About Us

We are a highly professional organizing team and have been running in extreme races ourselves for more then 20 years. Moreover, we have a proven track-record in organizing several events.

The experience that we have gained around the world by participating in, and organizing such races, enables us to stage a well prepared event and cater to our competitors' every possible need.

Our professional multi-lingual team will be accompanied by very motivated and experienced volunteers as well as a local team of experts in organizing outdoor events in remote areas.

Our higly regarded medical team will provide you with all medical treatments that you might need required during the race week.

Stefan Betzelt/Germany - Founder and General Manager of GlobalLimits

Stefan was born and lives in Wiesbaden/Germany. He founded GlobalLimits in 2012. Stefan has a wealth of extreme racing experience, having participated in many of the most gruelling ultra races, such as Marathon des Sables, Les Foulees de la Soie, Himalayan 100Mile Stage Race, Racing the Planet Namibia and Desert Oman Raid. He also participated in about 20 city-marathons (PB 2:46) and successsfully climbed the Kilimanjaro and the Mount Aconcagua.

Stefan has visited more than 85 countries and learnt a great deal about different cultures and people. He now makes use of this experience to select outstanding and unique locations for the GlobalLimits races.

Stefan has worked as a managing director for some of the leading global financial institutions before he retired in 2004 to become a self employed financial and personnel consultant.

Stefan is also a member of the Curatoship of the Institute of Sports Medicine in Frankfurt/Germany.

Mario Machado, Lisbon/Portugal - Course Director

Mario, a physical Education teacher and international athletic coach, is the technical director of the Lisbon Half Marathon (30.000+ runners), the Portugal Half Marathon, the Lisbon Marathon and the organizer, technical director and controller of the race of various other high profile road races in Portugal and international trail races.

Since 2009 he is also the "Controller of the race" of the Marathon des Sables in Morrocco.

Mario is the publisher and director of "Spiridon-Portugal" running magazin since 1978.

He is also a very experienced runner himself. He just finished his 100th Marathon/Ultra at GlobalLimits Cambodia 2017.

Mario already served as a volunteer for the inaugural race in Albania in 2017 and ran his 100th Ultra at GlobalLimits Cambodia 2017.

Nathan Montague/Great Britain - Course Marker

Nathan is a father of two beautiful girls, Teacher, Coach and aspiring International athlete. Having competed for his country on multiple occasions in Ultra distance he is continually pushing the boundaries of his own perceived limitations and relish the challenge of this unique sport which tests our resolve every time we dare take the start line. Having competing in some amazing places around the world he is aiming to push himself in international competition on both the trails, mountains and the roads including 24hour racing and the Multi-day stage races. He has competed and achieved success across the UK with numerous course records and wins in national competitions on the trails and roads in ultras in addition to races international, including the Mt Goaligong Ultra in China, KAEM in South Africa and GlobalLimits own Wild Elephant Trail in Sri Lanka.He relishs competing for his country and his short term targets include making the national team in 24 hour racing and the Ultra Gobi 400km in September 2017.

Nathan already served as a course marker in the inaugural race Albania 2017.

Ryan Paterson, Denver/USA - Medical Director

Dr. Ryan Paterson attended the University of Vermont School of Medicine and completed his Emergency Medicine Residency and Fellowship in Wilderness/Altitude/Expedition Medicine at Denver Health Medical Center/University of Colorado. He also holds advanced certifications in Tropical Medicine from the London School of Tropical Medicine and Hygiene (DTM&H) and in Mountain Medicine (DiMM). He is a practicing Emergency Physician for Kaiser Permanente at St Joseph’s Hospital in Denver, Colorado.

Dr. Paterson serves as co-course director for the Wilderness Medical Society and Universities of Colorado and Utah’s Diploma in Mountain Medicine Course (DiMM). He is the current United States delegate to the International Society of Mountain Medicine (ISMM). Currently, Dr. Paterson is working, in partnership with CU South Denver to develop a Wilderness Medicine for Kids program utilizing an original curriculum. He also serves as medical director for No Barriers and another non-profit (Kolkata City Mission) working to establish sustainable development solutions in education, health, women’s empowerment, micro-enterprise and public-health for informal communities in and around Kolkata, India.

Ryan already was our medical director in Cambodia 2016 and Bhutan 2017.

Andrew Hildner, Boulder/USA - Doctor

Drew served 7yrs as Physician Assistant in primary, emergency, orthopedic, and remote medicine. 4yrs previously as EMT working on an ambulance. 15 years of mountain rescue experience with over 600 rescues. Adjunct Faculty University of Colorado Dept of Emergency Medicine Wilderness Medicine Section.

He worked together with our medical director, Ryan Paterson, at WMS section at University of Colorado and traveled to Peru together in 2016 to provide wilderness medicine training to Peruvian guide service/SAR team and other South American agencies (police, fire, rescue, etc).

