The past two season's he has filled in on TV for the Arizona Diamondbacks and the Los Angeles Angels on Bally Sports. Waltz also called the Phoenix Regional of the World Baseball Classic for MLB Network and MLB International. A three-time Emmy winner, Waltz is formerly known for calling television broadcasts for the Miami Marlins of Major League Baseball from 2005 to 2017.
Waltz has been a TV regular for the Arizona Diamondbacks and Los Angeles Angels on Bally Sports in recent years, and he also covered the Phoenix Regional of the World Baseball Classic for MLB Network and MLB International. A three-time Emmy winner, Waltz is famous for his work with the Miami Marlins from 2005 to 2017.