Grandmaster Ultras 2025
- Date Sat 1st March 2025 - Sun 2nd March 2025
- Time 7:00AM EST
- Location Mesquite, Nevada
- Price $170.60 - $279.25
- Races 4 races
- Distances Ultra
Event summary
Join us for the exhilarating Grandmaster Ultras 2025, taking place from Saturday, March 1 to Sunday, March 2, 2025, in the stunning desert landscape of Mesquite, Clark, Arizona! Runners of all levels can participate in a variety of challenging race distances, including the 100-mile and 100K events with a generous 48-hour cutoff, as well as the 50-mile and 50K races, which need to be completed within 24 hours.
This event promises breathtaking views and thrilling trails, featuring the iconic Thelma Louise loop and rocky ATV paths that will test your endurance and spirit. Whether you're a seasoned ultramarathoner or a newcomer to the sport, you’ll have the opportunity to run alongside friends and family with the option of pacers for various races. Embrace the adventure and the camaraderie as you tackle these scenic courses with elevation gains that will leave you in awe. Don't miss your chance to experience the beauty of the Arizona strip while pushing your limits at the Grandmaster Ultras 2025!
This event promises breathtaking views and thrilling trails, featuring the iconic Thelma Louise loop and rocky ATV paths that will test your endurance and spirit. Whether you're a seasoned ultramarathoner or a newcomer to the sport, you’ll have the opportunity to run alongside friends and family with the option of pacers for various races. Embrace the adventure and the camaraderie as you tackle these scenic courses with elevation gains that will leave you in awe. Don't miss your chance to experience the beauty of the Arizona strip while pushing your limits at the Grandmaster Ultras 2025!
Organiser's Description
Welcome to the warm and sunny Arizona strip! Come and enjoy miles of ATV trails and beautiful scenery in the desert. 100 miles and 100k have 48 hours cutoff. 50K and 50 miler runners start on Saturday, they will have 24 hours to finish the race.
Pacers are allowed for 100 miles and 100k after first lap or when it gets dark. For 50K and 50M runners, you can also have pacer if you finish in the dark. Pacer can start pacing from any crew accessible aid station. For any runners over 70 years old, pacers are allowed from the start for all races.
Start/finish area is located at lat 36.8272085438359, long 113.997853251625 [https://maps.app.goo.gl/jMhSWrJZskydixkWA]
The main course is a 50K, featuring clockwise Thelma Louise loop [https://connect.garmin.com/modern/course/253331221], and 6.2 mile out-and-back, elevation gain and loss of 1580 feet, minimum elevation is at 1722 feet, maximum at 2605 feet, at mile 19, you will reach Thelma Louise site.
50 miler course [https://connect.garmin.com/modern/course/edit/257652206] will run Thelma Louise loop [https://connect.garmin.com/modern/course/253331221] twice before returning to start/finish, total elevation gain and loss 2450 feet.
100 miler runners will run 50 miler course [https://connect.garmin.com/modern/course/edit/257652206] twice.
100K runners will run 50K course [https://connect.garmin.com/modern/course/257650669] twice.
From Start [https://bit.ly/3FABYE8], running downhill, at mile 0.6 enter a tunnel, at mile 1, turn right, climb up a short but steep hill, at mile 1.5, take left fork and reach Oasis aid station (36.84685, -114.00539 [https://www.google.com/maps/dir//36.8468519,-114.0053946/@36.407577,-113.6428902,12z]) at mile 1.9.
From Oasis [https://bit.ly/3HInmUQ], another 4 miles of rocky ATV trail to Cross Roads (36.90197, -114.01001 [https://www.google.com/maps/dir//36.901976,-114.0100135/@36.407577,-113.6428902,12z]) water stop at mile 6.2. Go STRAIGHT for about 3.6 to reach Junction (36.95429, -114.00749 [https://www.google.com/maps/dir//36.9542986,-114.007491/@36.407577,-113.6428902,12z]) aid station at mile 9.8.
From Junction aid station, turn LEFT going towards Stateline for about 2 miles, turn RIGHT, go along power line for 1.9 miles, turn RIGHT, go another 0.3 mile, turn LEFT, there will be a water stop (36.96749, -114.00545 [https://www.google.com/maps/dir//36.9674967,-114.0054592/@36.9626664,-114.0866902,12z?entry=ttu]) at 13.8, follow ATV trail for 3.2 miles, to reach Cattle Gate aid station (36.93249, -114.00167 [https://www.google.com/maps/dir//36.9324968,-114.001677/@36.8308225,-114.5684897,9z?entry=ttu]) at mile 17.2.
