Amsinger is from a family of seven and has five brothers and a sister. He has two children with his wife. He currently lives in the metropolitan area of New York City.
Before arriving at MLB Network in 2009, Amsinger had worked at CBS College Sports/CSTV and at WTHI-TV in Terre Haute, Indiana. A 2001 graduate of Lindenwood University (St. Charles, Missouri), Amsinger worked at numerous part-time radio jobs while in school including two years as producer of the St. Louis Cardinals Baseball Radio Network at KMOX. Other side jobs included play-by-play broadcaster at KSLQ radio and the inaugural voice of the now defunct River City Renegades indoor professional football organization.
CBS College Sports/CSTV
Before signing with MLB, Amsinger was the first and primary studio host for CBS College Sports Network (formerly CSTV). He hosted numerous shows including Crystal Ball, Inside College Football, The #1 College Sports Show, Generation Next and NCAA March Madness Highlights (the official highlight show of the NCAA men's basketball tournament). He has done play-by-play for women's college basketball and paintball.
In 2006, he hosted the SEC Preview Show with Gary Danielson and Brian Jones. In 2007, Amsinger co-hosted the World Series of Video Games with the former MTV host Susie Castillo. In 2008, Amsinger also hosted the Tour de France for CBS.
Amsinger is currently a studio host at MLB Network, regularly appearing on MLB Tonight as a host and in special event coverage including MLB's All-Star Game and post-season games. Amsinger also hosted MLB Productions' weekly show during the 2012 MLB regular season, Player Poll.
Big Ten Network
During the MLB offseason, Amsinger does play-by-play for select men's college basketball games on the Big Ten Network.
- "On-Air Personalities: Greg Amsinger". MLB Network. Retrieved August 9, 2009.
- "Greg Amsinger". WTHI.com archived through ZoomInfo. Retrieved August 9, 2009.
- "CBS Sports, CSTV huddle up with '06 SEC preview show". CBS Sports. Retrieved August 9, 2009.
- "CBS Signs World Series of Video Games for Second Year". GameDaily. May 30, 2007. Retrieved August 9, 2009.