Coach Grandbois is now in his 7th season as Head varsity coach for the Big Red. The women's team have been varsity since 20198, and the men's team was elevated to varsity status in 2026. Prior to 2019, Grandbois was Head Club Coach from 2012-2022.

Under Grandbois leadership, the Denison women's team has amassed a 173-127 record (.58 percent win rate). In the 2024-25 season the Denison Women's Fencing program reached #1 in the College Coaches Poll Div III Ranking for the first time. The Big Red also won the Eastern Women's Fencing Conference Championship in 2025. Coach Grandbois was named Div III Women's Coach of the Year by the USFCA for 2024-25. Grandbois has been fencing since his freshman year at the University of Colorado. He rose up the ranks of the sport, becoming the fifth-best Foil fencer in the country as a member of the U.S. National Foil teams in 1993 and 1994.

After a nearly 20-year hiatus from competition, Grandbois returned to international competition in 2012 with the Team USA Veteran Team. In 2014, he took gold at the USA Fencing National Championships and the North American Cup in Foil. That year he qualified for a spot on the U.S. Veterans’ World Foil Team. Grandbois qualified again for the Veteran World Foil team in 2016 and in 2024. In 2024, he was part of the silver medal winning Vet foil squad at the world championships in Dubai. Also, a part of the Denison faculty, he has published sixteen books of prose and poetry and has had several plays produced.