Van Wieren was born in Rochester, New York and attended Cornell University, where he started his broadcast career by substituting for the regular broadcaster of the Cornell basketball game, who had gotten into a car accident. Van Wieren left Cornell before the start of his junior year, and eventually landed a couple of radio job in Northern Virginia. In 1966, he moved to Binghamton, New York for his first baseball broadcasting job, where he revived game broadcasts for the AA minor leagueBinghamton Triplets after they had been off the air for several years. He served as the Triplets' play-by-play broadcaster for two seasons before the team folded, at both WNBF and WINR. Van Wieren moved in 1972 to work inToledo, Ohio for WDHO-TV, but returned to play-by-play broadcasting for the AAATidewater Tides in 1974.
Atlanta Braves
Van Wieren was hired by Turner Sports as a play-by-play broadcaster for the Atlanta Braves in December 1975. From 1976 to 2008, he called the team's television and/or radio broadcasts, teaming with a number of on-air partners including Ernie Johnson Sr., Don Sutton and Skip Caray. Johnson originally nicknamed Van Wieren "The Professor" because Van Wieren looked like pitcher Jim Brosnan. The moniker stuck for his in-depth knowledge of the game and thorough preparation before broadcasts. According to Van Wieren himself, on the September 17, 2007, Atlanta Braves Radio Network broadcast, he worked for the Washington Post in the 1960s. He did not say what his position was at the paper, only that he met Shirley Povich while he was there. Along with Caray, Van Wieren was inducted into the Atlanta Braves Hall of Fame in 2004, joining an impressive list in Braves history that already included Hank Aaron, Lew Burdette, Del Crandall, Tommy Holmes, Ernie Johnson Sr., Eddie Mathews, Phil Niekro, Dale Murphy, Kid Nichols, Ted Turner, Johnny Sain and Warren Spahn. On December 18, 2006, the Braves announced that Van Wieren had signed a three-year contract to continue doing Braves broadcasts on the radio.
On October 21, 2008, Van Wieren unexpectedly announced his retirement from broadcasting effective immediately, after 33 seasons with the Braves. His departure came less than three months after the death of his longtime on-air partner Skip Caray. The broadcast booth for the Braves' home games at Turner Field is named for Van Wieren. Van Wieren co-wrote a book titled Of Mikes and Men: A Lifetime of Braves Baseball with Jack Wilkinson. It was released in April 2010. On November 4, 2009, Van Wieren was diagnosed with cutaneous B-cell lymphoma. He suffered a relapse and additional rounds of chemotherapy after a recurrence in the fall of 2010. On August 2, 2014, Van Wieren died from complications of lymphoma. He was married to Elaine Van Wieren, with whom he had two children, from 1964 until his death.