From Cattle Gate, turn RIGHT, follow ATV trail along the fence for about 1.8 miles to Thelma and Louise site [https://www.google.com/maps/place/Thelma+and+Louise/@36.9321647,-113.968656,17z/data=!3m1!4b1!4m6!3m5!1s0x80ca2f3b26909b39:0x7d23107e5d413630!8m2!3d36.9321647!4d-113.968656!16s%2Fg%2F11j48jjj04?entry=ttu] at mile 19, turn RIGHT, go about 1 mile, turn RIGHT at water tank, go about 1 mile, turn LEFT, go about 1.2 miles to main dirt road, turn RIGHT, climb up dirt road for 1.5 miles to Overlook (36.89964, -113.99236 [https://www.google.com/maps/dir//36.8996423,-113.99236/@36.407577,-113.6428902,12z]) aid station at mile 23.7.
From Overlook [https://youtu.be/iuc52qmCwe8], go STRAIGHT, 1 mile to Cross Roads [https://youtube.com/playlist?list=PLojyxwndi_4hulSZCvbwgyC56yCR7T1qZ]water stop, 50M/100M turn RIGHT to repeat Thelma Louise Loop [https://connect.garmin.com/modern/course/253331221], then follow rest of 50K course, 50K/100K runners TURN LEFT, follow 4 miles of rocky ATV trails to unmanned Oasis [https://bit.ly/3kXscUG]. Go straight, then take RIGHT fork, go about 0.9 mile, turn LEFT at the bottom of the hill, go about 0.4 mile, go through the tunnel, another 0.3 mile, turn LEFT, back to start/finish.
50M course profile on Garmin Connect: https://connect.garmin.com/modern/course/edit/257652206
Google Map: 50M course map [https://www.google.com/maps/d/u/1/edit?mid=1GbNPe44OjLu4hNzjSRW_okugC3Dcd0A&ll=36.89947584025974%2C-113.99720907211304&z=12]
View 50M course map on Google Earth [https://earth.google.com/web/@36.89952823,-113.99720905,668.86074987a,28069.51317091d,30.00000129y,0h,0t,0r/data=MigKJgokCiAxR2JOUGU0NE9qTHU0aE56alNSV19va3VnQzNEY2QwQSACOgMKATE]
50K course profile on Garmin Connect: https://connect.garmin.com/modern/course/257650669
Google Map: 50KM course map [https://www.google.com/maps/d/u/1/edit?mid=1GbNPe44OjLu4hNzjSRW_okugC3Dcd0A&ll=36.89947584025974%2C-113.99720907211304&z=12]
View 50KM course map on Google Earth [https://earth.google.com/web/@36.89953186,-113.99720905,673.93732136a,28064.88507038d,30.00000129y,0h,60t,0r/data=KAIyKAomCiQKIDFFeFZsZEFfeEQ0QVNvUlVuYjNLeWJSajV3Mkl4RGhrIAI6AwoBMQ]
Pacers are allowed for 100 miles and 100k after first lap or when it gets dark. For 50K and 50M runners, you can also have pacer if you finish in the dark. Pacer can start pacing from any crew accessible aid station. For any runners over 70 years old, pacers are allowed from the start for all races.
Start/finish area is located at lat 36.8272085438359, long 113.997853251625 [https://maps.app.goo.gl/jMhSWrJZskydixkWA]
The main course is a 50K, featuring clockwise Thelma Louise loop [https://connect.garmin.com/modern/course/253331221], and 6.2 mile out-and-back, elevation gain and loss of 1580 feet, minimum elevation is at 1722 feet, maximum at 2605 feet, at mile 19, you will reach Thelma Louise site.
50 miler course [https://connect.garmin.com/modern/course/edit/257652206] will run Thelma Louise loop [https://connect.garmin.com/modern/course/253331221] twice before returning to start/finish, total elevation gain and loss 2450 feet.
100 miler runners will run 50 miler course [https://connect.garmin.com/modern/course/edit/257652206] twice.
100K runners will run 50K course [https://connect.garmin.com/modern/course/257650669] twice.
