Biden and Ryan arrived at Tampa International Airport within hours of each other; their respective planes left sitting a few hundred yards from each other. Biden and Ryan, however, did not glimpse sight of each other.
Biden spoke at campaign events at Sun City Center and at Lincoln Park High School in Fort Pierce.
Ryan held an entrepreneurship roundtable at the University of South Florida and toured the college's Tampa Bay Technology Incubator. The Wisconsin congressman was also scheduled to hold a fundraiser in West Palm Beach, followed by a joint rally with GOP presidential nominee Mitt Romney in Daytona Beach.
TBO.com said Biden addressed a standing-room-only crowd in Sun City, a large planned retirement community with an active Democratic Party.
Since 1960, the winner of Hillsborough County has matched the national winner in every election except one, WTSP-TV, Tampa-St. Petersburg, reported.