During the Sockers 1984 outdoor season, Geyer played only two games, spending most of the season as an assistant coach. He was named to succeed
Willy Roy as Sting head coach on December 23, 1986. Geyer was fired by the Sting on February 22, 1988 and replaced by
Gary Hindley. In 1989, he became an assistant coach with the
San Diego Sockers, a position he held until the spring of 1992. In 1992, he became the head coach of the
Monterrey La Raza of the
Continental Indoor Soccer League. He was the 1995 CISL Coach of the Year. In 1993, he also became the head coach of the Mexican Futsal team. He left La Raza in 1997, then returned in 1999 as they played in the
World Indoor Soccer League. In August 2002, the
Harrisburg Heat announced they had hired Geyer to replace
Richard Chinapoo. In March 2004, he became the head coach of the
Monterrey Fury of the second
Major Indoor Soccer League. When that team collapsed before the 2004–05 season, the Monterrey Tigres replaced it in the standings. Geyer became the head coach of the Tigres, but the league terminated the franchise after only a few games. ==Referee==