Cybi Coastal Marathon
- Total distance: 42.2 km
- Location: Holyhead
- Race Date: 31 Jul 2027
- Format: 1 day
- Pacing Complexity: Moderate (30/100)
Cybi Coastal Marathon
- Distance
- 42.2 km
- Total ascent
- 910 m
- Town/Village
- Holyhead
- Date
- 31 July 2027
Overview
No overview text has been written for this race yet.
Quick Facts
- Entrance Cost: Unknown
- Organiser: Unknown
- Start Town: Holyhead
- Dogs Allowed: Unknown
- Start Date: 31 Jul 2027
- End Date: 31 Jul 2027
- Start Time: Unknown
- Final Cut-off: Unknown
Navigation
- Type: Unknown
- Closest Train Station: Unknown
- Distance from Start Line: Unknown
Eligibility
- Minimum Age: Unknown
- Gender Eligibility: All genders
- Minimum Entry Criteria: Unknown
Toilets
- Hand Washing Beyond Sanitiser: Unknown
- Period Products Provided: Unknown
- Female Only Toilets: Unknown
Family & Spectators
- Baby Changing at Start: Unknown
- Family Friendly Spectator Areas: Unknown
- Flexible Deferral or Cancellation: Unknown
Safety
- Marshalls at Isolated Areas: Unknown
- Safeguarding and Reporting Policy: Unknown
- Can Hide Location from Public Tracking: Unknown
Terrain & Elevation
The course covers a genuine mix of surfaces, with trail (36%) and grass (28%) being the most common and neither clearly dominating. The terrain is highly fragmented, switching roughly every kilometre. This demands constant mental engagement and limits the ability to build a sustained rhythm from surface consistency alone. Climbs are mostly on trail, though the surface varies across the ascents. Downhills are spread across a mix of surfaces, with grass most common.
Cybi Coastal Marathon has 14.3 km of trail / path, this is in the top 71% of all our races.
- Trail / Path36% · 14.3 km
- Grass28% · 11.1 km
- Paved Road22% · 9.1 km
- Sand6% · 2.2 km
- Gravel / Track5% · 2.1 km
- Rocky3% · 1.1 km
Distance
42.5 km
Ascent
910 m
Descent
911 m
High Point
217 m
Compared against 27 other races of a similar distance, Cybi Coastal Marathon has more total elevation gain than 33% of them, and more elevation gain per kilometre than 33% of them — flatter than most races of this distance.
Source: GPX Data
Gradient
5.51%
Average climb gradient
Do you have experience of gentle climbs like Cybi Coastal Marathon's, which average 5.51%?
Cybi Coastal Marathon's climbs average 5.51%. If your training never rehearses sustained climbing at that gradient, race day will be the first time your legs meet it.
3.08%
Average descent gradient
Do you have experience of gentle descents like Cybi Coastal Marathon's, which average 3.08%?
Cybi Coastal Marathon's descents average 3.08%. If your training never rehearses sustained descending at that gradient, the downhills will empty your quads long before the finish.
Source: GPX Data
Climate
Pacing Complexity
Cybi Coastal Marathon scores 30/100 for pacing complexity, rated moderate.
Similar-distance races score a median of 24/100 (5 races compared).
Cybi Coastal Marathon is among the more pacing-complex races at this distance. The challenge is not just the total distance or ascent — it is the repeated need to change effort level. A fixed pace target is unlikely to work here. The dominant source of complexity is terrain type changes, which means preparation should include training runs that deliberately mix different intensities in sequence.
Source: GPX Data
Aid Stations
No aid station data available for this race yet.
Are you ready for Cybi Coastal Marathon?
Compare it to a race you've already run, or connect Strava and see the three biggest gaps between your training and what this course will ask of you.

