Graham Walker joined the Oredigger swimming & diving staff in the fall of 2025, making the 2025-26 season his first as an assistant coach at Mines.
Walker joined the Oredigger staff following an elite amateur and collegiate swimming career. Born and raised in Nairobi, Kenya, Walker represented Team Kenya at both the All-Africa Games and the Commonwealth Games. He went on to compete for the University of Denver under coach McDaniel. His high-level performance in the pool also led to serving as team captain his final two years with the Pioneers. Walker’s coach career started while he was still in college, teaching swimming lessons, and continued after graduation. He eventually accepted a formal coaching role with the University of Denver Hilltoppers Swim Club in 2022. Since then, Walker coached multiple state champions and program record holders. He returned to DU as an assistant coach in 2024 and helped oversee conference titles and continued competitive success.
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