Staged on ~20-mile rolling singletrack anchored by the Pemberton Trail, the race uses festival vibes (“Jalloween”) to power a fast, looped course and big aid-station energy. The 100-mile covers five loops, the 100K three, and the 31K one, all from the Four Peaks Staging Area near Fountain Hills/Fort McDowell. It’s also a Western States Golden Ticket race, drawing deep competitive fields alongside costumed crews and runners. Expect exposed Sonoran-desert terrain, efficient logistics at “Javelina Jeadquarters,” and nonstop atmosphere all weekend.
Race Date:
25 October, 2025
The Javelina Jundred 100‑Mile takes place on Saturday, 25 October 2025, and is organised by Aravaipa Running at McDowell Mountain Regional Park near Fountain Hills, Arizona. This iconic, party‑style ultramarathon features a five‑loop (~20‑mile) course through the Sonoran Desert—on rolling single‑track filled with saguaro, boulders, and wash beds—raising over 6,243 ft in elevation, and serving as a coveted Western States 100 “Golden Ticket” qualifier.
Race Date:
25 October, 2025
The Javelina Jundred 100 K is also on 25 October 2025, hosted by Aravaipa Running, at the same McDowell Mountain Regional Park venue. Runners cover the first three loops of the 100‑mile course (~62 miles), encountering the same festive desert terrain and earning ITRA points toward elite racing.
Race Date:
25 October, 2025
The Jackass 31 K, part of the Javelina Jundred weekend, runs on 25 October 2025, organised by Aravaipa Running, also at McDowell Mountain Regional Park. This single‑loop (~19.4 mi) night trail provides a playful, “party” ultra experience often completed in costume and includes entry to the famed “Jackass Night Trail” celebration.
Weather based on historical averages.
The Javelina Jundred 100‑Mile takes place on Saturday, 25 October 2025, and is organised by Aravaipa Running at McDowell Mountain Regional Park near Fountain Hills, Arizona. This iconic, party‑style ultramarathon features a five‑loop (~20‑mile) course through the Sonoran Desert—on rolling single‑track filled with saguaro, boulders, and wash beds—raising over 6,243 ft in elevation, and serving as a coveted Western States 100 “Golden Ticket” qualifier.
The Javelina Jundred 100 Mile is 161km long.
The Javelina Jundred 100 Mile takes place in Fort McDowell, AZ, USA.
The Javelina Jundred 100 Mile elevation gain is 1919 meters, which Runna classifies as a Moderate race.
The best way to train for the next race is to use a personalized training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalized training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
The Javelina Jundred 100‑Mile takes place on Saturday, 25 October 2025, and is organised by Aravaipa Running at McDowell Mountain Regional Park near Fountain Hills, Arizona. This iconic, party‑style ultramarathon features a five‑loop (~20‑mile) course through the Sonoran Desert—on rolling single‑track filled with saguaro, boulders, and wash beds—raising over 6,243 ft in elevation, and serving as a coveted Western States 100 “Golden Ticket” qualifier.
The Javelina Jundred 100 Mile is 161km long.
The Javelina Jundred 100 Mile takes place in Fort McDowell, AZ, USA.
The Javelina Jundred 100 Mile elevation gain is 1919 meters, which Runna classifies as a Moderate race.
The best way to train for the next race is to use a personalized training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalized training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
The Javelina Jundred 100 K is also on 25 October 2025, hosted by Aravaipa Running, at the same McDowell Mountain Regional Park venue. Runners cover the first three loops of the 100‑mile course (~62 miles), encountering the same festive desert terrain and earning ITRA points toward elite racing.
The Javelina Jundred 100km is 100km long.
The Javelina Jundred 100km takes place in Fort McDowell, AZ, USA.
The Javelina Jundred 100km elevation gain is 1206 meters, which Runna classifies as a Moderate race.
The best way to train for the next race is to use a personalized training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalized training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
The Javelina Jundred 100 K is also on 25 October 2025, hosted by Aravaipa Running, at the same McDowell Mountain Regional Park venue. Runners cover the first three loops of the 100‑mile course (~62 miles), encountering the same festive desert terrain and earning ITRA points toward elite racing.
The Javelina Jundred 100km is 100km long.
The Javelina Jundred 100km takes place in Fort McDowell, AZ, USA.
The Javelina Jundred 100km elevation gain is 1206 meters, which Runna classifies as a Moderate race.
The best way to train for the next race is to use a personalized training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalized training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
The Jackass 31 K, part of the Javelina Jundred weekend, runs on 25 October 2025, organised by Aravaipa Running, also at McDowell Mountain Regional Park. This single‑loop (~19.4 mi) night trail provides a playful, “party” ultra experience often completed in costume and includes entry to the famed “Jackass Night Trail” celebration.
The Javelina Jundred 31km is 31km long.
The Javelina Jundred 31km takes place in Fort McDowell, AZ, USA.
The Javelina Jundred 31km elevation gain is 355 meters, which Runna classifies as a Moderate race.
The best way to train for the next race is to use a personalized training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalized training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
The Jackass 31 K, part of the Javelina Jundred weekend, runs on 25 October 2025, organised by Aravaipa Running, also at McDowell Mountain Regional Park. This single‑loop (~19.4 mi) night trail provides a playful, “party” ultra experience often completed in costume and includes entry to the famed “Jackass Night Trail” celebration.
The Javelina Jundred 31km is 31km long.
The Javelina Jundred 31km takes place in Fort McDowell, AZ, USA.
The Javelina Jundred 31km elevation gain is 355 meters, which Runna classifies as a Moderate race.
The best way to train for the next race is to use a personalized training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalized training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
Running
Nature
Park
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