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| Chiltern Ridge Classic 50Krunawayracing.com/races/chiltern-ridge-ultra-trail/ (opens in a new tab) |  United Kingdom | BerkhamstedUnited Kingdom | runawayracing.com/races/chiltern-ridge-ultra-trail/ (opens in a new tab) |
| Loud Thunder 50suntrailrunning.com (opens in a new tab) |  United States | Illinois CityUnited States | suntrailrunning.com (opens in a new tab) |
| Whiskey Basin Trail Runsaravaiparunning.com/whiskey-basin/ (opens in a new tab) | United States | PrescottUnited States | aravaiparunning.com/whiskey-basin/ (opens in a new tab) |
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| Ultra Trail Vipava Valleyultratrail.si (opens in a new tab) |  Slovenia | AjdovščinaSlovenia | ultratrail.si (opens in a new tab) |
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| Trail de Montaigutrail-de-montaigu.fr (opens in a new tab) |  France | BouillyFrance | trail-de-montaigu.fr (opens in a new tab) |
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| Trail Menorca Camí de Cavallstrailmenorca.es (opens in a new tab) |  Spain | CiutadellaSpain | trailmenorca.es (opens in a new tab) |
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| Hammer Trail Springhammertrail.dk/spring/ (opens in a new tab) |  Denmark | AllingeDenmark | hammertrail.dk/spring/ (opens in a new tab) |
| Pennine Barrier Ultra 50gbultras.com/pennine-barrier-50 (opens in a new tab) | United Kingdom | MalhamUnited Kingdom | gbultras.com/pennine-barrier-50 (opens in a new tab) |
| Greenland Trail Racescoloradorunnerevents.com/greenland/ (opens in a new tab) | United States | LarkspurUnited States | coloradorunnerevents.com/greenland/ (opens in a new tab) |
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| Innsbruck Alpine Trailrun Festivalinnsbruckalpine.at/en/ (opens in a new tab) |  Austria | InnsbruckAustria | innsbruckalpine.at/en/ (opens in a new tab) |
| Volvic Volcanic Experiencevolvic-vvx.com (opens in a new tab) | France | VolvicFrance | volvic-vvx.com (opens in a new tab) |
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| Ultra-Trail des Coursièrestraildescoursieres.fr/ultra-trail-des-coursieres (opens in a new tab) | France | Saint-Martin-en-HautFrance | traildescoursieres.fr/ultra-trail-des-coursieres (opens in a new tab) |
| MTC Pookaultrarunningltd.co.uk/race/mtc-pooka (opens in a new tab) |  Ireland | GoleenIreland | ultrarunningltd.co.uk/race/mtc-pooka (opens in a new tab) |
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| 24h Run Sintra24hlx.com (opens in a new tab) |  Portugal | SintraPortugal | 24hlx.com (opens in a new tab) |
| Corfu Mountain Trailcorfumountaintrail.com (opens in a new tab) |  Greece | CorfuGreece | corfumountaintrail.com (opens in a new tab) |
| Exmoorendurancelife.com/exmoor (opens in a new tab) | United Kingdom | MartinhoeUnited Kingdom | endurancelife.com/exmoor (opens in a new tab) |
| MTC Leprechaunultrarunningltd.co.uk/race/mtc-leprechaun (opens in a new tab) | Ireland | GlengarriffIreland | ultrarunningltd.co.uk/race/mtc-leprechaun (opens in a new tab) |
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| MTC Machaultrarunningltd.co.uk/race/mtc-macha (opens in a new tab) | Ireland | KillarneyIreland | ultrarunningltd.co.uk/race/mtc-macha (opens in a new tab) |
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| MTC Shamrockultrarunningltd.co.uk/race/mtc-shamrock (opens in a new tab) | Ireland | BallybunionIreland | ultrarunningltd.co.uk/race/mtc-shamrock (opens in a new tab) |
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| MTC Bansheeultrarunningltd.co.uk/race/mtc-banshee (opens in a new tab) | Ireland | LimerickIreland | ultrarunningltd.co.uk/race/mtc-banshee (opens in a new tab) |
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| MTC Dullahanultrarunningltd.co.uk/race/mtc-dullahan (opens in a new tab) | Ireland | Spanish PointIreland | ultrarunningltd.co.uk/race/mtc-dullahan (opens in a new tab) |
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| MTC Enbarrultrarunningltd.co.uk/race/mtc-enbarr (opens in a new tab) | Ireland | BallyvaughanIreland | ultrarunningltd.co.uk/race/mtc-enbarr (opens in a new tab) |
| West Macs Monsterwestmacsmonster.com.au (opens in a new tab) |  Australia | Alice SpringsAustralia | westmacsmonster.com.au (opens in a new tab) |
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| MTC Oilliphéistultrarunningltd.co.uk/race/mtc-oillipheist (opens in a new tab) | Ireland | GalwayIreland | ultrarunningltd.co.uk/race/mtc-oillipheist (opens in a new tab) |
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| Gran Raid delle Prealpi Trevigianegranraid.it (opens in a new tab) |  Italy | SegusinoItaly | granraid.it (opens in a new tab) |