From Start [https://bit.ly/3FABYE8], running downhill, at mile 0.6 enter a tunnel, at mile 1, turn right, climb up a short but steep hill, at mile 1.5, take left fork and reach Oasis aid station (36.84685, -114.00539 [https://www.google.com/maps/dir//36.8468519,-114.0053946/@36.407577,-113.6428902,12z]) at mile 1.9.
From Oasis [https://bit.ly/3HInmUQ], another 4 miles of rocky ATV trail to Cross Roads (36.90197, -114.01001 [https://www.google.com/maps/dir//36.901976,-114.0100135/@36.407577,-113.6428902,12z]) water stop at mile 6.2. Go STRAIGHT for about 3.6 to reach Junction (36.95429, -114.00749 [https://www.google.com/maps/dir//36.9542986,-114.007491/@36.407577,-113.6428902,12z]) aid station at mile 9.8.
From Junction aid station, turn LEFT going towards Stateline for about 2 miles, turn RIGHT, go along power line for 1.9 miles, turn RIGHT, go another 0.3 mile, turn LEFT, there will be a water stop (36.96749, -114.00545 [https://www.google.com/maps/dir//36.9674967,-114.0054592/@36.9626664,-114.0866902,12z?entry=ttu]) at 13.8, follow ATV trail for 3.2 miles, to reach Cattle Gate aid station (36.93249, -114.00167 [https://www.google.com/maps/dir//36.9324968,-114.001677/@36.8308225,-114.5684897,9z?entry=ttu]) at mile 17.2.
From Cattle Gate, turn RIGHT, follow ATV trail along the fence for about 1.8 miles to Thelma and Louise site [https://www.google.com/maps/place/Thelma+and+Louise/@36.9321647,-113.968656,17z/data=!3m1!4b1!4m6!3m5!1s0x80ca2f3b26909b39:0x7d23107e5d413630!8m2!3d36.9321647!4d-113.968656!16s%2Fg%2F11j48jjj04?entry=ttu] at mile 19, turn RIGHT, go about 1 mile, turn RIGHT at water tank, go about 1 mile, turn LEFT, go about 1.2 miles to main dirt road, turn RIGHT, climb up dirt road for 1.5 miles to Overlook (36.89964, -113.99236 [https://www.google.com/maps/dir//36.8996423,-113.99236/@36.407577,-113.6428902,12z]) aid station at mile 23.7.
From Overlook [https://youtu.be/iuc52qmCwe8], go STRAIGHT, 1 mile to Cross Roads [https://youtube.com/playlist?list=PLojyxwndi_4hulSZCvbwgyC56yCR7T1qZ]water stop, 50M/100M turn RIGHT to repeat Thelma Louise Loop [https://connect.garmin.com/modern/course/253331221], then follow rest of 50K course, 50K/100K runners TURN LEFT, follow 4 miles of rocky ATV trails to unmanned Oasis [https://bit.ly/3kXscUG]. Go straight, then take RIGHT fork, go about 0.9 mile, turn LEFT at the bottom of the hill, go about 0.4 mile, go through the tunnel, another 0.3 mile, turn LEFT, back to start/finish.
50M course profile on Garmin Connect: https://connect.garmin.com/modern/course/edit/257652206
Google Map: 50M course map [https://www.google.com/maps/d/u/1/edit?mid=1GbNPe44OjLu4hNzjSRW_okugC3Dcd0A&ll=36.89947584025974%2C-113.99720907211304&z=12]
View 50M course map on Google Earth [https://earth.google.com/web/@36.89952823,-113.99720905,668.86074987a,28069.51317091d,30.00000129y,0h,0t,0r/data=MigKJgokCiAxR2JOUGU0NE9qTHU0aE56alNSV19va3VnQzNEY2QwQSACOgMKATE]
50K course profile on Garmin Connect: https://connect.garmin.com/modern/course/257650669
Google Map: 50KM course map [https://www.google.com/maps/d/u/1/edit?mid=1GbNPe44OjLu4hNzjSRW_okugC3Dcd0A&ll=36.89947584025974%2C-113.99720907211304&z=12]
View 50KM course map on Google Earth [https://earth.google.com/web/@36.89953186,-113.99720905,673.93732136a,28064.88507038d,30.00000129y,0h,60t,0r/data=KAIyKAomCiQKIDFFeFZsZEFfeEQ0QVNvUlVuYjNLeWJSajV3Mkl4RGhrIAI6AwoBMQ]
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