After making his decision, Marti moved to the youth department of the Young Boys in 1969, advancing to their first team a year later.
[1] During the 1972–73 season he signed for FC Zürich, this as the up-and-coming FCZ under German trainer Timo Konietzka lured him with a multi-year contract.
Marti played his domestic league debut for his new team in the home game in the Letzigrund on 20 October 1972 as FCZ won 4–0 against Grenchen.
[4] In the summer of 1975, Marti transferred to FC Basel under head coach Helmut Benthaus.
With Aarau, in that season, Marti won the League Cup, winning the two legged final 1–0 on aggrigate against St.
The following season, under new and up-coming head coach Ottmar Hitzfeld the team won the Swiss Cup for the first and only time in the club's history.
After his football career, the father of two adult children, ran a cleaning company from Pfeffingen with his life partner Beatrice Straumann.