GU Energy Labs, which focuses on performance sports nutrition, announced the extension of its sponsorship of the Western States 100-Mile Endurance Run (WSER) through 2029. This renewed commitment deepens GU’s partnership with the trail race, reinforcing the organizations’ shared dedication to endurance athletes, community building and increased representation in ultra running.
GU – as official performance nutrition sponsor – will provide full on-course nutrition support for the Western States Memorial Day Weekend Training Camp and race, plus athlete education and training initiatives in the lead-up to race day. Additionally, the brand’s investment in increasing diverse representation is just as central to the partnership.
“GU Energy Labs has always set an incredible standard in enhancing and expanding the limits of human performance and, equally importantly, in building the human relationships that lead to a stronger sense of community and of belonging,” said WSER president, Topher Gaylord. “These are core organizational values that we have always felt are in perfect alignment with WSER’s vision and values. WSER and GU Energy Labs will continue to be focused on bringing the community of ultra runners closer together through this shared vision of the future. We are absolutely thrilled about this continuation of our longtime partnership with GU Energy Labs.”
Since 2022, GU has collaborated with the WSER board to provide race entries for BIPOC runners, eight in total, including four in kinship with the indigenous-led organization Rising Hearts. With the renewed sponsorship agreement, GU extends its financial and logistical support for these entries, ensuring trail running becomes more reflective of the broader running community.
“Western States is more than just a race—it’s a powerful platform for change,” said Amy Cameron, GU Energy Labs’ VP of marketing. “We’re proud to support athletes from all backgrounds taking their place on the start line. By extending our sponsorship through 2029, we’re making a long-term commitment fueling every runner’s journey to the finish line and to building a trail community that welcomes everyone.”
The 2025 Western States 100 kicked off June 28 in Olympic Valley, California. Over 300 athletes from around the world competed in the historic 100-mile route, from Palisades Tahoe to Auburn.
