Thalmann joined FC Basel's first team for its 1899–1900 season. In that season, the club did not compete in the Swiss Serie A and played only friendly games. Thalmann played his first game with the team in the away match in the Stadion Schützenmatte on 21 January 1900 when Basel were beaten 1–3 by local rivals Old Boys.[1] Thalmann played five friendly games in his first season and in his second season he played mainly with Basel's reserve team. After playing in seven friendly games, he played his first domestic league match for the club in the home game at the Landhof on 23 November 1902 when Basel was defeated 1–2 by Old Boys.[2]
Thalmann played for Basel's first team for four season and during this time he played a total of 18 games for Basel. Seven of these games were in the Swiss Serie A and 11 were friendly games.[3] He probably played in more games than mentioned, but the documentation is incomplete.[note 01–02 1][note 03–04 1]
Notes
Footnotes
^The player lines-ups in 1 match and goal scorers in 3 matches of the 7 league games during the 1901–02 season are unknown or incomplete.
(NB: Despite all efforts, the editors of these books and the authors in "Basler Fussballarchiv" have failed to be able to identify all the players, their date and place of birth or date and place of death, who played in the games during the early years of FC Basel)