Geert Meese, Tielt/Belgium - Volunteer

Geert is a Belgian medic who decided to work a little bit less and spending  more time doing his passions: multi stage racing ( 100 km del Sahara, Marathon des Sables , Grand to Grand ….) , marathon racing , or volunteering in multi stage races ( Spain, Portugal, Oman …). a passion he sheares with his wife.
If not working or racing , his time is spend abroad with a high preference for unbeaten tracks in Asia or South America.  Always enthusiastic  to help participants to make their dreams come true.

Geert already served as a volunteer for GlobalLimits in Cambodia 2015 + 2016, Bhutan 2016 + 2017 and in the inaugural race Albania 2017.

Neus Collado, Blanes/Spain - Volunteer

Neus is Spanish. She has traveled to more than 70 countries, and has participated as a volunteer in several ultra trails and stage races around the world, as she accompanies her husband runner in all the adventures that are proposed.
She has been in the Amazon of Brazil, in the Peruvian jungle, in the Himalayan mountain range, in the Arctic, among many others. He also organized the Costa Brava Xtrem Running for 5 years, a stage race involving up to 400 runners every year from more than 45 diferent nationalities.

Chemistry by profession, passionate about paddle surf and an amateur athlete, always ready to help and enjoy the adventure of ultra trails. After her experience as a volunteer in this type of racing, she admires the spirit of overcoming of the runners.

Neus already served as a volunteer at GlobalLimits Cambodia 2017.

Ruth Viane/Belgium - Volunteer

Ruth works in a bank. When not working she runs marathons, ultra's up to 100K and
an occasional multi day event.  She started running about 15 years ago with a
start to run program and she never stopped. Up to now she has finished about 75
marathons and ultra's. Big mass events abroad or local smaller events. She likes both formats.  The last big event she did was MDS last April. Due to her broad experience as a runner she has a very good understanding how runners feel and what they need during the race.

This is Ruth' first time volunteering in a GlobalLimits event.


Steven Hobert, Hamme/Belgium - Volunteer

Steven is a sports- physiotherapist in Belgium and red cross first aid teacher.

He is the checkpoint coordinator on Roc du Maroc (mountainbike) and Morocco desert challenge (rally) as well as the camp-manager at Libya desert challenge and Touaregtrail.

Steven is an experienced outdoor and remote first-aid and physio.

He is a trailrunner, mountainbiker, seakayakcoach and is a former officer para-commando Belgium.

Edmund Dittler/Germany - Volunteer

Ede works as a manager in a computer company near Frankfurt.

In is free time he enjoys biking, hiking and spend time with his kids.

Ede already served as a volunteer in the inaugural races in Cambodia 2012 and Sri Lanka 2015.

Amy Paterson, Denver/USA - Volunteer

Amy is the mother of two active girls, married to Ryan Paterson, GlobalLimits' medical director. She works as an Elementary School Teacher. In addition, she volunteer coaches soccer and lacrosse for young girls in Denver. She has supported and volunteered for numerous running, cycling, and triathlons races.

 She was an All-American lacrosse player in high school and college and loves working as a team. She is truly inspired by athletes competing in ultra-marathons and is excited to volunteer. Amy loves to travel, be outdoors and is always up for an adventure.

Nertil Dhimitri/Albania - Volunteer

Nertil was born and grown up in Permet/Albania.

He works in Natyral Agency of Natyral Resources(Tirana). In free time he likes running, swiming, hiking etc.

This is the first time Nertil is serving as a volunteer for GlobalLimits.

Vladimir Dedndreaj/Albania - Logistics & Infrastructure

Albania Adventure is a specialized and licensed agency in the organization of quality tours with appropriate guides in Trekking, Hiking, Kayak, Diving, Rocky Climbing, Ski Mountaineering, Off Road, Outdoor sports and Extreme adventures, all this thanks to the ground teams and professional guides.

This agency was created in 1998 by Vladimir Dedndreaj, who loves the outdoor life and loves sharing with others his passion and desire of exploring Albania’s beauty, always guided by the spirit of adventure. He was soon joined by other friends, professional guides too. During these years their adventures took them from east to west, from north to south, and they soon would know the inhabitants of the different regions and cultures of the provinces where they stepped. Throughout all these years of exploration, they came to know the Albanian territory better than anyone else. This passion for nature was shared in years with thousands of tourists from around the world, who chose to visit Albania and to live the Albanian adventure.

Throughout the years, Albania Adventure guides are constantly trained and professionalized, this also due to the support and training provided by their European partners. Members of Albania-Adventure are regularly trained in order to be always updated and fully fit. Our guides also speak fluent English, Italian and French. Adventure Albania staff is composed of 8 terrain adventure guides and 3 office operators.