Alex McCormack has set a new provisional seven-day distance world record, riding 3,826.47km in a brutal ultra-endurance effort that saw him average 18.5 hours in the saddle each day. Riding repeats of a flat 150km out-and-back route along the Moselle river in Koblenz, Germany, McCormack today surpassed the previous record of 3,813.81km set by Sprude Arvis in 2024. The new record is awaiting ratification by the World Ultra Cycling Association. McCormacks daily distances culminated in a monstrous 727.75km final day, with several days exceeding 600km. The 28-year-old Canyon-sponsored rider completed the challenge in 168 hours of near-continuous riding.The ride was made more difficult by unseasonably cold, rainy and snowy weather, forcing him to limit time off the bike to just a few hours per day for recovery, nutrition and sleep. Speaking to BikeRadar, Canyon team lead sports marketing Markus Schweikert said: "I dont know where to start it feels like its been four weeks, not seven days. "To be honest, we had a grand arrival planned, but [with the weather] we were worried he wouldnt make the record. Everyone wrote it off at some point. "Even an hour before [he finished], we werent sure he would make it it came right down to the wire. "As soon as the clock hit 7-days, he was about 4km from the end [of the 150km loop] and he stopped dead he had absolutely nothing left, he was empty. More bonkers records: Amateur cyclist rides a staggering 55,555km in one year Alex McCormacks seven-day record in 5 mind-bending numbers 3,826.47km total distance covered 168 hours ride time 18.5 hours average riding time per day 727.75km covered on the final day 14,000 calories consumed daily "We have a doctor on standby" McCormack battled terrible weather throughout the attempt. Canyon Schweikert says McCormack pushed himself to the absolute limits of endurance, with a staggering effort required to make up time lost due to the weather: "The last 48 hours were so painful he slept only an hour in the last 40 hours. Last night, he was singing karaoke with the driver [to stay awake]," "Right now hes completely passed out, and we have someone watching him 24-hours. The important thing is hes in full health though we took safety very seriously. "We have a doctor on standby, but theres no concern he had a sip of champagne, a whole glass actually when he finished the ride." Staying on top of nutrition was one of the toughest challenges. Canyon Throughout the attempt, McCormack was supported by a small crew who assisted with logistics, nutrition and recovery. He consumed an estimated 14,000 calories per day to sustain the effort. Support team member, Harry Dowdney said the poor weather forced McCormack to wear many layers, which affected his aerodynamic performance, but the challenge presented other practical challenges: The biggest thing for the support crew was to wake Alex after short naps and make sure he kept eating and drinking. There was no way he could replace those 14,000 calories. We had to constantly remind him to eat and drink, passing him food as often as we could. He rode a TT bike for the attempt. Canyon McCormack rode a custom Canyon Speedmax CFR for the whole attempt. In a build more typical of elite triathlon racing, McCormacks bike featured a high stack aero front end, integrated hydration, an aggressively nose-down saddle, lights from Exposure, and a top tube bag. A seasoned ultra-distance racer, McCormacks previous results include wins at the Atlas and Hellenic Mountain Races, as well as the Highland Trail 550. The latest record forms part of his preparation for a summer campaign targeting the Triple Crown of US ultra-distance events: the Tour Divide, Colorado Trail Race and Arizona Trail Race. He also set a Double Everesting World Record in 2025, climbing 17,732 metres in just under 21 hours. A film crew accompanied Alex on his attempt, with a documentary due to be released later this year.