He won the silver medal in the men's inaugural beach volleyball tournament at the 1996 Summer Olympics in Atlanta, partnering with Mike Dodd.

In the final game of the regular season against Saint Mary's, he had 24 points and six rebounds in a 68–59 win to clinch the Torreros' first-ever WCAC title.

[5] He also narrowly missed making the roster of the Minnesota Timberwolves, and played professionally in Germany for three years before abandoning basketball in favor of beach volleyball.

[2] Transitioning from the indoor hard court to the soft sand of beach volleyball (which is often played under hot and humid conditions) was not easy, and he developed a reputation for cramping late in tournaments.

[2] Whitmarsh was in the midst of a divorce from his wife Cindy and was found dead in a friend's garage on Wednesday, February 17, 2009, leaving behind two young daughters.