Leadville Trail 100 ultramarathon
E424811
The Leadville Trail 100 ultramarathon is a legendary high-altitude 100-mile foot race in the Colorado Rockies, renowned for its grueling terrain and extreme elevation challenges.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Leadville Race Series | 1 |
| Leadville Trail 100 MTB race | 1 |
| Leadville Trail 100 Run | 1 |
| Leadville Trail 100 ultramarathon canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4234486 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Leadville Trail 100 ultramarathon Context triple: [Leadville, Colorado, knownFor, Leadville Trail 100 ultramarathon]
-
A.
Missoula Marathon
The Missoula Marathon is a popular annual long-distance running race in Missoula, Montana, known for its scenic course and strong community support.
-
B.
Mount Wilson Trail Race
The Mount Wilson Trail Race is a historic and challenging annual mountain running event in Southern California that follows one of the region’s oldest hiking trails up the slopes of Mount Wilson.
-
C.
Azalea Trail Run
The Azalea Trail Run is a popular annual road race and community running event held in Mobile, Alabama.
-
D.
The Great American Race
The Great American Race is a prestigious annual NASCAR Cup Series event held at Daytona International Speedway, widely regarded as the sport’s most important and iconic stock car race.
-
E.
Colorado Rush
Colorado Rush is an American youth soccer club known for developing elite players, including future U.S. national team stars.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Leadville Trail 100 ultramarathon Target entity description: The Leadville Trail 100 ultramarathon is a legendary high-altitude 100-mile foot race in the Colorado Rockies, renowned for its grueling terrain and extreme elevation challenges.
-
A.
Missoula Marathon
The Missoula Marathon is a popular annual long-distance running race in Missoula, Montana, known for its scenic course and strong community support.
-
B.
Mount Wilson Trail Race
The Mount Wilson Trail Race is a historic and challenging annual mountain running event in Southern California that follows one of the region’s oldest hiking trails up the slopes of Mount Wilson.
-
C.
Azalea Trail Run
The Azalea Trail Run is a popular annual road race and community running event held in Mobile, Alabama.
-
D.
The Great American Race
The Great American Race is a prestigious annual NASCAR Cup Series event held at Daytona International Speedway, widely regarded as the sport’s most important and iconic stock car race.
-
E.
Colorado Rush
Colorado Rush is an American youth soccer club known for developing elite players, including future U.S. national team stars.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
endurance foot race
ⓘ
trail running event ⓘ ultramarathon ⓘ |
| aidStations | multiple aid stations along the course ⓘ |
| allowsPacers | yes ⓘ |
| alsoKnownAs |
Leadville Trail 100 Run
ⓘ
linked to:
Leadville Trail 100 ultramarathon
Race Across the Sky ⓘ |
| altitudeEffect | reduced oxygen availability for runners ⓘ |
| attracts |
amateur endurance athletes
ⓘ
elite ultrarunners ⓘ |
| category |
mountain ultramarathon
ⓘ
trail ultramarathon ⓘ |
| challenge |
risk of altitude sickness
ⓘ
significant cumulative elevation gain and loss ⓘ variable mountain weather ⓘ |
| city |
Leadville
ⓘ
linked to:
Leadville, Colorado
|
| country |
United States
ⓘ
linked to:
United States of America
|
| distance |
100 miles
ⓘ
approximately 161 kilometers ⓘ |
| elevation | high altitude ⓘ |
| eventType | solo foot race ⓘ |
| finishLocation | Leadville, Colorado ⓘ |
| hasCompanionEvents |
Leadville Silver Rush 50 Run
ⓘ
Leadville Trail 100 MTB ⓘ Leadville Trail Marathon ⓘ |
| highestPoint | Hope Pass ⓘ |
| locatedIn |
Leadville, Colorado, United States
ⓘ
linked to:
Leadville, Colorado
|
| notableFeature |
extreme elevation challenges
ⓘ
out-and-back crossing of Hope Pass ⓘ thin air due to high altitude ⓘ |
| organizer | Life Time Fitness ⓘ |
| partOf |
Leadville Race Series
ⓘ
linked to:
Leadville Trail 100 ultramarathon
|
| raceFormat | out-and-back course ⓘ |
| region |
Colorado Rockies
ⓘ
linked to:
Central Colorado Rockies
|
| reputation |
legendary ultramarathon
ⓘ
one of the most challenging 100-mile races in North America ⓘ |
| season | summer ⓘ |
| startLocation | Leadville, Colorado ⓘ |
| startTime | early morning ⓘ |
| state | Colorado ⓘ |
| surface |
dirt road
ⓘ
jeep road ⓘ trail ⓘ |
| terrain |
mountainous
ⓘ
rocky ⓘ steep climbs and descents ⓘ |
| timeLimit | 30 hours ⓘ |
| typicalMonthHeld | August ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Leadville Trail 100 ultramarathon Description of subject: The Leadville Trail 100 ultramarathon is a legendary high-altitude 100-mile foot race in the Colorado Rockies, renowned for its grueling terrain and extreme elevation challenges.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Leadville Trail 100 ultramarathon
linked to: Leadville Trail 100 ultramarathon
linked to: Leadville Trail 100 ultramarathon