[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fbQnyFF5A4FkGC0TprIUBbaDVH8DqmENz5X9C6wu61NA":-1,"feature-flags":3,"$fhFfxYXp3ALhaeYCNbpjGgJ0SpeQRgdACsTXxuivjSwY":5},{"homepage_proof_v2":4,"homepage_hero_cta_v2":4,"welcome_immediate_v1":4,"lifecycle_events_v1":4,"funnel_tracking_v1":4,"activation_reward_v1":4,"promo_codes_v1":4,"referral_v1":4,"pro_signup_bonus_v1":4,"pro_space_v1":4,"trial_express_v1":4,"microscope_v1":4,"login_page_v2":4,"signup_magic_reminder_v1":4,"first_session_48h_v1":4,"onboarding_purge_v1":4,"runner_profile_v1":4,"session_reminder_v1":4},true,{"permalink":6,"name":7,"seoTitle":8,"startDate":9,"endDate":8,"country":10,"countryIso":11,"city":12,"location":12,"disciplines":13,"distances":16,"participantsEstimate":8,"bigEventFlag":19,"featured":19,"websiteUrl":20,"socialLinks":21,"registrationUrl":22,"registrationOpenDate":8,"registrationOpenTime":8,"registrationCloseDate":8,"registrationOpenUrl":8,"registrationOpenStatus":8,"entry":8,"description":23,"descriptionLocale":24,"availableLocales":25,"screenshotUrl":8,"department":8,"departmentSlug":8,"distanceHubs":27,"usDistanceHubs":28,"state":8,"regionHub":8,"hasFiche":4,"isRunning":4,"duplicateOfPermalink":8,"isPast":19,"isStale":19,"indexableLocales":29,"nextEditionPermalink":8,"provisional":8,"region":8,"geo":30,"edition":33,"tags":35,"races":36,"nearby":46},"beast-of-the-beacons-ultra-40m-plus-20m-10mile","Beast of the Beacons Ultra 40m plus 20m & 10mile",null,"2027-04-17","United Kingdom","GB","Llangynidr",[14,15],"Course","Trail",[17,18],"16.09 km","32.18 km",false,"https:\u002F\u002Fwww.limitlesstrails.co.uk\u002F",[],"https:\u002F\u002Fworldsmarathons.com\u002Fmarathon\u002Fbeast-of-the-beacons\u002Fregister?ref=Wo2X9tu","\u003Cp>\u003Cstrong>Beast of the Beacons Ultra 40m plus 20m & 10mile\u003C\u002Fstrong> takes place on 17 April 2027 in Llangynidr, Wales. Three distances start in waves: the 40-mile ultra (64.4 km) at 8am, the 20-mile race (32.2 km) at 9am and the 10-mile race (16.1 km) at 10am.\u003C\u002Fp>\u003Cp>With starts staggered an hour apart, runners on every distance share the course over a common time window. The 10 miles is an accessible introduction for anyone used to 10 km road races, provided they wear shoes suited to Welsh terrain. The 20 miles is a demanding long run, useful as part of an ultra build-up. The 40 miles calls for a dedicated training block of several months, a tested fuelling plan and experience of managing several hours of effort in changeable weather.\u003C\u002Fp>","en",[26,24],"fr",[],[],[26,24],{"lat":31,"lng":32},51.8687319,-3.2269901,{"year":34,"number":8,"firstYear":8},2027,[],[37,40,43],{"name":38,"distanceFormatted":8,"distanceMeters":39,"discipline":8,"elevationGain":8,"itraPoints":8,"date":9,"time":8,"lastEditionFinisherCount":8},"20 Mile Trail Running Challenge",32180,{"name":41,"distanceFormatted":8,"distanceMeters":42,"discipline":8,"elevationGain":8,"itraPoints":8,"date":9,"time":8,"lastEditionFinisherCount":8},"10 Mile Trail Running Challenge",16090,{"name":44,"distanceFormatted":8,"distanceMeters":45,"discipline":8,"elevationGain":8,"itraPoints":8,"date":9,"time":8,"lastEditionFinisherCount":8},"40 Mile Ultra Challenge",64360,[47,57,67,76,85,94],{"permalink":48,"name":49,"startDate":50,"city":51,"distances":52,"distanceKm":55,"ficheLocales":56},"beacons-marathon-and-ultra-2026","Beacons Marathon and Ultra","2026-11-09","Talybont-on-Usk",[53,54],"73.7 km","43.3 km",5,[24],{"permalink":58,"name":59,"startDate":60,"city":51,"distances":61,"distanceKm":55,"ficheLocales":66},"brecon-beacons-trail-challenge-2027","Brecon Beacons Trail Challenge","2027-05-03",[62,63,64,65],"52 km","43 km","25 km","11 km",[24],{"permalink":68,"name":69,"startDate":70,"city":51,"distances":71,"distanceKm":55,"ficheLocales":75},"beacons-ultra-and-trail-marathon","Beacons Ultra and Trail Marathon","2026-11-07",[72,73,74],"21.1 km","41.8 km","75.6 km",[24],{"permalink":77,"name":78,"startDate":79,"city":80,"distances":81,"distanceKm":83,"ficheLocales":84},"trails-tarmac-back-yard-ultra-winter","Trails & Tarmac Back Yard Ultra - Winter","2027-02-06","Llangattock",[82],"1 h",6,[24],{"permalink":86,"name":87,"startDate":88,"city":51,"distances":89,"distanceKm":92,"ficheLocales":93},"midnight-mountain-marathon","Midnight Mountain Marathon","2027-06-12",[90,91],"26.2 mi","13.1 mi",7,[24],{"permalink":95,"name":96,"startDate":97,"city":98,"distances":99,"distanceKm":103,"ficheLocales":104},"beast-of-the-blacks-ultra-40-mi-plus-20-10-mile","Beast of the Blacks Ultra 40 mi plus 20 & 10 mile","2027-03-06","Crickhowell",[100,101,102],"17 km","32.5 km","65 km",8,[24]]