Sometimes, something you might start without much thought can become a brilliant work later on in life. And Detroit’s Claude P. Moore’s experiment of building a ball from rubber bands is one such instance. In 2015, Detroit’s Claude P. Moore began winding together two rubber bands with no clear idea of how far the project would go. Eleven years later, that modest beginning had become an 11,578-pound rubber band ball, officially recognised by Guinness World Records as the largest ever made, according to Guinness World Records.The record was confirmed in August 2026 at Belle Isle in Detroit, Michigan, where a crane was used to weigh the enormous creation. Volunteers, family members and friends helped move the ball from its storage container and attach it to the crane, turning an unusual personal obsession into a public celebration of persistence. Read more details about it here:
It began with two bands
Moore’s connection to rubber bands began long before the record attempt. As a child living with hemophilia, a rare and severe blood disorder, he spent considerable time in hospital waiting rooms and doctors’ offices, where he would occupy himself by twisting workplace rubber bands into small balls. Those early moments became the seed of a much larger ambition. Moore later said that coworkers encouraged him to build a massive version of the childhood toy, prompting him to revisit an idea that had stayed with him since middle school.He had already made a rubber band ball “as large as a chair” during his school years, only for it to be stolen by a classmate. Rather than discouraging him, that loss appears to have left the idea firmly in his mind, eventually leading him to wonder whether he could create the biggest ball the world had ever seen.
Eleven years of work
Building the ball was not a short-term project. Moore began in 2015 and continued adding rubber bands over more than a decade, eventually requiring a dedicated storage container after the creation outgrew his garage. The work demanded physical space, time and an extraordinary amount of patience. As the ball expanded, it became large enough to nearly touch the walls of the storage container, making it clear that the project had moved well beyond an ordinary hobby!Moore was not working entirely alone. He credited countless family members and friends, many of whom initially thought he was “crazy,” for helping him continue through the years of winding, storing and transporting the increasingly enormous object.
Breaking the previous record
The previous Guinness World Record for the largest rubber band ball stood at 9,032 pounds, or 4,097 kilograms, and was set by Joel Waul in Florida in 2008. Moore’s final creation surpassed that mark by a substantial margin.When officially weighed, Moore’s ball registered 11,578 pounds, equivalent to 5,251.69 kilograms. Guinness World Records described the weight as comparable to that of an elephant, a comparison that captures just how far the project had travelled from its two-band origin.The official ceremony took place at Belle Isle, where Guinness World Records adjudicator Chloe McCarthy oversaw the measurement process. Dozens of Moore’s friends, family members and coworkers attended, with many helping roll the ball out of its container and secure it to the crane.
Photo credit: Guinness World Records
A crane and a crowd
The logistics of weighing the ball were almost as remarkable as the record itself. Volunteers had to move the massive object from storage, attach it safely to a crane and transport it to Belle Isle for the formal verification.As the crane lifted the ball into the air, McCarthy entered the crane cab and confirmed the record-breaking weight. The crowd reportedly erupted in cheers, with shouts of “Alright, Claudey!” filling the park as Moore accepted his certificate.McCarthy later said that seeing the ball in person was very different from viewing photographs of it. She praised Moore’s dedication, effort and advocacy, noting that many people would have abandoned a project requiring 11 years of sustained commitment.
More than a record
For Moore, the achievement carries personal meaning beyond the number on the scale. He has documented his experience with hemophilia in his 2021 book, ‘My Life with Hemophilia’, and spoke about that journey during the record event.He also distributed signed copies of the book to people attending the ceremony, using the moment to raise awareness of the condition that shaped much of his early life. The rubber band ball became both a record-breaking object and a visible symbol of resilience.Moore’s approach to the project reflected the same mindset he applies to life’s challenges. “The only excuse for failure is the lack of effort,” he told Guinness World Records, a philosophy that clearly guided him through more than a decade of work.
What comes next
The record has given Moore a major milestone, but he sees it as only one step in a larger vision. According to Guinness World Records, he hopes to continue pursuing ambitious goals, including working towards ending world hunger.That ambition may seem a long way from two rubber bands in a Detroit garage, but the ball itself proves the value of starting small and continuing consistently. What began as a way to pass time in medical waiting rooms became a record recognised around the world.Moore’s story is ultimately about more than rubber bands, weight or a certificate. It is about turning a childhood habit into a long-term commitment, inviting a community into the process and showing that extraordinary results can grow from remarkably ordinary beginnings.