Robert Brock Sisk, of Houston, Texas, passed away suddenly on June 5, 2026. Rob was born on October 26, 1972, in Houston, Texas. After six adventurous years together, Rob married the love of his life, Lisa, in Telluride, Colorado, on July 21, 2014—just two days after completing a 100-mile mountain bike race. The births of his children, Olivia in 2017 and Liam in 2019, were the light of his life and his proudest accomplishments. He would tell everyone they were the best thing that ever happened to him.

Rob brought laughter wherever he went. He was a devoted father who would do anything for his children and a loyal friend to many. Cycling brought Rob many of his closest friendships and some of his happiest memories. Rob never met a stranger. Whether on a bike ride, at a race, or cheering from the sidelines, he had a gift for making people feel welcome and valued.

Rob is survived by his wife, Lisa Sisk; his children, Olivia and Liam; his mother, Louise Sisk; his siblings, Lanna (Greg) VonBaden and Chris (Cindy) Sisk. A private family ceremony will be held for Rob. A celebration of life will be announced at a later date. For those wishing to provide support during this time, a meal train has been organized and can be accessed at https://mealtrain.com/zm6lzo