{"slug": "aethelred-ultra", "name": "Aethelred Ultra", "url": "https://ultracyclinghub.com/events/aethelred-ultra/", "kind": "adventure", "discipline": "gravel", "surface": "Gravel", "country": "United Kingdom", "region": "Wessex", "description": "600 km gravel ultra in southern England. Self-supported, back for 2027.", "official_url": "https://www.aethelredultra.com/", "verified_on": "2026-10-09", "needs_recheck": false, "editions": [{"id": 222, "url": "https://ultracyclinghub.com/events/aethelred-ultra/2027/222/", "year": 2027, "label": "600 km", "status": "confirmed", "display_status": "Dates confirmed", "start_date": "2027-05-29", "end_date": null, "start_location": "", "latitude": null, "longitude": null, "distance_km": 600, "elevation_m": null, "time_limit_hours": null, "support": "self", "registration": "unknown", "registration_url": "", "registration_opens": null, "registration_closes": null, "entry_fee": null, "currency": "GBP", "entry_requirements": "", "route_summary": "", "route_url": "", "finish_location": "", "logistics": "", "notes": "- 29 May 2027", "follow_url": "", "source_url": "https://www.aethelredultra.com/", "verified_on": "2026-10-09", "needs_recheck": false}], "sources": [{"title": "Official site", "url": "https://www.aethelredultra.com/", "checked_on": "2026-10-09", "facts": "2027", "edition_id": null}]}