartheg Duon) Charity Places 2026
No formal charity-place scheme published — runners commonly fundraise for a charity of their own choosing.
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 Black Cattle Ultra (Gwartheg Duon) for charity?
Link your JustGiving page to Verus and show up right here alongside other Black Cattle Ultra (Gwartheg Duon) fundraisers — goal, progress and story, all in one place.
Add Your Fundraiser to VerusTravel & Logistics
No road closures — the Black Cattle Ultra (Gwartheg Duon) is run off-road (Trail/mountain (Cambrian Way)), so local traffic is unaffected.
Black Cattle Ultra (Gwartheg Duon) Frequently Asked Questions
Everything you need to know for race weekend.
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Race details independently compiled and fact-checked by Tommo against the official Black Cattle Ultra (Gwartheg Duon) site , last verified August 2026. Always confirm official timings and policies directly prior to race day.