LIVESTREAM - The first Speed Highline World Cup of 2025 Follow the athletes on Sunday in the finals, organised by our member BeSlack. QUARTER FINALS : 8:00 - 13:00 FINALS: 13:00 - 18:00 BESLACK Website Speed Highline World Cups 2025
NEW World Firsts - Tricks database online We are collecting selected world firsts tricks in freestyle trickline, freestyle highline and rodeolining and hand out certificates. Click - World Firsts overview
NEW World Records Database We have been collecting World Records since 2010, we now managed to publizise all the records online, including historical records. We also wrote a first framework on how we handle them. Click - World Records overview
Speed Ranking List Winners 2024 Amidst the dynamic energy of 2023-24, the speedlining scene witnessed an electrifying surge, with festivals worldwide hosting an array of thrilling competitions. At each competition, finalists collect points depending on their ranks and the size of the competition (e.g. Masters, World Cup..), giving them a final score at the end of the year. The yearly winners in our system are defined by the sum of the highest points ranking at the two largest events they participated in 2024. To see the best athletes of the past three years combined click here. Our Speed Disciplines: [...]
Trickline Ranking List Winners Join us as we celebrate the outstanding achievements of the trickline champions of 2024, whose remarkable talents have dazzled audiences and set new standards in the sport. Freestyle Trickline competitions are happening all around the world and finalists collect points depending on their ranks and the size of the competition (e.g. Masters, World Cup..), giving them a final score at the end of the year. The yearly winners in our system are defined by the sum of the highest points ranking at the two largest events they participated in 2024. Here the top three ranking athletes [...]
CRG Highline incident and consequences on webbing lifetime recommendations On April 20th, 2024, there was a mainline and backup failure at Cosumnes River Gorge (CRG), California, United States of America. The failure occurred during a spontaneous tandem session, with the main snapping during a leash fall and the backup failing as it engaged. Both highliners fell but had only minor injuries given the circumstances. Up until now the lifetime recommendations for non-PES (Polyester) and non-PA (Polyamid/Nylon) webbings were summarized as "high-tech/low stretch" webbings in our highline gear standards. Due to the CRG incident the ISA Safety Commission decided [...]
The second Highline World Championships For the second time ever in the sport of slacklining, a World Championship in highlining takes place on July 17.-21., 2024. The event is held in Flims Laax, Switzerland on the summit of Crap Sogn Gion at 2250 m asl. Several ISA officials are active onsite, coordinating with judging, rigging and rescue. 42 athletes; 16 women and 26 men are participating. The athletes compete gender-separated in the discipline of Freestyle and Speed Highline. The event is organised by our active member Swiss Slackline. Infos and Results of the Competitions [...]
Effects of UV on breaking strength of polyamide and polyester highline webbing Members of the ISA Safety Commission have performed comparative two year degradation tests of some commonly used webbing materials used in highlining . These tests were performed at extreme weather conditions in a high alpine environment to evaluate the highline webbing safety standard ISA:41 and to provide further data for evaluating highline webbing lifetime around the globe. The high-altitude Jungfraujoch research station offers a perfect venue for installing an array of frames with different webbing samples for a long-term, combined weathering and solar radiation study. Not [...]
Highline Backup Fall: Experiment and simulation Members of the ISA Safety Commission have performed highline backup fall experiments and compared results to the simulator that is available on the ISA website. The results were in a range which justifies recommending the usage of the backup fall simulator. We organized a series of experiments to test a range of parameters in a backup fall and compare them to the simulator. We were able to conclude that the simulator is accurate enough to be used as a prediction tool: it generally overestimated peak forces in the system in our experiments, [...]
International Slackline Association
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