Stanfill also played high school football, and was named Sacramento defensive player of the year in 2002.
Due to his strong play the team won the title, finishing the season undefeated.
[5] In 2019, Stanfill returned to compete in the second season of Major League Rugby for the San Diego Legion.
[7] Stanfill was included in the USA squad for the 2007 Rugby World Cup, where he scored a try against both Tonga and Samoa in the Eagles' pool matches.
Stanfill finished his career competing in the 2015 Rugby World Cup in England, starting for the Eagles against heavy favorites South Africa in Olympic Stadium.