Career
He batted and threw left-handed. Wallace had an 11–3 record in 117 career games. He was drafted by the Philadelphia Phillies in the 4th round of the 1969 amateur draft.
Beginning in 2011, Wallace is a baseball pundit for the Mid-Atlantic Sports Network (MASN).
Primarily covering the Washington Nationals, he appears on The Mid-Atlantic Sports Report and Nats Talk.